GE 469 Instruction Manual

GE Grid Solutions Instruction Manual Software Revision: 5.20 Manual P/N: 1601-0122-AJ Manual Order Code: GEK-106474S GE Grid Solutions 650 Markland Street Markham, Ontario Canada L6C 0M1 TELEPHONE: Worldwide +1 905 927 7070 Europe/Middle East Africa +34 94 485 88 54 North America toll-free 1 800 547 8629 FAX: +1 905 927 5098 E-MAIL: Worldwide [email protected] Europe [email protected] HOME PAGE: Internet: http://www.gegridsolutions.com/multilin *1601-0122-AJ*

GE Multilin 469 Motor Management Relay instruction manual for revision 5.20. 469 Motor Management Relay, is a registered trademark of GE Multilin Inc. The contents of this manual are the property of GE Multilin Inc. This documentation is furnished on license and may not be reproduced in whole or in part without the permission of GE Multilin. The content of this manual is for informational use only and is subject to change without notice. Part numbers contained in this manual are subject to change without notice, and should therefore be verified by GE Multilin before ordering. Part number: 1601-0122-AJ (February 2016)

The following symbols used in this document indicate the following conditions: Note Indicates a hazardous situation which, if not avoided, will result in death or serious injury. Note Indicates a hazardous situation which, if not avoided, could result in death or serious injury. Note Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury. Note Indicates practices not related to personal injury. NOTE Indicates general information and practices, including operational information and practices, that are not related to personal injury.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL TOC–I Table of Contents 1: GETTING STARTED IMPORTANT PROCEDURES .......................................................................................................... 1-1 CAUTIONS AND WARNINGS ............................................................................................... 1-1 INSPECTION CHECKLIST ...................................................................................................... 1-1 MANUAL ORGANIZATION ................................................................................................... 1-2 USING THE RELAY ............................................................................................................................ 1-3 MENU NAVIGATION ............................................................................................................. 1-3 PANEL KEYING EXAMPLE .................................................................................................... 1-7 CHANGING SETTINGS .................................................................................................................... 1-9 INTRODUCTION ..................................................................................................................... 1-9 THE HELP KEY .................................................................................................................... 1-10 NUMERICAL SETTINGS ........................................................................................................ 1-10 ENUMERATION SETTINGS ................................................................................................... 1-11 OUTPUT RELAY SETTINGS .................................................................................................. 1-15 TEXT SETTINGS ..................................................................................................................... 1-15 APPLICATION EXAMPLE ................................................................................................................. 1-17 DESCRIPTION ........................................................................................................................ 1-17 INSTRUMENT TRANSFORMER DATA ................................................................................... 1-25 MOTOR PROTECTION .......................................................................................................... 1-25 S2 SYSTEM SETTINGS ......................................................................................................... 1-30 S3 DIGITAL INPUTS SETTINGS ........................................................................................... 1-32 S5 THERMAL MODEL .......................................................................................................... 1-33 S6 CURRENT ELEMENTS ..................................................................................................... 1-33 S7 MOTOR STARTING ......................................................................................................... 1-35 S8 RTD TEMPERATURE ...................................................................................................... 1-35 OTHER SETTINGS ................................................................................................................. 1-36 INSTALLATION ................................................................................................................................... 1-38 TESTING ................................................................................................................................ 1-38 2: INTRODUCTION OVERVIEW ........................................................................................................................................... 2-1 DESCRIPTION ........................................................................................................................ 2-1 ORDERING INFORMATION ................................................................................................... 2-4 ORDER CODES ..................................................................................................................... 2-5 EXAMPLE ORDER CODES .................................................................................................... 2-5 ACCESSORIES ....................................................................................................................... 2-5 SPECIFICATIONS ............................................................................................................................... 2-6 INPUTS .................................................................................................................................. 2-6 OUTPUTS ............................................................................................................................... 2-7 PROTECTION ......................................................................................................................... 2-8 DIGITAL INPUTS ................................................................................................................... 2-11 MONITORING ........................................................................................................................ 2-12 POWER SUPPLY ................................................................................................................... 2-13 CPU ...................................................................................................................................... 2-14 WAVEFORM CAPTURE (TRACE MEMORY) ......................................................................... 2-14 TESTING ................................................................................................................................ 2-14 CERTIFICATION ..................................................................................................................... 2-15 PHYSICAL .............................................................................................................................. 2-16 ENVIRONMENTAL ................................................................................................................. 2-16 LONG-TERM STORAGE ........................................................................................................ 2-16

TABLE OF CONTENTS 3: INSTALLATION MECHANICAL INSTALLATION ......................................................................................................3-1 DESCRIPTION ........................................................................................................................3-1 PRODUCT IDENTIFICATION ..................................................................................................3-2 INSTALLATION .......................................................................................................................3-3 UNIT WITHDRAWAL AND INSERTION ................................................................................3-5 ETHERNET CONNECTION ....................................................................................................3-7 DEVICENET CONNECTION ..................................................................................................3-8 TERMINAL LOCATIONS ........................................................................................................3-9 TERMINAL LIST .....................................................................................................................3-9 ELECTRICAL INSTALLATION .........................................................................................................3-11 TYPICAL WIRING ..................................................................................................................3-11 DESCRIPTION ........................................................................................................................3-12 CONTROL POWER ................................................................................................................3-12 CURRENT INPUTS .................................................................................................................3-13 VOLTAGE INPUTS .................................................................................................................3-17 DIGITAL INPUTS ...................................................................................................................3-18 ANALOG INPUTS ..................................................................................................................3-19 ANALOG OUTPUTS ..............................................................................................................3-19 RTD SENSOR CONNECTIONS ............................................................................................3-20 OUTPUT RELAYS ..................................................................................................................3-22 DRAWOUT INDICATOR ........................................................................................................3-24 RS485 COMMUNICATIONS PORTS ...................................................................................3-24 DIELECTRIC STRENGTH .......................................................................................................3-25 2-SPEED MOTOR WIRING ..................................................................................................3-27 4: INTERFACES FACEPLATE INTERFACE .................................................................................................................4-1 DESCRIPTION ........................................................................................................................4-1 DISPLAY .................................................................................................................................4-1 LED INDICATORS .................................................................................................................4-2 RS232 PORT .......................................................................................................................4-3 KEYPAD .................................................................................................................................4-4 SETTINGS ENTRY ..................................................................................................................4-6 DIAGNOSTIC MESSAGES .....................................................................................................4-7 SELF-TEST WARNINGS .......................................................................................................4-8 FLASH MESSAGES ................................................................................................................4-9 ENERVISTA 469 SETUP SOFTWARE INTERFACE .................................................................4-10 OVERVIEW ............................................................................................................................4-10 HARDWARE ...........................................................................................................................4-11 INSTALLING THE ENERVISTA 469 SETUP SOFTWARE ....................................................4-13 CONNECTING ENERVISTA 469 SETUP TO THE RELAY ......................................................4-16 CONFIGURING SERIAL COMMUNICATIONS .......................................................................4-16 USING THE QUICK CONNECT FEATURE ............................................................................4-17 CONFIGURING ETHERNET COMMUNICATIONS .................................................................4-18 CONNECTING TO THE RELAY ..............................................................................................4-19 WORKING WITH SETTINGS AND SETTINGS FILES .............................................................4-22 ENGAGING A DEVICE ...........................................................................................................4-22 ENTERING SETTINGS ............................................................................................................4-22 FILE SUPPORT ......................................................................................................................4-23 USING SETTINGS FILES .......................................................................................................4-23 UPGRADING RELAY FIRMWARE .................................................................................................4-35 DESCRIPTION ........................................................................................................................4-35 SAVING SETTINGS TO A FILE ..............................................................................................4-35

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL TOC–III LOADING NEW FIRMWARE ................................................................................................. 4-35 ADVANCED ENERVISTA 469 SETUP FEATURES ................................................................... 4-38 TRIGGERED EVENTS ............................................................................................................. 4-38 WAVEFORM CAPTURE (TRACE MEMORY) ......................................................................... 4-38 PHASORS .............................................................................................................................. 4-40 TRENDING (DATA LOGGER) ................................................................................................ 4-42 EVENT RECORDER ............................................................................................................... 4-44 MODBUS USER MAP ........................................................................................................... 4-46 VIEWING ACTUAL VALUES ................................................................................................. 4-46 USING ENERVISTA VIEWPOINT WITH THE 469 ................................................................... 4-49 PLUG AND PLAY EXAMPLE ................................................................................................. 4-49 5: SETTINGS OVERVIEW ........................................................................................................................................... 5-1 SETTINGS MESSAGE MAP ................................................................................................... 5-1 TRIPS, ALARMS, AND BLOCKS ............................................................................................ 5-6 RELAY ASSIGNMENT PRACTICES ........................................................................................ 5-7 S1 469 SETUP .................................................................................................................................... 5-8 PASSCODE ............................................................................................................................ 5-8 PREFERENCES ....................................................................................................................... 5-9 COMMUNICATIONS .............................................................................................................. 5-11 REAL TIME CLOCK ............................................................................................................... 5-13 DEFAULT MESSAGES ........................................................................................................... 5-14 MESSAGE SCRATCHPAD ...................................................................................................... 5-15 CLEAR DATA ......................................................................................................................... 5-16 INSTALLATION ....................................................................................................................... 5-16 S2 SYSTEM SETUP ............................................................................................................................ 5-18 CURRENT SENSING .............................................................................................................. 5-18 VOLTAGE SENSING .............................................................................................................. 5-20 POWER SYSTEM ................................................................................................................... 5-20 COMMUNICATIONS CONTROL ............................................................................................ 5-21 REDUCED VOLTAGE ............................................................................................................. 5-22 PRESET MOTOR VALUES ..................................................................................................... 5-24 S3 DIGITAL INPUTS .......................................................................................................................... 5-26 DESCRIPTION ........................................................................................................................ 5-26 STARTER STATUS ................................................................................................................. 5-27 ASSIGNABLE INPUTS 1(4) ................................................................................................... 5-27 S4 OUTPUT RELAYS ......................................................................................................................... 5-36 DESCRIPTION ........................................................................................................................ 5-36 RELAY RESET MODE ............................................................................................................ 5-36 FORCE OUTPUT RELAY ....................................................................................................... 5-37 S5 THERMAL MODEL ...................................................................................................................... 5-38 MOTOR THERMAL LIMITS ................................................................................................... 5-38 THERMAL MODEL ................................................................................................................ 5-40 OVERLOAD CURVE SETUP .................................................................................................. 5-41 S6 CURRENT ELEMENTS ............................................................................................................... 5-60 SHORT CIRCUIT TRIP ........................................................................................................... 5-60 OVERLOAD ALARM .............................................................................................................. 5-61 MECHANICAL JAM ............................................................................................................... 5-61 UNDERCURRENT .................................................................................................................. 5-62 CURRENT UNBALANCE ....................................................................................................... 5-63 GROUND FAULT ................................................................................................................... 5-65 PHASE DIFFERENTIAL .......................................................................................................... 5-66 S7 MOTOR STARTING ..................................................................................................................... 5-68

TABLE OF CONTENTS ACCELERATION TIMER .........................................................................................................5-68 START INHIBIT ......................................................................................................................5-68 JOGGING BLOCK ..................................................................................................................5-69 RESTART BLOCK ...................................................................................................................5-71 S8 RTD TEMPERATURE ...................................................................................................................5-72 RTD TYPES ...........................................................................................................................5-72 RTDS 1 TO 6 .......................................................................................................................5-73 RTDS 7 TO 10 .....................................................................................................................5-74 RTD 11 ................................................................................................................................5-75 RTD 12 ................................................................................................................................5-76 OPEN RTD SENSOR ............................................................................................................5-77 RTD SHORT/LOW TEMP ....................................................................................................5-77 S9 VOLTAGE ELEMENTS ................................................................................................................5-78 UNDERVOLTAGE ...................................................................................................................5-78 OVERVOLTAGE ......................................................................................................................5-80 PHASE REVERSAL .................................................................................................................5-80 FREQUENCY ..........................................................................................................................5-81 S10 POWER ELEMENTS .................................................................................................................5-82 POWER MEASUREMENT CONVENTIONS ...........................................................................5-82 POWER FACTOR ...................................................................................................................5-83 REACTIVE POWER ................................................................................................................5-84 UNDERPOWER ......................................................................................................................5-85 REVERSE POWER .................................................................................................................5-86 TORQUE SETUP ....................................................................................................................5-86 OVERTORQUE .......................................................................................................................5-87 S11 MONITORING ............................................................................................................................5-88 TRIP COUNTER .....................................................................................................................5-88 STARTER FAILURE ................................................................................................................5-88 DEMAND ...............................................................................................................................5-89 PULSE OUTPUT ....................................................................................................................5-91 LOSS OF COMMUNICATIONS ..............................................................................................5-92 S12 ANALOG INPUTS/OUTPUTS ................................................................................................5-94 ANALOG OUTPUTS 1 TO 4 .................................................................................................5-94 ANALOG INPUTS 1 TO 4 .....................................................................................................5-96 ANALOG INPUT DIFF 1-2 ...................................................................................................5-98 ANALOG INPUT DIFF 3-4 ...................................................................................................5-99 S13 469 TESTING .............................................................................................................................5-101 SIMULATION MODE .............................................................................................................5-101 PRE-FAULT SETUP ...............................................................................................................5-102 FAULT SETUP ........................................................................................................................5-103 TEST OUTPUT RELAYS .........................................................................................................5-104 TEST ANALOG OUTPUTS .....................................................................................................5-104 COMM PORT MONITOR .......................................................................................................5-105 GR MULTILIN USE ONLY ....................................................................................................5-105 S14 TWO-SPEED MOTOR ..............................................................................................................5-106 DESCRIPTION ........................................................................................................................5-106 SPEED2 UNDERCURRENT ...................................................................................................5-110 SPEED2 ACCELERATION ......................................................................................................5-110 6: ACTUAL VALUES OVERVIEW ...........................................................................................................................................6-1 ACTUAL VALUES MAP .........................................................................................................6-1 DESCRIPTION ........................................................................................................................6-3 A1 STATUS ...........................................................................................................................................6-4

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL TOC–V MOTOR STATUS ................................................................................................................... 6-4 LAST TRIP DATA ................................................................................................................... 6-4 ALARM STATUS .................................................................................................................... 6-6 START BLOCKS ..................................................................................................................... 6-8 DIGITAL INPUTS ................................................................................................................... 6-8 REAL TIME CLOCK ............................................................................................................... 6-9 LOSS OF COMMUNICATIONS .............................................................................................. 6-9 NETWORK STATUS .............................................................................................................. 6-9 A2 METERING DATA ........................................................................................................................ 6-11 CURRENT METERING ........................................................................................................... 6-11 TEMPERATURE ...................................................................................................................... 6-12 VOLTAGE METERING ........................................................................................................... 6-13 SPEED .................................................................................................................................... 6-13 POWER METERING .............................................................................................................. 6-14 DEMAND METERING ............................................................................................................ 6-15 ANALOG INPUTS .................................................................................................................. 6-15 PHASORS .............................................................................................................................. 6-16 A3 LEARNED DATA .......................................................................................................................... 6-27 MOTOR STARTING ............................................................................................................... 6-27 AVERAGE MOTOR LOAD ..................................................................................................... 6-27 RTD MAXIMUMS ................................................................................................................. 6-28 ANALOG INPUT MIN/MAX ................................................................................................. 6-29 A4 MAINTENANCE ........................................................................................................................... 6-30 TRIP COUNTERS ................................................................................................................... 6-30 GENERAL COUNTERS .......................................................................................................... 6-31 TIMERS .................................................................................................................................. 6-32 A5 EVENT RECORDER ..................................................................................................................... 6-33 EVENT 01 TO EVENT 256 .................................................................................................. 6-33 A6 PRODUCT INFO .......................................................................................................................... 6-36 469 MODEL INFORMATION ............................................................................................... 6-36 CALIBRATION INFORMATION .............................................................................................. 6-36 DIAGNOSTICS .................................................................................................................................... 6-37 DIAGNOSTIC MESSAGES ..................................................................................................... 6-37 FLASH MESSAGES ................................................................................................................ 6-38 7: TESTING OVERVIEW ........................................................................................................................................... 7-1 TEST SETUP .......................................................................................................................... 7-1 HARDWARE FUNCTIONAL TESTING ......................................................................................... 7-3 PHASE CURRENT ACCURACY TEST .................................................................................... 7-3 VOLTAGE INPUT ACCURACY TEST ..................................................................................... 7-3 GROUND AND DIFFERENTIAL ACCURACY TEST ............................................................... 7-4 GE DIGITAL ENERGY 50:0.025 GROUND ACCURACY TEST ......................................... 7-5 RTD ACCURACY TEST ......................................................................................................... 7-5 DIGITAL INPUTS AND TRIP COIL SUPERVISION ................................................................ 7-7 ANALOG INPUTS AND OUTPUTS ........................................................................................ 7-8 OUTPUT RELAYS .................................................................................................................. 7-10 ADDITIONAL FUNCTIONAL TESTING ....................................................................................... 7-11 OVERLOAD CURVE TEST ..................................................................................................... 7-11 POWER MEASUREMENT TEST ............................................................................................ 7-11 UNBALANCE TEST ................................................................................................................ 7-12 VOLTAGE PHASE REVERSAL TEST ...................................................................................... 7-13 SHORT CIRCUIT TEST .......................................................................................................... 7-14

TABLE OF CONTENTS 8: APPENDIX TWO-PHASE CT CONFIGURATION ............................................................................................8-1 DESCRIPTION ........................................................................................................................8-1 COOL TIME CONSTANTS ...............................................................................................................8-4 SELECTION OF COOL TIME CONSTANTS ...........................................................................8-4 CURRENT TRANSFORMERS .......................................................................................................... 8-6 GROUND FAULT CTS FOR 50:0.025 A CT ....................................................................8-6 GROUND FAULT CTS FOR 5 A SECONDARY CT .............................................................8-8 PHASE CTS ...........................................................................................................................8-8 EU DECLARATION OF CONFORMITY ........................................................................................8-10 EU DECLARATION OF CONFORMITY .................................................................................8-10 CHANGE NOTES ................................................................................................................................8-11 REVISION HISTORY ..............................................................................................................8-11 CHANGES TO THE 469 MANUAL ......................................................................................8-11 GE WARRANTY ..................................................................................................................................8-16 WARRANTY ...........................................................................................................................8-16 I: INDEX

1–1 469 Motor Management Relay Chapter 1: Getting Started GE Grid Solutions Getting Started 1.1 Important Procedures 1.1.1 Cautions and Warnings Please read this chapter to guide you through the initial setup of your new relay. Note Before attempting to install or use the relay, it is imperative that all WARNINGS and CAUTIONS in this manual are reviewed to help prevent personal injury, equipment damage, and/or downtime. Note 1.1.2 Inspection Checklist • Open the relay packaging and inspect the unit for physical damage. • View the rear nameplate and verify that the correct model has been ordered. • Ensure that the following items are included: – Instruction Manual – GE EnerVista CD (includes software and relay documentation) – mounting screws • For product information, instruction manual updates, and the latest software updates, please visit the GE Grid Solutions website at http://www.gegridsolutions.com. NOTE Note If there is any noticeable physical damage, or any of the contents listed are missing, please contact GE Grid Solutions immediately.

CHAPTER 1: GETTING STARTED 1.1.3 Manual Organization Reading a lengthy instruction manual on a new product is not a task most people enjoy. To speed things up, this introductory chapter provides a step-by-step tutorial for a simple motor application. Important wiring considerations and precautions discussed in Electrical Installation on page 3–11 should be observed for reliable operation. Detailed information regarding accuracy, output relay contact ratings, and so forth are detailed in Specifications on page 2–6. The remainder of this manual should be read and kept for reference to ensure maximum benefit from the 469 Motor Management Relay. For further information, please consult your local sales representative or the factory. Comments about new features or modifications for your specific requirements are welcome and encouraged. settings and actual values are indicated as follows in the manual: A3 LEARNED DATA  AVERAGE MOTOR LOAD  AVERAGE MOTOR LOAD LEARNED This ‘path representation’ illustrates the location of an specific actual value or settings with regards to its previous menus and sub-menus. In the example above, the AVERAGE MOTOR LOAD LEARNED actual value is shown to be an item in the AVERAGE MOTOR LOAD sub- menu, which itself is an item in the A3 LEARNED DATA menu, which is an item of ACTUAL VALUES. Sub-menu levels are entered by pressing the MESSAGE  or ENTER key. When inside a submenu, the  MESSAGE or ESCAPE key returns to the previous sub-menu. The MESSAGE  and MESSAGE  keys are used to scroll through the settings in a sub-menu. The display indicates which keys can be used at any given point.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–3 1.2 Using the Relay 1.2.1 Menu Navigation The relay has three types of display messages: actual value, settings, and target messages. A summary of the menu structure for settings and actual values can be found at the beginning of chapters 5 and 6, respectively. Settings are programmable settings entered by the user. These types of messages are located within a menu structure that groups the information into categories. Navigating the menu structure is described below. Actual values include the following information: 1. Motor and System Status: a. Motor status either stopped, starting, or running. It includes values such as motor load, thermal capacity used, motor speed, and instantaneous values of power system quantities. b. The status of digital inputs. c. Last trip information, including values such as cause of last trip, time and date of trip, motor speed and load at the time of trip, pre-trip temperature measure- ments, pre-trip analog inputs values, and pre-trip instantaneous values of power system quantities. d. Active alarms. e. Relay date and time. f. Present blocking conditions. g. General system status indication including the status of output relays, active pickup, alarm and trip conditions. 2. Metering Data: a. Instantaneous current measurements including phase, differential, unbalance, ground, average, and motor load. b. RTD Temperatures including hottest RTDs. c. Instantaneous phase to phase and phase to ground voltages (depending on the VT connections), average voltage, and system frequency. d. Motor Speed e. Power Quantities including apparent, real and reactive power. f. Current and power demand including peak values. g. Analog inputs h. Vector information. 3. Motor Learned Data: a. Learned and last acceleration time. b. Learned and last starting current.

CHAPTER 1: GETTING STARTED c. Learned and last starting capacity. d. Average motor load. 4. Maintenance data. This is useful statistical information that may be used for preventive maintenance. It includes: a. Trip counters b. General counter such as number of motor starts, number of emergency restarts, number of starter operations, digital counter for other purposes not listed above. c. Timers such as motor running hours, time between starts timer, and five start timers used to calculate the average start time of the motor. 5. RTD Learned Data, which includes the maximum temperature measured by each of the 12 RTDs. 6. Event recorder downloading tool. 7. Product information including model number, firmware version, additional product information, and calibration dates. 8. Oscillography downloading tool. Alarm, trip conditions, diagnostics, and system flash messages are grouped under Target Messages.  Press the MENU key to access the header of each menu, which will be displayed in the following sequence: To access settings,  Press the MENU key until the display shows the header of the Settings menu.  Press the MESSAGE  or ENTER key to display the header for the first Settings page. The Settings pages are numbered, have an ‘S’ prefix for easy identification and have a name which provides a general idea of the settings available in that page. Pressing the MESSAGE  and MESSAGE  keys will scroll through all the available Settings page headers. Settings page headers look as follows: 1. SETPOINTS Press [] for more 2. ACTUAL VALUES Press [] for more 3. TARGET MESSAGES Press [] for more  SETPOINTS [] S1 469 SETUP

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–5 To enter a given Settings page,  Press the MESSAGE  or ENTER key.  Press the MESSAGE  or MESSAGE  keys to scroll through sub- page headers until the required message is reached. The end of a page is indicated by the message END OF PAGE. The beginning of a page is indicated by the message TOP OF PAGE. To access actual values,  Press the MENU key until the display shows the header of the actual values menu.  Press the MESSAGE  or ENTER key to display the header for the first actual values page. The actual values pages are numbered, have an ‘A’ prefix for easy identification and have a name, which gives a general idea of the information available in that page. Pressing the MESSAGE  or MESSAGE  keys will scroll through all the available actual values page headers. Actual values page headers look as follows: To enter a given actual values page,  Press the MESSAGE  or ENTER key.  Press the MESSAGE  or MESSAGE  keys to scroll through sub- page headers until the required message is reached. The end of a page is indicated by the message END OF PAGE. The beginning of a page is indicated by the message TOP OF PAGE. Similarly, to access additional sub-pages,  Press the MESSAGE  or ENTER key to enter the first sub-page,  Press the MESSAGE  or MESSAGE  keys to scroll through the available sub-pages, until the desired message is reached. The process is identical for both settings and actual values. The following procedure illustrates the key sequence to access the Current Demand actual values.  Press the MENU key until you reach the actual values main menu.  Press MESSAGE  or ENTER key to enter the first actual values page.  Press the MESSAGE  or MESSAGE  key to scroll through pages, until the A2 METERING DATA page appears.  ACTUAL VALUES [] A1 STATUS  ACTUAL VALUES [] A2 METERING DATA

CHAPTER 1: GETTING STARTED  Press the MESSAGE  or ENTER key to display the first sub-page heading for the Metering Data actual values page: Pressing the MESSAGE  or MESSAGE  keys will scroll the display up and down through the sub-page headers. Pressing the  MESSAGE or ESCAPE key at any sub-page heading will return the display to the heading of the corresponding settings or actual value page. Pressing it again, will return the display to the main menu header.  Press the MESSAGE  key until the DEMAND METERING sub-page heading appears. At this point, pressing MESSAGE  or ENTER key will display the messages under this sub-page. If instead you press the MESSAGE  key, it will return to the previous sub- page heading. In this case, When the symbols  and [] appear on the top line, it indicates that additional sub- pages are available and can be accessed by pressing the MESSAGE  or ENTER key.  Press MESSAGE  or ENTER while at the Demand Metering sub- page heading to display the following:  Press  MESSAGE key to return to the Demand Metering sub-page heading.  Press the MESSAGE  key to display the next actual value of this sub-page. Actual values and settings messages always have a colon separating the name of the value and the actual value or settings. This particular message displays the current demand as measured by the relay. The menu path to this value is shown as A2 METERING DATA  DEMAND METERING  CURRENT DEMAND. Settings and actual values messages are referred to in this manner throughout the manual. For example, the A3 LEARNED DATA  MOTOR STARTING  LEARNED ACCELERATION TIME path representation describes the following key-press sequence:  Press the MENU key until the actual value header appears on the display, MESSAGE  or ENTER key,  CURRENT [] METERING  DEMAND [] METERING  POWER [] METERING CURRENT DEMAND: 0 Amps

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–7  Press the MESSAGE  key until the A3 LEARNED DATA message is displayed.  Press the MESSAGE  or ENTER key to display MOTOR STARTING message.  Press the MESSAGE  or ENTER key to reach the LEARNED ACCELERATION TIME message and the corresponding actual value.  Press the MESSAGE  key to display the next actual value message as shown below:  Press the MESSAGE  or MESSAGE  keys to scroll the display up and down through all the actual value displays in this corresponding sub-page.  Press the  MESSAGE key to reverse the process described above and return the display to the previous level.  Press the  MESSAGE key twice to return to the A3 LEARNED DATA page header. 1.2.2 Panel Keying Example The following figure gives a specific example of how the keypad is used to navigate through the menu structure. Specific locations are referred to throughout this manual by using a ‘path representation’. The example shown in the figure gives the key presses required to read the learned starting current denoted by the path A3 LEARNED DATA  MOTOR STARTING  LEARNED STARTING CURRENT.  Press the menu key until the relay displays the actual values page. LEARNED STARTING CURRENT: 0 A  MOTOR [] STARTING  ACTUAL VALUES [] A3 LEARNED DATA

CHAPTER 1: GETTING STARTED  ACTUAL VALUES [] Press the MESSAGE or ENTER key  ACTUAL VALUES [] A1 STATUS Press the MESSAGE key  ACTUAL VALUES [] A2 METERING DATA Press the MESSAGE key  ACTUAL VALUES [] A3 LEARNED DATA MESSAGE  MOTOR STARTING [] MESSAGE LEARNED ACCELERATION TIME: 0.0 s MESSAGE LEARNED STARTING CURRENT: 0 A

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–9 1.3 Changing Settings 1.3.1 Introduction There are several classes of settings, each distinguished by the way their values are displayed and edited. The relay's menu is arranged in a tree structure. Each setting in the menu is referred to as a settings, and each settings in the menu may be accessed as described in the previous section. The settings are arranged in pages with each page containing related settings; for example, all the Short Circuit Trip settings are contained within the same page. As previously explained, the top menu page of each setting group describes the settings contained within that page. Pressing the MESSAGE keys allows the user to move between these top menus. All of the 469 settings fall into one of following categories: device settings, system settings, digital input settings, output relay settings, thermal model settings, current element settings, motor starting settings, RTD temperatures settings, voltage element settings, power element settings, monitoring settings, analog input/output settings, two speed motor settings, and testing settings. NOTE Note IMPORTANT: Settings are stored and used by the relay immediately after they are entered. As such, caution must be exercised when entering settings while the relay is in service. Modifying or storing protection settings is not recommended when the relay is in service since any incompatibility or lack of coordination with other previously saved settings may cause unwanted operations. Now that we have become more familiar with maneuvering through messages, we can learn how to edit the values used by all settings classes. Hardware and passcode security features are designed to provide protection against unauthorized settings changes. Since we will be programming new settings using the front panel keys, a hardware jumper must be installed across the settings access terminals (C1 and C2) on the back of the relay case. Attempts to enter a new settings without this electrical connection will result in an error message. The jumper does not restrict settings access via serial communications. The relay has a programmable passcode settings, which may be used to disallow settings changes from both the front panel and the serial communications ports. This passcode consists of up to eight (8) numeric characters. The factory default passcode is “0”. When this specific value is programmed into the relay it has the effect of removing all settings modification restrictions. Therefore, only the settings access jumper can be used to restrict settings access via the front panel and there are no restrictions via the communications ports. When the passcode is programmed to any other value, settings access is restricted for the front panel and all communications ports. Write Access via keypad is not permitted until the passcode is entered via the keypad. Write access via communication port is not permitted until the passcode is entered via that port. That is, the passcode must be entered via the port from which access is desired.

CHAPTER 1: GETTING STARTED Entering the passcode on any communication port automatically restricts the other ports, but does not restrict the keypad. For example, entering the passcode on computer RS485 permits settings write access on computer RS485, and restricts write access on computer RS232, auxiliary RS485, and ethernet. A front panel command can disable settings access once all modifications are complete. For the communications ports, writing an invalid passcode disables access. In addition, settings access is automatically disabled on an interface if no activity is detected for thirty minutes. The EnerVista 469 Setup software incorporates a facility for programming the relay's passcode as well as enabling and disabling settings access. For example, when an attempt is made to modify a settings but access is restricted, the software will prompt the user to enter the passcode and send it to the relay before the settings is actually written to the relay. If a SCADA system is used for relay programming, it is the programmer's responsibility to incorporate appropriate security for the application. 1.3.2 The HELP Key Pressing the HELP key displays context-sensitive information about settings such as the range of values and the method of changing the settings. Help messages will automatically scroll through all messages currently appropriate. 1.3.3 Numerical Settings Each numerical settings has its own minimum, maximum, and step value. These parameters define the acceptable settings value range. Two methods of editing and storing a numerical settings value are available. The first method uses the 469 numeric keypad in the same way as any electronic calculator. A number is entered one digit at a time with the 0 to 9 and decimal keys. The left-most digit is entered first and the right-most digit is entered last. Pressing ESCAPE before the ENTER key returns the original value to the display. The second method uses the VALUE  key to increment the displayed value by the step value, up to a maximum allowed value. Likewise, the VALUE  key decrements the displayed value by the step value, down to a minimum value. For example:  Select the S2 SYSTEM SETUP  VOLTAGE SENSING  MOTOR NAMEPLATE VOLTAGE settings message.  Press the 1, 3, 8, 0, and 0 keys. The display message will change as shown. Until the ENTER key is pressed, editing changes are not registered by the relay. MOTOR NAMEPLATE VOLTAGE: 4000 V MOTOR NAMEPLATE VOLTAGE: 13800 V

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–11  Therefore, press the ENTER key to store the new value in memory. This flash message will momentarily appear as confirmation of the storing process. 1.3.4 Enumeration Settings The example shown in the following figures illustrates the keypress sequences required to enter system parameters such as the phase CT primary rating, ground CT primary rating, bus VT connection type, secondary voltage, and VT ratio. The following values will be entered: Phase CT primary rating: 600 A Motor Full Load Current: 318 A Ground CT ratings: 50/5 A Phase Differential CT: None Voltage Transformer Connection Type: Open Delta Motor Nameplate Voltage: 13800 V VT Ratio: 115:1 To set the phase CT primary rating, modify the S2 SYSTEM SETUP  CURRENT SENSING  PHASE CT PRIMARY settings as shown below.  Press the MENU key until the relay displays the Sepoints menu header. To set the phase Motor Full Load Amps FLA, modify the S2 SYSTEM SETUP  CURRENT SENSING  MOTOR FULL LOAD AMPS FLA settings as shown below.  Press the MENU key until the relay displays the Setpoints menu header. NEW SETPOINT HAS BEEN STORED 1. SETPOINTS Press [] for more Press MESSAGE  or ENTER  SETPOINTS [] S1 469 SETUP Press MESSAGE   SETPOINTS [] S2 SYSTEM SETUP Press MESSAGE  or ENTER  CURRENT [] SENSING Press MESSAGE  or ENTER PHASE CT PRIMARY: OFF Press the VALUE keys until 600 A is displayed, or enter the value directly via the numeric keypad. PHASE CT PRIMARY: 600 A Press the ENTER key to store the settings. NEW SETPOINT HAS BEEN STORED

CHAPTER 1: GETTING STARTED 1. SETPOINTS Press [] for more Press MESSAGE  or ENTER  SETPOINTS [] S1 469 SETUP Press MESSAGE   SETPOINTS [] S2 SYSTEM SETUP Press MESSAGE  or ENTER  CURRENT [] SENSING Press MESSAGE  or ENTER PHASE CT PRIMARY: 600 A Press MESSAGE  MOTOR FULL LOAD AMPS FLA: OFF Press the VALUE keys until 318 A is displayed, or enter the value directly via the numeric keypad. MOTOR FULL LOAD AMPS FLA: 318 A Press the ENTER key to store the settings. NEW SETPOINT HAS BEEN STORED

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–13 To set the ground CT ratings, modify the S2 SYSTEM SETUP  CURRENT SENSING  GROUND CT and the S2 SYSTEM SETUP  CURRENT SENSING  GROUND CT PRIMARY settings as shown below.  Press the MENU key until the relay displays the Setpoints menu header. 1. SETPOINTS Press [] for more Press MESSAGE  or ENTER  SETPOINTS [] S1 469 SETUP Press MESSAGE   SETPOINTS [] S2 SYSTEM SETUP Press MESSAGE  or ENTER  CURRENT [] SENSING Press MESSAGE  or ENTER PHASE CT PRIMARY: 600 A Press MESSAGE  MOTOR FULL LOAD AMPS FLA: 318 A Press MESSAGE  GROUND CT: 50:0.025 Press the VALUE keys until “5 A Secondary” is displayed. GROUND CT: 5 A Secondary Press the ENTER key to store the settings. NEW SETPOINT HAS BEEN STORED Press MESSAGE  GROUND CT PRIMARY: 100 A Press the VALUE keys until 50 A is displayed, or enter the value directly via the numeric keypad. GROUND CT PRIMARY: 50 A Press the ENTER key to store the settings. NEW SETPOINT HAS BEEN STORED

CHAPTER 1: GETTING STARTED To set the VT connection type and ratings, modify the S2 SYSTEM SETUP  VOLTAGE SENSING  VT CONNECTION TYPE and the S2 SYSTEM SETUP  VOLTAGE SENSING  VOLTAGE TRANSFORMER RATIO, and S2 SYSTEM SETUP  VOLTAGE SENSING  MOTOR NAMEPLATE VOLTAGE settings as shown below.  Press the MENU key until the relay displays the Setpoints menu header. If an entered settings value is out of range, the relay displays the following message: where 100 is the minimum settings value, 36000 is the maximum, and 1 is the step value. To have access to information on maximum, minimum, and step value, press the HELP key. 1. SETPOINTS Press [] for more Press MESSAGE  or ENTER  SETPOINTS [] S1 469 SETUP Press MESSAGE   SETPOINTS [] S2 SYSTEM SETUP Press MESSAGE  or ENTER  CURRENT [] SENSING Press MESSAGE   VOLTAGE [] SENSING Press MESSAGE  or ENTER VT CONNECTION TYPE: None Press the VALUE keys until “Open Delta” is displayed. VT CONNECTION TYPE: Open Delta Press the ENTER key to store the settings. NEW SETPOINT HAS BEEN STORED Press MESSAGE  ENABLE SINGLE VT: OPERATION: OFF Press MESSAGE  VOLTAGE TRANSFORMER RATIO: 35.00 : 1 Press the VALUE keys until 115.00 : 1 is displayed, or enter the value directly via the numeric keypad. VOLTAGE TRANSFORMER RATIO: 115.00 : 1 Press the ENTER key to store the settings. NEW SETPOINT HAS BEEN STORED Press MESSAGE  MOTOR NAMEPLATE VOLTAGE: 4000 V Press the VALUE keys until 13800 V is displayed, or enter the value directly via the numeric keypad. MOTOR NAMEPLATE VOLTAGE: 13800 V Press the ENTER key to store the settings. NEW SETPOINT HAS BEEN STORED OUT-OF-RANGE! ENTER: 100-36000 by 1 “100-36000” indicates the range and “1” indicates the step value

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–15 1.3.5 Output Relay Settings Output relays (Trip or Alarm) can be associated to the Auxiliary Relays 2 and 3. Each can be selected individually, or in combination, in response to customer specific requirements, which can be initiated by any protection element or function, whose ASSIGN RELAYS settings has them selected.  Select the S6 CURRENT ELEM.  SHORT CIRCUIT TRIP  ASSIGN TRIP RELAYS settings message. If an application requires the short circuit protection element to operate the Auxiliary Output 3 relay,  Select this output relay by pressing the value key until the desired combination appear in the display.  Press the ENTER key to store this change into memory. As before, confirmation of this action will momentarily flash on the display. 1.3.6 Text Settings Text settings have data values which are fixed in length but user-defined in character. They may be composed of uppercase letters, lowercase letters, numerals, and a selection of special characters. The editing and storing of a text value is accomplished using the decimal [.], VALUE, and ENTER keys. For example:  Move to message S3 DIGITAL INPUTS  ASSIGNABLE INPUT 1  INPUT 1 FUNCTION, and scrolling with the VALUE keys, select “General Sw. A”. The relay will display the following message:  Press the MESSAGE  key to view the next settings, SWITCH NAME. The name of this user-defined input will be changed in this example from the generic “General Sw. A” to something more descriptive. If an application is to be using the relay as a station monitor, it is more informative to rename this input “Station Monitor”. ASSIGN TRIP RELAYS: Trip ASSIGN TRIP RELAYS: Trip & Auxiliary3 NEW SETPOINT HAS BEEN STORED INPUT 1 FUNCTION: General Sw. A

CHAPTER 1: GETTING STARTED  Press the decimal [.] key to enter the text editing mode. The first character will appear underlined as follows:.  Press the VALUE keys until the character “S” is displayed in the first position.  Press the decimal [.] key to store the character and advance the cursor to the next position.  Change the second character to a “t” in the same manner.  Continue entering characters in this way until all characters of the text “Stn. Monitor” are entered. Note that a space is selected like a character. If a character is entered incorrectly, press the decimal [.] key repeatedly until the cursor returns to the position of the error. Re-enter the character as required.  Once complete, press the ENTER key to remove the solid cursor and view the result. Once a character is entered, by pressing the ENTER key, it is automatically saved in flash memory, as a new settings. SWITCH NAME: General Sw. A SWITCH NAME: Stn. Monitor

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–17 1.4 Application Example 1.4.1 Description The 469 Motor Management Relay contains many features designed to accommodate a wide range of motor management applications. This chapter is provided to guide you, the first-time user, through a real-world application. The following is typical example of how to determine the relay settings for a specific motor that has been applied conservatively. This is only an example and may not address all issues relating to your specific application. It is recommended that your local protection engineer determine the settings for your motor protective relaying application. Refer to following figures for schematic diagrams related to this example. Important points to keep in mind before developing settings for any multifunction numerical device like the 469 Motor Management Relay: • Gather system data, including, but not limited to: – CT primary and secondary ratings for all the CTs used to feed the relay – motor name plate data – motor operating curves (typical set shown below) FIGURE 1–1: Typical Motor Curves 806553A1.CDR 1.000 10.000 100.000 1000.000 0 500 1,000 1,500 2,000 2,500 Current (Amps) Time (sec.)

CHAPTER 1: GETTING STARTED – VT primary and secondary ratings – System frequency – System phase sequence • Define the protection elements that will be enabled. Prepare a list of protection functions including the following information. By default, all the protection functions must be assumed “Disabled”: – Pickup parameter – Operating curve, if applicable – Time dial or multiplier – Any additional intentional time delay – Directionality, if applicable • Define how many output contacts will be energized in response to a given protection function. Note that the 469 relay can be programmed to Trip or Alarm and, at the same time, to energize one, a combination, or all the 2 auxiliary relays during the process. • Define if the output relays will be set as failsafe type. • Define if the 469 relay will be used to start the motor. If so, gather information on the required conditions to execute the command. • Define if the 469 will be involved in the motor starting process, particularly on reduced voltage start applications. • Define if the 469 will be applied a multi speed applications. • Define if the relay will be used to monitor the status of the starter or breaker. It is strongly recommended that the 469 be always programmed to monitor the status of the disconnecting device, by means of a dry contact connected to one of the digital inputs of the relay. Use an auxiliary contact from the breaker or starter either a normally open contact, 52a, which is normally in open position when the disconnecting device is open, or a normally closed contact, 52b, which is in close position when the breaker or starter is open. • If the 469 will be used to respond to digital inputs, record the following information: – Digital Input name – Condition by which the digital input would be considered asserted – Function that the digital input will initiate within the 469 • If the 469 will be used to perform monitoring functions and act upon certain conditions, record information such as: – minimum and maximum values – alarm and trip values – time delays • It is important to familiarize yourself with the relay protection and control functions before setting up the relay.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–19 To begin, simply power on the unit and follow the instructions in this tutorial. Assume the following system characteristics and that the 469 settings are unaltered from their factory default values. Refer to the following figures for schematics related to this application example.

CHAPTER 1: GETTING STARTED FIGURE 1–2: Typical Relay Connection Diagram 28 MOTOR BEARING 2 36 32 34 35 33 30 31 29 STATOR STATOR STATOR MOTOR BEARING 1 PHASE C - 2 PHASE C - 1 PHASE B - 2 20 24 26 27 25 22 23 21 16 18 19 17 15 14 13 STATOR STATOR STATOR PHASE B - 1 PHASE A - 2 PHASE A - 1 5 9 11 12 10 7 8 6 1 3 4 2 + Comp - Shld Comp Shld - + + - Shld Comp - + Comp Shld Shld Comp + - Comp Shld - + + - Shld Comp Comp Shld - + + - Shld Comp AMBIENT MOTOR 806554A2.CDR

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–21 FIGURE 1–3: Typical Control Diagram 806552A2.CDR COMMON

CHAPTER 1: GETTING STARTED FIGURE 1–4: Typical Breaker Control Diagram 806551A1.CDR

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–23 FIGURE 1–5: Typical Relay Control Diagram • Power System Data a) System: 3Φ, 4 wire b) Frequency: 60 Hz c) Line voltage: 600 V • Motor Data As per the following motor data sheet information: FIGURE 1–6: Motor Data Sheet Information 806555A2.CDR COMMON

CHAPTER 1: GETTING STARTED • Motor Operating Curves Motor operating curves as shown below: FIGURE 1–7: Motor Operating Curves for Application Example • Control System Requirements – All protection elements trip the breaker – Breaker position monitoring via 52b contact only – Only current metering is required – Serial communication remote start from RTU – Alarm after 100 s delay from station monitor. This is normally used to signal the remote center when someone has gained access to the substation. • Contact Outputs – Trip and close to breaker control circuit (Trip and Auxiliary2 relays) – Relay failure alarm to RTU (self-test warning relay, no programming required) – Alarm contact (setup in General Sw. A for “Station Monitor”) – No data communications to other equipment.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–25 • RTDs The motor is fitted with the following RTDs: – RTD type: 100 Ω Platinum – 6 Stator RTDs, 2 per phase – 2 Bearing RTDs – 1 Ambient RTD Use the above data to set the output relays to achieve breaker control; to set digital inputs for breaker status, remote operations, remote status, and alarm indication. Assume that the communications between the station and the master control center will be done by the RTU. Alarms, status indication, and breaker commands will be hard-wired from the relay to the RTU. Similar information could be exchanged between the RTU and the relay via an RS485 or RS422 Serial Link using the Modbus RTU protocol. Refer to GE Publication GEK- 106491C: 469 Communications Guide for additional information. 1.4.2 Instrument Transformer Data • Voltage Transformers – 2 × Open Delta connected, ratio = 600:120 V – Motor System Voltage = 575 V • Phase CTs The phase CTs should be chosen such that the FLC is 50% to 100% of CT primary. Since the FLC is 347.5A a 350:5, or 400:5 CT may be chosen; 400:5 is a standard available size and so would probably be selected. • Ground CT For high resistive grounded systems, sensitive ground detection is possible with the 50:0.025 CT. Use a 1 A or 5 A secondary CT on solidly grounded or low resistive grounded systems where the fault current is much higher. If a residual connection is chosen, pickup levels and timers must be set with respect to the acceleration time. The chosen zero-sequence CT must be able to handle all potential fault levels without saturating. In this example, 50:5A CT is selected. • Motor FLC Set the motor full load current to 348 A, as specified by the data sheets. Use the above data to set the relay system parameters, such as CT and VT connections, VT secondary voltage, and CT and VT primary to secondary ratios. 1.4.3 Motor Protection • Overload Pickup The overload pickup is set to the maximum allowed by the service factor of the motor. Since this motor has RTDs and the relay will be using the RTD bias feature for enhanced protection, set the overload pickup to the highest setting of 1.25 x FLC for the motor service factor of 1.15. If service factor is unknown, assume 1.0.

CHAPTER 1: GETTING STARTED • Overload Curve Select the standard overload curve to be just below the cold thermal limit to give maximum process uptime, without compromising protection. The best fitting curve is curve 7 (see figure below)

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–27 FIGURE 1–8: Overload Curve Matching (Example) 469 Motor Management Relay STANDARD OVERLOAD CURVES x1 x15 100000 10000 1000 100 10 1.00 0.10 1.00 MULTIPLE OF FULL LOAD AMPS TIME IN SECONDS 10 100 1000 806804A5.CDR NOTE: LOG CHART SCALED AS PER: KEUFFEL & ESSER TIME-CURRENT CHARACTERISTIC PAPER GE ORDER #: GES10083 THIS DRAWING IS PROPRIETARY INFORMATION DRAWN BY/DATE: ENG. APP./DATE: MFG. APP./DATE: SCALE: DWG. SIZE: B DWG. No.: PART No.: REV. REV DATE ECO# DWN APP DESCRIPTION A4 06/98 469-096 469-202 BA JN GE ORDER NUMBER ADDED 469 Motor Management Relay STANDARD OVERLOAD CURVES N/A A5 JA/09/20/96 X X 1:1 806804A5.CDR TEL: (905)294-6222 FAX: (905)201-2098 INT: http://www.ge.com/edc/pm 215 ANDERSON AVENUE, MARKHAM, ONT., CANADA, L6E 1B3 A5 12/99 WL CD Deleted “Multilin” from logo Deleted “SR” from Heading

CHAPTER 1: GETTING STARTED • Short Circuit Trip The short circuit trip should be set above the maximum locked rotor current but below the short circuit current of the fuses. The data sheets indicate a maximum locked rotor current of 630% FLC or 6.3 × FLC. A setting of 7 × FLC with a instantaneous time delay will be ideal but nuisance tripping may result due to the asymmetrical starting currents and DC offset. If asymmetrical starting currents limits the starting capability, set the S/C level higher to a maximum of 11 × FLC to override this condition (1.7 × 6.3 = 11.7 where 1.7 is the maximum DC offset for an asymmetrical current). • Ground Fault Unfortunately, there is not enough information to determine a ground fault setting. These settings depend on the following information: 1. The ground fault current available. 2. System grounding; for example, high resistive grounding or solidly grounded 3. Ground fault CT used. 4. Ground fault connection; for example, zero-sequence or residual connection For the purpose of this example, assume a fault current of 10 Amps or 10/50 = 0.2 x CT, no intentional time delay. • Unbalance Alarm and Trip The unbalance settings are determined by examining the motor application and motor design. The heating effect of unbalance will be protected by enabling unbalance input to thermal memory; described in details in Chapter 5, Thermal Model. A setting of 10% for the unbalance alarm with a delay of 10 seconds would be appropriate and the trip can be set to 25% with a delay of 5 seconds. • Stopped and Running Cool Times The motor manufacturer usually supplies this information as either cooling times, or cooling time constants not provided in the data sheet issued with this motor. Since RTDs are present and wired to the relay, biasing of the thermal model will be used so it is not critical to have these cooling times from the manufacturer. The default values of motor cooling time constants are 15 and 30 minutes, and can be used for the running and stopped cool times respectively. If the manufacturer provides cooling times instead, the approximate values of the cooling time constants is 1/5th the cooling times provided by the manufacturer. • Acceleration Trip This settings should be set higher than the maximum starting time to avoid nuisance tripping when the voltage is lower or for varying loads during acceleration. If reduced voltage starting is used, according to the acceleration curves, a setting of 18 seconds would be appropriate, or if across the line starting is used, a setting of 13 seconds would be appropriate. • Enable Start Inhibit This function will limit starts when the motor is already hot. The relay learns the amount of thermal capacity used at start. If the motor is hot, thus having some thermal capacity used, the relay will not allow a start if the available thermal capacity is less than the required thermal capacity for a start.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–29 • Starts/Hour When available, set starts/Hour to the number of cold starts as per the data sheet. • Time Between Starts In some cases, the motor manufacturer will specify the time between motor starts. This information is not given so this feature can be left disabled. If the information is available, the time provided on the motor data sheets should be programmed. • Stator RTDs Set the RTD trip level at or below the maximum temperature rating of the insulation. The data available shows class F insulation (temperature rating of 155°C), therefore the Stator RTD Trip level should be set to between 140°C to 155°C, with 155°C being maximum. The RTD alarm level should be set to provide a warning that the motor temperature is rising. For this example, 135°C would be appropriate since this motor is designed for class B rise, 130°C is it's normal hot operating temperature. • Bearing RTDs The Bearing RTD alarm and trip settings will be determined by evaluating the temperature specification from the bearing manufacturer. • Unbalance bias of thermal capacity Enable the Unbalance Bias of Thermal Capacity so that the heating effect of unbalance currents is added to the Thermal Capacity Used. • Unbalance bias K factor The K value is used to calculate the contribution of the negative-sequence current flowing in the rotor due to unbalance. It is defined as: (EQ 1.1) where: Rr2 = rotor negative-sequence resistance Rr1 = rotor positive-sequence resistance. A formula based on empirical data states that K is equal to 230 divided by the per-unit locked rotor current squared. From the data sheet, the locked rotor amps = 631% FLA or 6.31 × FLA. Therefore, (EQ 1.2) • Hot/cold curve ratio The hot/cold curve ratio is calculated by simply dividing the hot safe stall time by the cold safe stall time or use the motor thermal limits curve. For this example, both are available. Using the data sheets the, safe stall time H/C or hot/cold curve ratio is given as 16/18 = 0.89 • Enable RTD Biasing This will enable the temperature from the Stator RTD sensors, to be included in the calculations of thermal capacity. This model determines the thermal capacity used based on the temperature of the Stator and is separate from the overload model for calculating thermal capacity used. K Rr2 Rr1 -------- = K 230 (per-unit locked rotor amps)2 ------------------------------------------------------------------------ 230 6.312 ------------- ≈ 6 = =

CHAPTER 1: GETTING STARTED RTD biasing is a back up protection element, which accounts for such things as loss of cooling or unusually high ambient temperature. This measured temperature is used to bias or modify the thermal capacity value stored in the relay. RTD BIAS MINIMUM: Set to 40°C, which is the ambient temperature, obtained from the data sheets. RTD BIAS MID POINT: The center point temperature is set to the motor's hot running temperature and is calculated as follows: Temperature Rise of Stator + Ambient Temperature The temperature rise of the stator is 80°C (class F rise by resistance) + 10% hot spot allowance, obtained from the data sheets. Therefore, the RTD Center point temperature is set to 90°C + 40°C or 130°C. RTD BIAS MAXIMUM: This settings is set to the rating of the insulation or slightly less. A class F insulation is used in this motor which is rated at 155°C, so the setting should be “155”. FIGURE 1–9: RTD Bias Example 1 You should now be familiar with maneuvering through and editing settings messages. As such, we will now limit our discussion to just the values that must be programmed to meet the requirements of the example application. Any settings not explicitly mentioned should be left at the factory default value. 1.4.4 S2 System Settings The S2 settings page contains settings for entering the characteristics of the equipment on the motor electrical system. In our example, these characteristics are specified under the Power System Data and Instrument Transformer Data headings in the previous sub- section. From this information and the resulting calculations, program the page S2 settings as indicated. 806550A1.CDR

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–31 For current transformers, make the following change in the S2 SYSTEM SETUP  CURRENT SENSING settings page: PHASE CT PRIMARY: “400 A” MOTOR FULL LOAD AMPS FLA: “348 A” GROUND CT: “5 A Secondary” GROUND CT PRIMARY: “50 A” PHASE DIFFERENTIAL CT: “None” ENABLE 2-SPEED MOTOR PROTECTION: “No” For current transformers, make the following change in the S2 SYSTEM SETUP  VOLTAGE SENSING settings page: VT CONNECTION TYPE: “Open Delta” ENABLE SINGLE VT OPERATION: “Off” VOLTAGE TRANSFORMER RATIO: “5 : 1” (for a 600 V system, 600/120 V = 5, where 5 is the VT ratio) MOTOR NAMEPLATE VOLTAGE: “575 V” The 469 Motor Management Relay was designed with the ability to display primary system values. Current and voltage measurements are performed at secondary levels, which the relay transforms to primary values using CT and VT ratios, system voltage, as well as the nominal secondary values. In the case of the phase CTs, configuring the relay for current measurements is simple and it only requires inputting the CT primary current. Phase CT inputs can be 1 A or 5 A, and they must be specified when the relay is purchased. There is more flexibility with regards to Ground CT inputs, as well as VT inputs, where nominal values are not required ahead of time, before the relay is ordered; therefore more settings are needed to set the relay for measurements. Make the following change in the S2 SYSTEM SETUP  POWER SYSTEM settings page to reflect the power system: NOMINAL SYSTEM FREQUENCY: “60 Hz” SYSTEM PHASE SEQUENCE: “ABC” The example calls for remote control via serial communications, received from the master station, through the RTU. Motor starting and stopping is possible via any of the three 469 communication ports. When a start command is issued, the auxiliary relay assigned for starting control is activated for 1 second to complete the close coil circuit for a breaker application, or complete the start control circuit for a contactor application. A contactor sealing contact would be used to maintain the circuit. For details on issuing a start or stop command via communications, refer to the GE Publication GEK-106491: 469 Communications Guide. Make the following changes to the communications settings in the S2 SYSTEM SETUP  SERIAL COMM. CONTROL page. SERIAL COMMUNICATION CONTROL: “On” ASSIGN START CONTROL RELAYS: “Auxiliary2” The Auxiliary 2 relay will be used to start the motor. Note that this auxiliary relay can not be used for any other application.

CHAPTER 1: GETTING STARTED Once the signal is received the motor will be started across the line. Therefore, the following settings are left with their default values. In the S2 SYSTEM SETUP  REDUCE VOLTAGE STARTING settings page: REDUCE VOLTAGE STARTING: “Off” ASSIGN CONTROL RELAYS: “Auxiliary3” (available for other use) TRANSITION ON: “Current Only” ASSIGN TRIP RELAYS: “Trip” REDUCE VOLTAGE START LEVEL: “100% FLA” REDUCE VOLTAGE START TIMER: “200 s” 1.4.5 S3 Digital Inputs Settings The S3 settings page is for entering the characteristics of the digital inputs. In our example, these characteristics are specified under the Control System Requirements heading. Program the S3 settings as indicated. Some of the functions assigned to the digital inputs of the 469 Motor Management Relay are pre-defined functions, which can be selected from a list. There are four user-defined functions, called General Switch A to D, associated to the assignable inputs. Set these inputs to operate output relays, with or without delay, responding to the status change of dry contacts connected to the digital input terminals. Use the following procedure to set these functions:  Change the default names to meaningful values so they can be easily identified, either via the LCD or when reviewing event reports.  Identify their asserted logic.  Define the functionality of the digital inputs. All the other assignable input functions are pre-defined, and when selected, they can be set to generate Trip or Alarms, as well as energize auxiliary outputs as needed. For breaker position monitoring, set the following pre-defined Digital Input called “Starter Status”. As per the information provided above, a 52b contact will be used, and must be connected between terminals D16 to D23: S3 DIGITAL INPUTS  STARTER STATUS  STARTER STATUS SW: “Starter Auxiliary b” To set the relay to monitor access to the station, use Assignable Input 1 as “General Switch A”, as follows. To define the digital input, enter the following data in the S3 DIGITAL INPUTS  ASSIGNABLE INPUT 1 settings page. To identify the digital input: INPUT 1 FUNCTION: “General Sw. A” SWITCH NAME: “Stn. Monitor” To define the asserted logic: GENERAL SWITCH A: “Normally Open” To define the functionality: BLOCK INPUT FROM START: “0 s” GENERAL SWITCH A ALARM: “Latched” ASSIGN ALARM RELAYS: “Alarm”

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–33 GENERAL SWITCH A ALARM DELAY: “5.0 s” GENERAL SWITCH A EVENTS: “On” so this event is registered. GENERAL SWITCH A TRIP: “Off” If the relay will not be used to trip the motor when someone gains unauthorized access to the station, the next settings should be left at their default values: GENERAL SWITCH A TRIP: “Off” ASSIGN TRIP RELAYS: “Trip” GENERAL SWITCH A TRIM DELAY: “5.0 s” 1.4.6 S5 Thermal Model The S5 Thermal Model settings page contains settings for entering settings related to protection of the motor during the starting process as well as during normal operation. As per the information provided above, the settings for the Thermal Model are entered as follows in the SELECT CURVE STYLE: “Standard” OVERLOAD PICKUP: “1.25 x FLA” ASSIGN TRIP RELAYS: “Trip” UNBALANCE BIAS K FACTOR: “6” COOL TIME CONSTANT RUNNING: “15 min.” COOL TIME CONSTANT STOPPED: “30 min.” HOT/COLD SAFE STALL RATIO: “0.89” ENABLE RTD BIASING: “Yes” RTD BIAS MINIMUM: “40°C” – ambient temperature RTD BIAS CENTER POINT: “130°C” – center value RTD BIAS MAXIMUM: “155°C” – maximum value THERMAL CAPACITY ALARM: “Unlatched” – recommended for early warning to take corrective actions and prevent the interruption of the process. ASSIGN ALARM RELAYS: “Alarm” – the Alarm contact could be use for local indication, or to send a local signal to reduce load, before a trip is issued. THERMAL CAP. ALARM LEVEL: “80%” THERMAL CAPACITY ALARM EVENT: “Yes” – captures event in the event report. As well, select the overload curve for the Thermal model with the following settings in the S5 THERMAL MODEL  OVERLOAD CURVE SETUP menu: STANDARD OVERLOAD CURVE NUMBER: “7” 1.4.7 S6 Current Elements The S6 Current Elements settings page contains settings for entering protection element characteristics. In our example, these characteristics are specified under Motor Protection heading. From this data and the resulting calculations, program the S6 settings page as indicated. When setting the relay for the first time, other settings not listed in this example should be left disabled.

CHAPTER 1: GETTING STARTED For the Short Circuit element, enter the following values in the S6 CURRENT ELEMENTS  SHORT CIRCUIT TRIP page. Press the MESSAGE  key after each settings is entered to move to the next message. SHORT CIRCUIT TRIP: “Latched” SHORT CIRCUIT TRIP OVEREACH FILETER: “Off” - no filtering of DC component is required (refer to Short Circuit Trip on page 5–60 for additional information) ASSIGN TRIP RELAYS: “Trip” SHORT CIRCUIT TRIP PICKUP: “11.7” INTENTIONAL S/C TRIP DELAY: “0 ms” - Instantaneous trip is required. SHORT CIRCUIT TRIP BACKUP: “On” - if the main disconnect device does not respond to the trip command, a second signal will be initiated via an auxiliary relay to generate a bus shot down; in most cases, the second trip command energizes a lock out relay (86) which is used to trip the upstream breakers ASSIGN BACKUP RELAYS: “Auxiliary3” SHORT CIRCUIT TRIP BACKUP DELAY: “200 ms” - this time must be greater than the total time required to trip the main breaker plus a margin Since the specifications do not indicate values for the following features, they must be left “Off”: OVERLOAD ALARM: “Off” MECHANICAL JAM: “Off” UNDERCURRENT: “Off” PHASE DIFFERENTIAL: “Off” For the Ground Fault element, enter the following values in the S6 CURRENT ELEMENTS  GROUND FAULT page. Press the MESSAGE  key after each settings is entered to move to the next message. GROUND FAULT OVERREACH FILETER: “Off” – no filtering of DC component is required (refer to Ground Fault on page 5–65 for additional information) GROUND FAULT ALARM: “Off” – default setting, no Alarm is required ASSIGN ALARM RELAYS: “Alarm” – default setting GROUND FAULT ALARM PICKUP: “0.10 x CT” – default setting INTENTIONAL GF ALARM DELAY: “0 ms” – default setting GROUND FAULT ALARM EVENTS: “Off” – default setting GROUND FAULT TRIP: “Latched” – the output relay will remind energized until the Reset command executed ASSIGN TRIP RELAYS: “Trip” GROUND FAULT TRIP PICKUP: “0.20 x CT” INTENTIONAL GF TRIP DELAY: “0 ms” GROUND FAULT TRIP BACKUP: “On” ASSIGN BACKUP RELAYS: “Auxiliary3” - same relay assigned for the Short Circuit Trip Backup GROUND FAULT TRIP BACKUP DELAY: “200 ms” - same time delay assigned to the Short Circuit Trip Backup For the Current Unbalance element, enter the following values in the S6 CURRENT ELEMENTS  CURRENT UNBALANCE page. Press the MESSAGE  key after each settings is entered to move to the next message.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–35 CURRENT UNBALANCE ALARM: “Unlatched” ASSIGN ALARM RELAYS: “Alarm” CURRENT UNBALANCE ALARM PICKUP: “10%” CURRENT UNBALANCE ALARM DELAY: “10 s” CURRENT UNBALANCE ALARM EVENTS: “On” CURRENT UNBALANCE TRIP: “Latched” – the output relay will remind energized until the Reset command executed ASSIGN TRIP RELAYS: “Trip” CURRENT UNBALANCE TRIP PICKUP: “20%” CURRENT UNBALANCE TRIP DELAY: “5 s” 1.4.8 S7 Motor Starting The S7 Motor Starting settings page contains additional settings used to complement the Thermal Model. In our example, these characteristics are specified under Motor Protection heading. For the Acceleration Timer element, enter the following values in the S7 MOTOR STARTING  ACCELERATION TIMER page. Press the MESSAGE  key after each settings is completed to move to the next message. ACCELERATION TIMER TRIP: “Latched” ASSIGN TRIP RELAYS: “Trip” ACCELERATION TIMER FROM START: “13 s” – as shown in the acceleration curves at 100% voltage For the Start Inhibit element, enter the following values in the S7 MOTOR STARTING  START INHIBIT page. Press the MESSAGE  key after each settings is completed to move to the next message. START INHIBIT BLOCK: “On” TC USED MARGIN: “25%” With these settings, the 469 relay prevents motor starting if there is insufficient thermal capacity for a successful motor start. Refer to Start Inhibit on page 5–68 for additional information. There is not information available to set Starts/Hour, Time Between Starts, or the Restart Block features. Therefore, the following settings must be disabled: JOGGING BLOCK: “Off” RESTART BLOCK: “Off” 1.4.9 S8 RTD Temperature The S8 RTD Temperature page contains the settings for the twelve (12) field programmable RTDs that are normally used for temperature monitoring. The temperature measured by each RTD can be compared to pickup values, and set to energize Trip or Alarm outputs. For proper temperature monitoring, enter the RTD types in the S8 RTD TEMPERTURE  RTD TYPES page. Press the MESSAGE  key after each settings is completed to move to the next message.

CHAPTER 1: GETTING STARTED STATOR RTD TYPE: “100 Ohm Platinum” BEARING RTD TYPE: “100 Ohm Platinum” AMBIENT RTD TYPE: “100 Ohm Platinum” OTHER RTD TYPE: “100 Ohm Platinum” – default value As per the information provided above, there will be six RTDs, two per phase located in the Stator, and two Bearing RTDs, one to monitor the ambient temperature. For Stator Overtemperature protection, enter the following settings in the S8 RTD TEMPERTURE  RTD 1 to RTD6 menus: RTD #1 APPLICATION: “Stator” RTD #1 NAME: “ST Ph A1” RTD #1 ALARM: “Unlatched” ASSIGN ALARM RELAYS: “Alarm” RTD #1 ALARM TEMPERATURE: “135°C” RTD #1 HIGH ALARM: “Off” HIGH ALARM RELAYS: “Alarm” - default value RTD #1 HIGH ALARM TEMPERATURE: “135°C” - default value RTD #1 ALARM EVENTS: “On” RTD #1 TRIP: “Latched” RTD #1 TRIP VOTING: “RTD #5” ASSIGN TRIP RELAYS: “Trip” RTD #1 TRIP TEMPERATURE: “155°C” The settings for the other RTDs are entered in similar fashion. Refer to S8 RTD Temperature on page 5–72 for additional settings and additional information on RTD monitoring. 1.4.10 Other Settings Undervoltage Protection In addition to the settings illustrated above, there will be cases in motor applications where additional settings will be required, to monitor other system parameters such as voltage levels. The following sub-section will illustrate the procedures to set the 469 Motor Management Relay to meet those requirements. Description Using the same system information, the following example illustrates the steps to set the 469 for Undervoltage protection. The following settings are provided: Pickup: 70% of nominal voltage – starting 80% of nominal voltage – running Time Delay: 13.0 s Other Considerations • The function will be active only if there is voltage in the line feeding the motor, to avoid nuisance trips due to the lack of voltage. The 469 will consider the bus energized only

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–37 if the measured voltage is greater than 20% of nominal voltage. A trip condition will be initiated only if undervoltage is detected in all the phases. • In order to monitor for VT Fuse Failure or to monitor for undervoltage in one phase only, set an Alarm when the voltage is 90% of nominal voltage both during start and running. For the Undervoltage element, enter the following values in the S9 VOLTAGE ELEMENTS  UNDERVOLTAGE settings page. Press the ENTER key to save, and then the MESSAGE  key, after each settings is completed, to move to the next message: U/V ACTIVE ONLY IF BUS ENERGIZED: “Yes” UNDERVOLTAGE ALARM: “Unlatched” ASSIGN ALARM RELAYS: “Alarm” UNDERVOLTAGE ALARM PICKUP: “0.9 x RATED” STARTING U/V ALARM PICKUP: “0.9 x RATED” UNDERVOLTAGE ALARM DELAY: “0.0 s” UNDERVOLTAGE ALARM EVENTS: “Yes” UNDERVOLTAGE TRIP: “Latched” UNDRVOLTAGE TRIP MODE: “3-Phase” ASSIGN TRIP RELAYS: “Trip” UNDERVOLTAGE TRIP PICKUP: “0.8 x RATED” STARTING U/V TRIP PICKUP: “0.7 x RATED” UNDERVOLTAGE TRIP DELAY: “13.0 s”

CHAPTER 1: GETTING STARTED 1.5 Installation 1.5.1 Testing Extensive commissioning tests are available in Chapter 7. Tables for recording required settings are available in Microsoft Excel format from the GE Grid Solutions website at http:/ /www.gegridsolutions.com/. The website also contains additional technical papers and FAQs relevant to the 469 Motor Management Relay.

2–1 469 Motor Management Relay Chapter 2: Introduction GE Grid Solutions Introduction 2.1 Overview 2.1.1 Description The 469 Motor Management Relay is a microprocessor based relay designed for the protection and management of medium and large horsepower motors and driven equipment. The 469 is equipped with six (6) output relays for trips, alarms, and start blocks. Motor protection, fault diagnostics, power metering, and RTU functions are integrated into one economical drawout package. The single-line diagram below illustrates the 469 functionality using ANSI (American National Standards Institute) device numbers

CHAPTER 2: INTRODUCTION . FIGURE 2–1: Single Line Diagram Typical applications include: pumps, fans, compressors, mills, shredders, extruders, debarkers, refiners, cranes, conveyors, chillers, crushers, and blowers. Some of the protection highlights are detailed here; a complete list is shown below. Four assignable digital inputs may be configured for a number of different features including tachometer or generic trip and alarm with a programmable name. The thermal model incorporates unbalance biasing, RTD feedback, and exponential cooling. In addition to the 15 standard overload curves, there is a custom curve feature and a curve specifically designed for the starting of high inertia loads, when the acceleration time exceeds the safe stall time. A second overload curve is provided for two-speed motors. Ground faults or earth leakage as low as 0.25 A may be detected using the GE Grid Solutions 50:0.025 Ground CT. CT inputs for phase differential protection are also provided. The 12 RTD inputs provided may be individually field programmed for different RTD types. Voltage transformer inputs allow for numerous protection features based on voltage and power quantities. Four 4 to 20 mA analog inputs may be used for tripping and alarming on any transducer input such as vibration, pressure, flow, etc.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 2–3 FIGURE 2–2: Protection Features Fault diagnostics are provided through pretrip data, event record, trace memory, and statistics. Prior to issuing a trip, the 469 takes a snapshot of the measured parameters and stores them with the cause of the trip. This pre-trip data may be viewed using the MENU key, viewing the TARGET MESSAGES before the trip is reset, or by accessing the A1 STATUS  LAST TRIP DATA actual values. The 469 event recorder stores up to 256 time and date stamped events including the pre-trip data. Each time a trip occurs, the 469 stores a trace of 8 cycles pre-trip and 8 cycles post-trip for all measured AC quantities. Trip counters record the number of occurrences of each type of trip. Minimum and maximum values for analog inputs, along with maximum values for RTDs, are also recorded. These features enable the operator to pinpoint a problem quickly and with certainty. Power metering included with the 469 as a standard feature. The table below outlines the metered parameters available either through the front panel or communications ports. 51 Overload 86 Overload Lockout 66 Starts/Hour & Time Between Starts Restart Block (Anti-Backspin Timer) 50 Short Circuit & Short Circuit Backup Mechanical Jam 37 32 Undercurrent/Underpower Reverse Power 46 Current Unbalance 50G/51G Ground Fault & Ground Fault Backup 87 Differential Acceleration 49 Stator RTD 38 Bearing RTD Other RTD & Ambient RTD Open RTD Alarm Short/Low RTD 27/59 Undervoltage/Overvoltage 47 Phase Reversal 81 Frequency Reactive Power 55/78 Power Factor Analog Input Demand Alarm: A kW kvar kVA SR469 Self-Test, Service Trip Coil Supervision Welded Contactor Breaker Failure Remote Switch 14 Speed Switch & Tachometer Trip Load Shed Switch Pressure Switch Vibration Switch 19 Reduced Voltage Start 48 Over Torque Remote Start/Stop PROCTLA5.CDR Incomplete Sequence (Reduced Voltage Start) Forced Relay Operation

CHAPTER 2: INTRODUCTION The 469 is equipped with 3 fully functional and independent communications ports. The front panel RS232 port may be used for 469 settings programming, local interrogation or control, and upgrading of 469 firmware. The Computer RS485 port may be connected to a PLC, DCS, or PC based user interface program. The Auxiliary RS485 port may be used for redundancy or simultaneous interrogation and/or control from a second PLC, DCS, or PC software. There are also four 4 to 20 mA or 0 to 1 mA (as specified with order) transducer outputs that may be assigned to any measured parameter. The range of these outputs is scalable. Additional features are outlined below. METERING: • Voltage • Current and amps demand • Real power, kW demand, kW power consumption • Apparent power and kVA demand • Reactive power, kvar demand, kvar consumption/generation • Frequency • Power factor • RTD • Speed in RPM with a key phasor input • User-programmable analog inputs. ADDITIONAL FEATURES: • Drawout case (for ease of maintenance/testing) • Reduced voltage starting control for single transition • Trip coil supervision • Flash memory for easy firmware updates 2.1.2 Ordering Information All 469 features are standard; there are no options. The phase CT secondaries, control power, and analog output range must be specified at the time of order. The 469 differential CT inputs are field programmable for CTs with 1 A or 5 A secondaries. There are two ground CT inputs, one for the GE Grid Solutions 50:0.025 core balance CT and one for a ground CT with a 1 A or 5 A secondary, also field programmable. The VT inputs will accommodate VTs in either a delta or wye configuration. The output relays are always non-failsafe with the exception of the service relay. The EnerVista 469 Setup software is provided with each unit. A metal demo case may be ordered for demonstration or testing purposes.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 2–5 2.1.3 Order Codes 2.1.4 Example Order Codes 1. The 469-P1-LO-A20-E code specifies a 469 Motor Management Relay with 1 A CT inputs, 20 to 60 V DC or 20 to 48 V AC control voltage, 4 to 20 mA analog outputs, and enhanced display option with larger LCD. 2. The 469-P5-HI-A1-T-H code specifies a 469 Motor Management Relay with 5 A CT inputs, 90 to 300 V DC or 70 to 265 V AC control voltage, 0 to 1 mA analog outputs, enhanced display with Ethernet (10Base-T) communications, and a harsh environment conformal coating. 2.1.5 Accessories The following accessories are available for the 469 Motor Management Relay: • EnerVista 469 Setup software: No-charge software provided with each relay • Demo: Metal Carry Case in which 469 unit may be mounted • SR 19-1 Panel: Single cutout 19-inch panel • SR 19-2 Panel: Dual cutout 19-inch panel • SCI Module: RS232-to-RS485 converter box designed for harsh industrial environments • Phase CT: 50, 75, 100, 150, 200, 250, 300, 350, 400, 500, 600, 750, 1000 • HGF3, HGF5, HGF8: For sensitive ground detection on high resistance grounded systems. • 469 1-inch Collar: For shallow switchgear, reduces the depth of the relay by 1 3/8 inches • 469 3-inch Collar: For shallow switchgear, reduces the depth of the relay by 3 inches • Optional Mounting Kit: Additional mounting support 1819-0030 Table 2–1: 469 Order Codes 469 – * – * – * – * – * Base Unit 469 | | | | | 469 Motor Management Relay Phase Current Inputs P1 | | | | 1 A phase CT secondaries P5 | | | | 5 A phase CT secondaries Control Power LO | | | | | | 20 to 60 V DC; 20 to 48 V AC at 48 to 62 Hz HI | | | | | | 90 to 300 V DC; 70 to 265 V AC at 48 to 62 Hz Analog Outputs A1 | | Four (4) 0 to 1 mA analog outputs A20 | | Four (4) 4 to 20 mA analog outputs Display | | Discontinued: Basic display E | Enhanced display, larger LCD T | Enhanced with Ethernet (10Base-T) D | Enhanced display with DeviceNet Harsh Environment H Harsh (chemical) environment conformal coating

CHAPTER 2: INTRODUCTION 2.2 Specifications Specifications are subject to change without notice. 2.2.1 Inputs ANALOG CURRENT INPUTS Inputs:..................................................................0 to 1 mA, 0 to 20mA, or 4 to 20 mA (settings) Input impedance: ..........................................226 Ω ±10% Conversion range: .........................................0 to 21 mA Accuracy:............................................................±1% of full scale Type: .....................................................................passive Analog in supply: ...........................................+24 V DC at 100 mA max. Response time: .....................................≤100 ms DIFFERENTIAL CURRENT INPUTS CT primary:........................................................1 to 5000A CT secondary: .................................................1 A or 5 A (settings) Burden:................................................................<0.2 VA at rated load Conversion range: .........................................0.02 to 1 × CT primary Nominal frequency: ......................................20 to 70 Hz Frequency range: ..........................................20 to 120 Hz Accuracy:............................................................±0.5% of 1 × CT for 5 A ±0.5% of 5 × CT for 1 A CT withstand: ..................................................1 second at 80 × rated current, 2 seconds at 40 × rated current, continuous at 3 × rated current DIGITAL INPUTS Inputs:..................................................................9 opto-isolated inputs External switch: ..............................................dry contact < 400 Ω, or open collector NPN transistor from sensor; 6 mA sinking from internal 4 KΩ pull-up at 24 V DC with Vce < 4 V DC See Digital Inputs on page 2–11 for additional specifications. GROUND CURRENT INPUTS CT primary:........................................................1 to 5000 A CT secondary: .................................................1 A or 5 A (settings) Burden:................................................................<0.2 VA at rated load for 1 A or 5 A; <0.25 VA for 50:0.025 CTs at 25 A Conversion range: .........................................0.02 to 1 × CT primary Nominal frequency: ......................................20 to 70 Hz Frequency range: ..........................................20 to 120 Hz Accuracy:............................................................±0.5% of 1 × CT for 5 A CTs ±0.5% of 5 × CT for 1 A CTs ±0.125 A for 50:0.025 CTs CT (1 A/5 A) withstand:.................................1 second at 80 × rated current, 2 seconds at 40 × rated current, continuous at 3 × rated current CT (50:0.025) withstand: ..............................continuous at 150 mA PHASE CURRENT INPUTS CT primary:........................................................1 to 5000 A

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 2–7 CT secondary: .................................................1 A or 5 A (specify with order) Burden:................................................................Less than 0.2 VA at rated load Conversion range:..........................................0.05 to 20 × CT Nominal frequency: ......................................20 to 70 Hz Frequency range: ..........................................20 to 120 Hz Accuracy: ...........................................................at < 2 × CT: ±0.5% of 2 × CT at ≥ 2 × CT: ±1% of 20 × CT CT withstand: ..................................................1 second at 80 × rated current, 2 seconds at 40 × rated current, continuous at 3 × rated current RTD INPUTS 3 wire RTD Types: ..........................................100 Ω Platinum (DIN.43760), 100 Ω Nickel, 120 Ω Nickel, 10 Ω Copper RTD sensing current: ....................................5 mA Isolation:.............................................................36 Vpk (isolated with analog inputs and outputs) Range:..................................................................–50 to +250°C Accuracy: ...........................................................±2°C Lead resistance: .............................................25 Ω Max per lead for Pt and Ni type; 3 Ω Max per lead for Cu type No sensor:..........................................................>1000 Ω Short/low alarm: ............................................<–50°C TRIP COIL SUPERVISION Applicable voltage: .......................................20 to 300 V DC / V AC Trickle current: ................................................2 to 5 mA VOLTAGE INPUTS VT ratio:...............................................................1.00 to 300.00:1 in steps of 0.01 VT secondary: .................................................273 V AC (full-scale) Conversion range: .........................................0.05 to 1.00 × full scale Nominal frequency: ......................................20 to 70 Hz Frequency range: ..........................................20 to 120 Hz Accuracy: ...........................................................±0.5% of full scale Max. continuous: ...........................................280 V AC Burden:................................................................>500 kΩ Sensor supply: ................................................+24 V DC at 20 mA max. 2.2.2 Outputs ANALOG CURRENT OUTPUT Type:.....................................................................Active Range:..................................................................4 to 20 mA, 0 to 1 mA (must be specified with order) Accuracy: ...........................................................±1% of full scale Max. load:...........................................................4 to 20 mA input: 1200 Ω 0 to 1 mA input: 10 kΩ Isolation:.............................................................36 Vpk (isolated with RTDs and analog inputs) 4 Assignable Outputs:..................................phase A, B, and C current; three-phase average current; ground current; phase AN (AB), BN (BC), and CN (CA) voltages; three-phase average voltage; hottest stator RTD; hottest bearing RTD, hottest other RTD; RTDs 1 to 12;

CHAPTER 2: INTRODUCTION power factor; 3-phase real (kW), apparent (kVA), and reactive (kvar) power; thermal capacity used; relay lockout time, current demand; kvar, kW, and kVA demand; motor load, torque OUTPUT RELAYS Relay contacts are unsafe to touch when the 469 is energized! If the output relay contacts are required for low voltage accessible applications, it is the customer's responsibility to ensure proper insulation levels. Configuration: .................................................6 Electromechanical Form C Contact material: ..........................................silver alloy Operate time: ..................................................10 ms Make/carry:.......................................................10 A continuous 30 A for 0.2 s Max ratings for 100000 operations: 2.2.3 Protection ACCELERATION TIMER Pickup: .................................................................transition of no phase current to > overload pickup Dropout:..............................................................when current falls below overload pickup Time delay:........................................................1.0 to 250.0 s in steps of 0.1 Timing accuracy: ...........................................±100 ms or ±0.5% of total time (Note 1) Elements:............................................................Trip CURRENT UNBALANCE Unbalance: ........................................................I2 / I1 if Iavg > FLA I2 / I1 × Iavg / FLA if Iavg < FLA Range:..................................................................0 to 100% UB in steps of 1 Pickup level:.......................................................4 to 40% UB in steps of 1 Time delay:........................................................1 to 60 s in steps of 1 Pickup accuracy: ...........................................±2% Timing accuracy: ...........................................±0.5 s or ± 0.5% of total time (Note 1) Elements:............................................................Trip and Alarm FREQUENCY Req’d voltage: .................................................>30% of full scale in phase A Overfrequency pickup: ...............................25.01 to 70.00 Hz in steps of 0.01 Underfrequency pickup: ............................20.00 to 60.00 Hz in steps of 0.01 Accuracy:............................................................±0.02 Hz Time delay:........................................................0.0 to 60.0 s in steps of 0.1 VOLTAGE BREAK MAX. LOAD DC RESISTIVE 30 V 10 A 300 Ω 125 V 0.5 A 62.5 Ω 250 V 0.3 A 75 Ω DC INDUCTIVE L/ R=40ms 30 V 5 A 150 Ω 125 V 0.25 A 31.3 Ω 250 V 0.15 A 37.5 Ω AC RESISTIVE 120 V 10 A 2770 VA 250 V 10 A 2770 VA AC INDUCTIVE P.F.=0.4 120 V 4 A 480 VA 250 V 3 A 750 VA

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 2–9 Timing accuracy: ...........................................<100 ms or ±0.5% of total time Elements:............................................................Trip and Alarm GROUND INSTANTANEOUS OVERCURRENT Pickup level: ......................................................0.1 to 1.0 × CT primary in steps of 0.01 Time delay:........................................................0 to 1000 ms in steps of 10 Pickup accuracy: ...........................................as per ground current input Operate time (0 ms time delay): ..............<25 ms @ 60 Hz (I > 1.5 x Pickup)* <30 ms @ 50 Hz (I > 1.5 x Pickup)* Timing accuracy: ...........................................+50 ms Elements:............................................................Trip and Alarm * Applies if Voltage phase A detected, Motor Status Running and frequency within 5% of nominal (<50ms if these conditions are not met). JOGGING BLOCK Starts/hour:.......................................................1 to 5 in steps of 1 Time between starts: ..................................0 to 500 min. Timing accuracy: ...........................................±0.5 s or ± 0.5% of total time Elements:............................................................Block MECHANICAL JAM Pickup level: ......................................................1.01 to 3.00 × FLA in steps of 0.01 of any one phase, blocked on start Time delay:........................................................1 to 30 s in steps of 1 Pickup accuracy: ...........................................as per phase current inputs Timing accuracy: ...........................................±0.5 s (Note 1) Elements:............................................................Trip OVERLOAD / STALL PROTECTION / THERMAL MODEL Overload curves: ...........................................15 standard overload curves, custom curve, voltage dependent custom curve for high inertia starting (all curves time out against average phase current) Biasing:................................................................Phase unbalance Hot/cold curve ratio Stator RTD Running cool rate Stopped cool Rate Line voltage Overload pickup: ...........................................1.01 to 1.25 (for service factor) Pickup accuracy: ...........................................as per phase current Inputs Timing accuracy: ...........................................±100 ms or ±2% of total time (Note 1) Elements:............................................................Trip and Alarm OVERVOLTAGE Pickup level: ......................................................1.01 to 1.10 × rated in steps of 0.01 of any one phase Time delay:........................................................0.1 to 60.0 s in steps of 0.1 Pickup accuracy: ...........................................as per voltage inputs Timing accuracy: ...........................................±100 ms or ±0.5% of total time Elements:............................................................Trip and Alarm

CHAPTER 2: INTRODUCTION PHASE DIFFERENTIAL INSTANTANEOUS OVERCURRENT Pickup level:.......................................................0.05 to 1.0 × CT primary in steps of 0.01 of any one phase Time delay:........................................................0 to 1000 ms in steps of 10 Pickup accuracy: ...........................................as per phase differential current inputs Timing accuracy: ...........................................+50 ms Elements:............................................................Trip PHASE SHORT CIRCUIT Pickup level:.......................................................2.0 to 20.0 × CT primary in steps of 0.1 of any one phase Time delay:........................................................0 to 1000 ms in steps of 10 Pickup accuracy: ...........................................as per phase current inputs Operate time (0 ms time delay): ..............<25 ms @ 60 Hz (I > 1.5 x Pickup)* <30 ms @ 50 Hz (I > 1.5 x Pickup)* Timing accuracy: ...........................................+50 ms Elements:............................................................Trip * Applies if Voltage phase A detected, Motor Status Running and frequency within 5% of nominal (<50ms if these conditions are not met). REDUCED VOLTAGE START Transition level: ..............................................25 to 300% FLA in steps of 1 Transition time: ...............................................1 to 600 s in steps of 1 Transition control: .........................................Current, Timer, Current and Timer RESTART BLOCK Time delay:........................................................1 to 50000 s in steps of 1 Timing accuracy: ...........................................±0.5 s or ±0.5% of total time Elements:............................................................Block RTD Pickup: .................................................................1 to 250°C in steps of 1 Pickup hysteresis: ..........................................2°C Time delay:........................................................4 s Elements:............................................................Trip and Alarm UNDERCURRENT Pickup level:.......................................................0.10 to 0.95 × CT primary in steps of 0.01 of any one phase Time delay:........................................................1 to 60 s in steps of 1 Block from start: ............................................0 to 15000 s in steps of 1 Pickup accuracy: ...........................................as per phase current inputs Timing accuracy: ...........................................±0.5 s or ±0.5% of total time (Note 1) Elements:............................................................Trip and Alarm UNDERVOLTAGE Pickup Level: Motor starting: .............................................0.60 to 0.99 × Rated in steps of 0.01 Motor running: .............................................0.60 to 0.99 × Rated in steps of 0.01 of any one phase Time delay:........................................................0.1 to 60.0 s in steps of 0.1 Pickup accuracy: ...........................................as per voltage inputs Timing accuracy: ...........................................<100 ms or ±0.5% of total time Elements:............................................................Trip and Alarm

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 2–11 VOLTAGE PHASE REVERSAL Configuration: .................................................ABC or ACB phase rotation Timing Accuracy: ..........................................500 to 700 ms Elements:............................................................Trip NOTE NoteNote 1 NOTE 1 For Timing accuracy specifications marked (Note 1), setpoint "Motor Load Filter Interval" may increase trip/alarm times. When setpoint is greater than 1 cycle, trip/alarm times increase 16.7 ms for each additional cycle in the filter interval. 2.2.4 Digital Inputs DIGITAL COUNTER Configuration: .................................................assign to digital inputs 1 to 4 Frequency:.............................................≤50 times a second Range:..................................................................0 to 1 000 000 000 Elements:............................................................Alarm GENERAL PURPOSE SWITCH Configuration: .................................................assign to digital inputs 1 to 4 Time delay:........................................................0.1 to 5000.0 s in steps of 0.1 Block from start: ............................................0 to 5000 s in steps of 1 Timing accuracy: ...........................................±250 ms or ±0.5% of total time Elements:............................................................Trip and Alarm LOAD SHED Configuration: .................................................assign to digital inputs 1 to 4 Timing accuracy: ...........................................100 ms maximum Elements:............................................................Trip PRESSURE SWITCH Configuration: .................................................assign to digital inputs 1 to 4 Time delay:........................................................0.1 to 100.0 s in steps of 0.1 Block from start: ............................................0 to 5000 s in steps of 1 Timing accuracy: ...........................................±250 ms or ±0.5% of total time Elements:............................................................Trip and Alarm REMOTE SWITCH Configuration: .................................................assign to digital inputs1 to 4 Timing accuracy: ...........................................100 ms maximum Elements:............................................................Trip and Alarm SPEED SWITCH Configuration: .................................................assign to digital inputs1 to 4 Time delay:........................................................1.0 to 250.0 s in steps of 0.1 Timing accuracy: ...........................................250 ms maximum Elements:............................................................Trip TACHOMETER Configuration: .................................................assign to digital inputs 1 to 4 Range:..................................................................100 to 7200 RPM Pulse duty cycle: ............................................>10% Elements:............................................................Trip and Alarm VIBRATION SWITCH

CHAPTER 2: INTRODUCTION Configuration: .................................................assign to digital inputs 1 to 4 Time delay:........................................................0.1 to 100.0 s in steps of 0.1 Timing accuracy: ...........................................±250 ms or ±0.5% of total time Elements:............................................................Trip and Alarm 2.2.5 Monitoring DEMAND Metering: ............................................................maximum phase current three-phase real power three-phase apparent power three-phase reactive power Measurement type: ......................................rolling demand Demand interval: ...........................................5 to 90 min. in steps of 1 Update rate:......................................................1 minute Elements:............................................................Alarm METERED REACTIVE ENERGY CONSUMPTION Description:.......................................................Continuous total reactive energy consumption Range:..................................................................0 to 999999.999 Mvar·hours Timing accuracy: ...........................................±0.5% Update rate:......................................................5 seconds METERED REACTIVE ENERGY GENERATION Description:.......................................................Continuous total reactive energy generation Range:..................................................................0 to 2000000.000 Mvar·hours Timing accuracy: ...........................................±0.5% Update Rate:.....................................................5 seconds METERED REAL ENERGY CONSUMPTION Description:.......................................................Continuous total real energy consumption Range:..................................................................0 to 999999.999 MW·hours Timing accuracy: ...........................................±0.5% Update rate:......................................................5 seconds MOTOR STATUS Description:.......................................................Event record of motor start Timing Accuracy:............................................+250 ms OVERTORQUE Pickup level:.......................................................0.1 to 999999.9 Nm/ft·lb in steps of 0.1; torque unit is selectable under torque setup Time delay:........................................................0.2 to 30.0 s in steps of 0.1 Pickup accuracy: ...........................................±2.0% Time accuracy:................................................±100 ms or 0.5% of total time Elements:............................................................Alarm (induction motors only) POWER FACTOR Range:..................................................................0.01 lead or lag to 1.00 Pickup level:.......................................................0.99 to 0.05 in steps of 0.01, lead and lag Time delay:........................................................0.2 to 30.0 s in steps of 0.1 Block from start: ............................................0 to 5000 s in steps of 1 Pickup accuracy: ...........................................±0.02 Timing accuracy: ...........................................±100 ms or ±0.5% of total time (Note 1) Elements:............................................................Trip and Alarm

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 2–13 THREE-PHASE APPARENT POWER Range:..................................................................0 to 65535 kVA Accuracy: ...........................................................Iavg < 2 × CT: ±1% of × 2 × CT × VT × VTfull scale Iavg > 2 × CT: ±1.5% of × 20 × CT × VT × VTfull scale Elements:............................................................Trip and Alarm THREE-PHASE REACTIVE POWER Range:..................................................................0 to ±99999 kvar Pickup level: ......................................................±1 to 25000 kvar in steps of 1 Time delay:........................................................0.2 to 30.0 s in steps of 0.1 Block from start: .............................................0 to 5000 s in steps of 1 Pickup accuracy: ............................................at Iavg < 2 × CT: ±1% of × 2 × CT × VT × VTfull scale at Iavg > 2 × CT: ±1.5% of × 20 × CT × VT × VTfull scale Timing accuracy: ...........................................±100ms or ± 0.5% of total time (Note 1) Elements:............................................................Trip and Alarm THREE-PHASE REAL POWER Range:..................................................................0 to ±99999 kW Pickup:.................................................................1 to 25000 kW in steps of 1 Time delay:........................................................1 to 30 s in steps of 1 Block from start: ............................................0 to 15000 s in steps of 1 Pickup Accuracy:............................................at Iavg < 2 × CT:±1% of × 2 × CT × VT × VTfull scale at Iavg > 2 × CT±1.5% of × 20 × CT × VT × VTfull scale Timing accuracy: ...........................................±0.5 s or ±0.5% of total time (Note 1) NOTE NoteNote 1 NOTE 1 For Timing accuracy specifications marked (Note 1), setpoint "Motor Load Filter Interval" may increase trip/alarm times. When setpoint is greater than 1 cycle, trip/alarm times increase 16.7 ms for each additional cycle in the filter interval. 2.2.6 Power Supply CONTROL POWER Options:...............................................................LO / HI (must be specified with order) LO range:............................................................20 to 60 V DC 20 to 48 V AC at 48 to 62 Hz HI range:.............................................................90 to 300 V DC 70 to 265 V AC at 48 to 62 Hz Power:..................................................................45 VA (max), 25 VA typical Total loss of voltage ride through time (0% control power): 16.7 ms FUSE (HI and LO VOLT) Current rating: ................................................2.50 A Type:.....................................................................5 × 20 mm SLO-BLO HRC Littelfuse, high breaking capacity Model no.:...........................................................215-02.5 NOTE Note An external fuse must be used if the supply voltage exceeds 250 V. 3 3 3 3 3 3

CHAPTER 2: INTRODUCTION 2.2.7 CPU COMMUNICATIONS RS232 port:........................................................1, front panel, non-isolated RS485 ports:......................................................2, isolated together at 36 Vpk Baud rates:........................................................300, 1200, 2400, 4800, 9600, and 19200 (for RS485); 9600 (for RS232) Parity:...................................................................None, Odd, Even Ethernet:.............................................................10Base-T RJ45 connector Modbus TCP/IP Version 2.0 / IEEE 802.3 MODBUS Modbus: ..............................................................Modbus® RTU / half-duplex DEVICENET Baud rate: ..........................................................125K, 250K, 500K MAC ID:................................................................0 to 63 range Connection type: ...........................................Explicit Messages, Poll I/O, Change Of State ODVA certified CLOCK Accuracy:............................................................±5 minutes/month Supercap backup life: .................................45 days when control power is off 2.2.8 Waveform Capture (Trace Memory) SAMPLING FREQUENCY Frequency:.........................................................720 samples per second for 60 Hertz system 600 samples per second for 50 Hertz system ANALOG WAVEFORMS Analog Waveforms:.......................................Phase currents Ia, Ib, Ic Phase differential currents Ia Diff., Ib Diff., Ic Diff. Ground Current Phase voltages Van(Vab), Vbn, Vcn(Vcb) DIGITAL WAVEFORMS Digital Waveforms:........................................TRIP RELAY AUX RELAY 2 AUX RELAY 3 ALARM RELAY BLOCK START RELAY SELF TEST RELAY 2.2.9 Testing TYPE TESTING The table below lists the 469 type tests: Standard Test Name Level EIA 485 RS485 Communications Test 32 units at 4000 ft. GE Digital Energy Temperature Cycling –50°C / +80°C

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 2–15 PRODUCTION TESTS Thermal cycling: ............................................Operational test at ambient, reducing to –40°C and then increasing to 60°C Dielectric strength: .......................................(order code ’LO’) 550 VAC for 1 second (order code ’HI’) 2200 VAC for 1 second DO NOT CONNECT FILTER GROUND TO SAFETY GROUND DURING ANY PRODUCTION TESTS! 2.2.10 Certification CERTIFICATION ACA:.......................................................................conforms to RF emissions for Australia, tick mark CE:..........................................................................conforms to EN 55011/CISPR 11, EN 50082-2 EN: .........................................................................EN50263 EMC - CE for Europe FCC:.......................................................................conforms to RF emissions for North America, part 15 IEC:.........................................................................conforms to 1010-1, LVD - CE for Europe ISO:........................................................................Manufactured under an ISO9001 registered system. UL:..........................................................................UL listed E83849 for the USA and Canada IEC 60068-2-38 Composite Temperature/Humidity 65/–10°C at 93% RH IEC 60255-5 Dielectric Strength 2300 V AC IEC 60255-5 Impulse Voltage 5 kV IEC 60255-5 Insulation Resistance >100 MΩ / 500 V AC / 10 s IEC 60255-21-1 Sinusoidal Vibration 2 g IEC 60255-22-1 Damped Oscillatory Burst, 1 MHz 2.5 kV / 1 kV IEC 60255-22-2 Electrostatic Discharge: Direct 8 kV IEC 60255-22-3 Radiated RF Immunity 10 V/m IEC 60255-22-4 Electrical Fast Transient / Burst Immunity 4 kV IEC 60255-22-5 Surge Immunity 4 kV / 2 kV IEC 60255-22-6 Conducted RF Immunity, 150 kHz to 80 MHz 10 V/m IEC 60255-25 Radiated RF Emission Group 1 Class A IEC 60255-25 Conducted RF Emission Group 1 Class A IEC 60529 Ingress of Solid Objects and Water (IP) IP40 (front), IP20 (back) IEC 61000-4-11 Voltage Dip; Voltage Interruption 0%, 40%, 100% IEEE C37.90.1 Fast Transient SWC ±4 kV IEEE C37.90.1 Oscillatory Transient SWC ±2.5 kV IEEE C37.90.3 Electrostatic Discharge: Air and Direct 15 kV / 8 kV Standard Test Name Level

CHAPTER 2: INTRODUCTION 2.2.11 Physical CASE Type: .....................................................................Fully drawout (automatic CT shorts) Seal: ......................................................................Seal provision Mounting:...........................................................Panel or 19-inch rack mount IP Class:...............................................................IP40-X PACKAGING Shipping box:....................................................12” × 11” × 10” (W × H × D) 30.5 cm × 27.9 cm × 25.4 cm Shipping weight: ............................................17 lbs Max / 7.7 kg TERMINALS Low voltage (A, B, C, D terminals): 12 AWG maximum High voltage (E, F, G, H terminals): #8 ring lug, 10 AWG wire std. 2.2.12 Environmental ENVIRONMENT Ambient operating temperature: –40°C to +60°C Ambient storage temperature: –40°C to +80°C Humidity:............................................................up to 90%, non-condensing. Altitude:...............................................................up to 2000 m Pollution degree: ............................................2 NOTE Note At temperatures less than –20°C, the LCD contrast may be impaired. 2.2.13 Long-term Storage LONG-TERM STORAGE Environment: ....................................................In addition to the above environmental considerations, the relay should be stored in an environment that is dry, corrosive-free, and not in direct sunlight. Correct storage:..............................................Prevents premature component failures caused by environmental factors such as moisture or corrosive gases. Exposure to high humidity or corrosive environments will prematurely degrade the electronic components in any electronic device regardless of its use or manufacturer, unless specific precautions, such as those mentioned in the Environment section above, are taken. NOTE Note It is recommended that all relays be powered up once per year, for one hour continuously, to avoid deterioration of electrolytic capacitors and subsequent relay failure.

3–1 469 Motor Management Relay Chapter 3: Installation GE Grid Solutions Installation 3.1 Mechanical Installation 3.1.1 Description The 469 is packaged in the standard GE Grid Solutions SR-series arrangement, which consists of a drawout unit and a companion fixed case. The case provides mechanical protection to the unit and is used to make permanent connections to all external equipment. The only electrical components mounted in the case are those required to connect the unit to the external wiring. Connections in the case are fitted with mechanisms required to allow the safe removal of the relay unit from an energized panel (for example, automatic CT shorting). The unit is mechanically held in the case by pins on the locking handle that cannot be fully lowered to the locked position until the electrical connections are completely mated. Any 469 can be installed in any 469 case, except for custom manufactured units that are clearly identified as such on both case and unit, and are equipped with an index pin keying mechanism to prevent incorrect pairings. No special ventilation requirements need to be observed during the installation of the unit. The 469 can be cleaned with a damp cloth.

CHAPTER 3: INSTALLATION FIGURE 3–1: Dimensions To prevent unauthorized removal of the drawout unit, a wire lead seal can be installed in the slot provided on the handle. With this seal in place, the drawout unit cannot be removed. A passcode or settings access jumper can be used to prevent entry of settings but allow monitoring of actual values. If access to the front panel controls must be restricted, a separate seal can be installed on the cover to prevent it from being opened. Hazard may result if the product is not used for its intended purpose. FIGURE 3–2: Seal on Drawout Unit 3.1.2 Product Identification Each 469 unit and case are equipped with a permanent label. This label is installed on the left side (when facing the front of the relay) of both unit and case. The case label details which units can be installed. The case label details the following information: model number, manufacture date, and special notes.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–3 The unit label details the following information: model number, type, serial number, manufacture date, phase current inputs, special notes, overvoltage category, insulation voltage, pollution degree, control power, and output contact rating. FIGURE 3–3: Case and Unit Identification Labels 3.1.3 Installation The 469 case, alone or adjacent to another SR-series unit, can be installed in the panel of a standard 19-inch rack (see below for panel cutout dimensions). Provision must be made when mounting for the front door to swing open without interference to, or from, adjacent equipment. Normally the 469 unit is mounted in its case when shipped from the factory, and should be removed before mounting the case in the supporting panel. Unit withdrawal is described in the next section.

CHAPTER 3: INSTALLATION FIGURE 3–4: Single 469 Cutout Panel FIGURE 3–5: Double 469 Cutout Panel After the mounting hole in the panel has been prepared, slide the 469 case into the panel from the front. Applying firm pressure on the front to ensure the front bezel fits snugly against the front of the panel, bend out the pair of retaining tabs (to a horizontal position) from each side of the case as shown below. The case is now securely mounted, ready for panel wiring. If additional support is desired, the SR optional mounting kit may be ordered.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–5 FIGURE 3–6: Bend Up Mounting Tabs 3.1.4 Unit Withdrawal and Insertion TURN OFF CONTROL POWER BEFORE DRAWING OUT OR RE-INSERTING THE RELAY TO PREVENT MALOPERATION! If an attempt is made to install a unit into a non-matching case, the mechanical key will prevent full insertion of the unit. Do not apply strong force in the following step or damage may result. To remove the unit from the case:  Open the cover by grasping the center of the right side and then pulling the cover, which will rotate about the hinges on the left.  Release the locking latch, located below the locking handle, by pressing upward on the latch with the tip of a screwdriver. FIGURE 3–7: Press Latch to Disengage Handle 808704A1.CDR

CHAPTER 3: INSTALLATION  While holding the latch raised, grasp the locking handle in the center and pull firmly, rotating the handle up from the bottom of the unit until movement ceases. FIGURE 3–8: Rotate Handle to Stop Position Once the handle is released from the locking mechanism, the unit can freely slide out of the case when pulled by the handle. It may sometimes be necessary to adjust the handle position slightly to free the unit. FIGURE 3–9: Slide Unit out of Case To insert the unit into the case:  Raise the locking handle to the highest position.  Hold the unit immediately in front of the case and align the rolling guide pins (near the hinges of the locking handle) to the guide slots on either side of the case.  Slide the unit into the case until the guide pins on the unit have engaged the guide slots on either side of the case.  Grasp the locking handle from the center and press down firmly, rotating the handle from the raised position toward the bottom of the unit.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–7 When the unit is fully inserted, the latch will be heard to click, locking the handle in the final position. No special ventilation requirements need to be observed during the installation of the unit. The unit does not require cleaning. 3.1.5 Ethernet Connection If using the 469 with the Ethernet 10Base-T option, ensure that the network cable is disconnected from the rear RJ45 connector before removing the unit from the case. This prevents any damage to the connector. The unit may also be removed from the case with the network cable connector still attached to the rear RJ45 connector, provided that there is at least 16" of network cable available when removing the unit from the case. This extra length allows the network cable to be disconnected from the RJ45 connector from the front of the switchgear panel. Once disconnected, the cable can be left hanging safely outside the case for re-inserting the unit back into the case. The unit may then be re-inserted by first connecting the network cable to the units' rear RJ45 connector (see step 3 of Unit Withdrawal and Insertion on page 3–5). Ensure that the network cable does not get caught inside the case while sliding in the unit. This may interfere with proper insertion to the case terminal blocks and damage the cable. FIGURE 3–10: Ethernet Cable Connection To ensure optimal response from the relay, the typical connection timeout should be set as indicated in the following table: TCP/IP sessions Timeout setting up to 2 2 seconds up to 4 3 seconds

CHAPTER 3: INSTALLATION 3.1.6 DeviceNet Connection If using the 469 DeviceNet option (Refer to GEK-106491C: 469 Communications Guide), ensure that the network cable is disconnected from the rear terminal block before removing the unit out of the case to prevent any damage to the connector. The unit may also be removed from the case with the network cable connector still attached to the rear terminal block provided that there is at least 16" of network cable available when removing the unit out of the case. This extra length will allow the network cable to be disconnected from the terminal block from the front of the switchgear panel. Once disconnected, the cable can be left hanging safely outside the case for re-inserting the unit back into the case. The unit may then be re-inserted by first connecting the network cable to the units' rear terminal block (see step 3 of Unit Withdrawal and Insertion on page 3–5). Ensure that the network cable does not get caught inside the case while sliding in the unit. This may interfere with proper insertion to the case terminal blocks and damage the cable. The DeviceNet port has the following characteristics: • Connector type: 5-pin Phoenix connector • Baud rate: 125K, 250K or 500K baud • Protocol: DeviceNet The following ports available simultaneously: • RS232, 2 × RS485/422 with no DeviceNet option • RS232, 1 × RS485/422 with DeviceNet option The DeviceNet configuration is shown in the following table: Pin Signal Description 1 V– Negative supply voltage 2 CAN_L CAN_L bus line 3 SHIELD Cable shield 4 CAN_H CAN_H bus line 5 V+ Positive supply voltage

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–9 3.1.7 Terminal Locations FIGURE 3–11: Terminal Layout 3.1.8 Terminal List Table 3–1: 469 Terminal List Terminal Description Terminal Description A01 RTD #1 Hot D21 Assignable Switch 3 A02 RTD #1 Compensation D22 Assignable Switch 4 A03 RTD Return D23 Switch Common A04 RTD #2 Compensation D24 Switch +24 V DC A05 RTD #2 Hot D25 Computer RS485 + A06 RTD #3 Hot D26 Computer RS485 – A07 RTD #3 Compensation D27 Computer RS485 Common A08 RTD Return E01 1 Trip NC

CHAPTER 3: INSTALLATION A09 RTD #4 Compensation E02 1 Trip NO A10 RTD #4 Hot E03 2 Auxiliary Common A11 RTD #5 Hot E04 3 Auxiliary NC A12 RTD #5 Compensation E05 3 Auxiliary NO A13 RTD Return E06 4 Alarm COMMON A14 RTD #6 Compensation E07 5 Block Start NC A15 RTD #6 Hot E08 5 Block Start NO A16 Analog Output Common – E09 6 Service Common A17 Analog Output 1 + E10 not used A18 Analog Output 2 + E11 Coil Supervision + A19 Analog Output 3 + E12 469 Drawout Indicator A20 Analog Output 4 + F01 1 Trip Common A21 Analog Shield F02 2 Auxiliary NO A22 Analog In 24 V DC Power Supply + F03 2 Auxiliary NC A23 Analog Input 1 + F04 3 Auxiliary COMMON A24 Analog Input 2 + F05 4 Alarm NO A25 Analog Input 3 + F06 4 Alarm NC A26 Analog Input 4 + F07 5 Block Start Common A27 Analog Input Common – F08 6 Service NO B01 RTD Shield F09 6 Service NC B02 Auxiliary RS485 + F10 not used B03 Auxiliary RS485 – F11 Coil Supervision – B04 Auxiliary RS485 Common F12 469 Drawout Indicator C01 Access + G01 Phase VT Neutral C02 Access – G02 Phase A VT • C03 469 Under Test + G03 Differential A CT • C04 469 Under Test – G04 Differential B CT • D01 RTD #7 Hot G05 Differential C CT • D02 RTD #7 Compensation G06 Phase A CT • D03 RTD Return G07 Phase B CT • D04 RTD #8 Compensation G08 Phase C CT • D05 RTD #8 Hot G09 1A/5A Ground CT • D06 RTD #9 Hot G10 50:0.025 Ground CT • D07 RTD #9 Compensation G11 Filter Ground D08 RTD Return G12 Safety Ground D09 RTD #10 Compensation H01 Phase B VT • D10 RTD #10 Hot H02 Phase C VT • D11 RTD #11 Hot H03 Differential A CT D12 RTD #11 Compensation H04 Differential B CT D13 RTD Return H05 Differential C CT D14 RTD #12 Compensation H06 Phase A CT D15 RTD #12 Hot H07 Phase B CT D16 Starter Status H08 Phase C CT D17 Emergency Restart H09 1A/5A Ground CT D18 Remote Reset H10 50:0.025 Ground CT D19 Assignable Switch 1 H11 Control Power – D20 Assignable Switch 2 H12 Control Power + Table 3–1: 469 Terminal List Terminal Description Terminal Description

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–11 3.2 Electrical Installation 3.2.1 Typical Wiring FIGURE 3–12: Typical Wiring Diagram ��� �������� ���������������� ��������� ���� ���� ���� ����� � � � � � � � � � � � �� � � � � � � � � � � � � � � �� ��������� ����� ������ ���� ���� ���� ������ ������ ������ ������ ������� � � ����� ������������ ������������������ ������� ������� ��� ��� ��� ��� ��� ��� ����� ���� ����� ���������� ���������� ���������� ���������� ���������� ���������� ���� ���� ��� ��������� ������������ �� �� ��� �� �� �� �� �� �� ���� ��� ��� ��� �� �� �� ����������� ������ �� �� �� �� �� �� �� �� �� ������� ����������� ����� ��������� ������� ������ ��� �������������� ������� �� ��� ������� �� ��� �� ����� �� ����� ������� �� ��� �� ����� �� ����� ������������������� ������� ������� �� �� ����� �� �� ����� ��� ������� ����� �� �� ��� �� ��� ������ �� �� �� ������ ������ �� �� �� �� �� �� ��� ������ ������ ������ ��� ��� ��� ��� ��� �� �� �������������� ��� �� �� ��� ��� ��� ��� ��� �� � ������������ � ������������������ ������������������ ������������������ ������������������ ����������������� �������������� ��� �� ������ ��� � �������� ����� ����� ��������� �� � � �� ��� � ��� �� �� ��� ��� ������ ������ �� �� �� �� �� �� �� ������ ������� ��� ��� ��� ��� ��� ��� �� ��� �� ���������� � ��� ��� ��� ��� ������ ��� ��� ������������� ��� �� �� ��� �� ��� ������� ������� ����������������� ���������������� ����� ����� ������� ����� ������������������������ ����� � � ������� ���� ��� �� �������� ������ ������ ����� ��� ��� ��� ��� ������ ���������������� ����� ����������� �� ������������ �������� �������� ����� ��� ��� ��� ������ ������� �������������� ��� ��� ������������ ���������� ��� ��� ���������� ���������� ��� ���������� ��� ���������� ��� ���������� ��� ���������� ��� ��� ��� ��� ��� ������ ������������ ������������ ������������ ������������ ������������ ������������ ������������ ������������ ������������ ������������ ������������ ������������ �� �� ��� ��� ��������������������� ����������������� � � ����� ������� ��������� � � �� �� ������ ���� ����� ������� � ����� ������� � ����� ������� � ����� ������� � ����� ������� � ����� ������� � ������� ����� � ������� ����� � ���� ������� � ���� ������� � ���� ���� ������� ��� ��� ����� �������� � � � � ����� �������� � � ���� � � ���� �������� �������� ��� �� ��� ������������� ��� ��� ���������� ��� ��������������������� ���������� ����� ��� ������ � � ������ ��� �� �� ���� �� �������������� � � � � � � ������� ����� ���������������������������������� ������� ��� ��������� ��� ����������� ��� ��� ��������� ������� ��������������� ������������� ������������� �������������������� ������������� ����� ����� ����� ���������������� ������������������ ������ ��������������� ������������ �������������������� ����������� ������������� ���������������������� ��� ��� ��� ������������������� ��������������������� ������ ��� ��� �� ����� ������ ����� �� � � � � � ���������� �� ��������� ������ ��� �������� ���������� ����� ����������� ��������������������������

CHAPTER 3: INSTALLATION 3.2.2 Description A broad range of 469 applications are available. Although it is not possible to present typical connections for all possible schemes, this section will cover the interconnections of instrument transformer inputs, other inputs, outputs, communications, and grounding. See FIGURE 3–11: Terminal Layout on page 3–9 and Table 3–1: 469 Terminal List on page 3–9 for terminal arrangement. 3.2.3 Control Power The order code from the terminal label on the side of the drawout unit specifies the nominal control voltage as follows: LO: 20 to 60 V DC; 20 to 48 V AC, or HI: 90 to 300 V DC; 70 to 265 V AC Ensure applied control voltage and rated voltage on drawout case terminal label match. For example, the HI power supply will work with any DC voltage from 90 to 300 V, or AC voltage from 70 to 265 V. The internal fuse may blow if the applied voltage exceeds this range. The 469 control power must match the installed switching power supply. If the applied voltage does not match, damage to the unit may occur! FIGURE 3–13: Control Power Connection Extensive filtering and transient protection are built into the 469 to ensure proper operation in harsh industrial environments. Transient energy must be conducted back to the source through the filter ground terminal. A separate safety ground terminal is provided for hi-pot testing. All grounds MUST be hooked up for normal operation regardless of control power supply type.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–13 3.2.4 Current Inputs Phase Current Inputs The 469 has three channels for phase current inputs, each with an isolating transformer. There are no internal ground connections on the current inputs. If the unit is withdrawn, each phase CT circuit is shorted by automatic mechanisms on the 469 case. The phase CTs should be chosen so the FLA is no less than 50% of the rated phase CT primary. Ideally, the phase CT primary should be chosen such that the FLA is 100% of the phase CT primary or slightly less, never more. This will ensure maximum accuracy for the current measurements. The maximum phase CT primary current is 5000 A. The 469 correctly measures up to 20 times the phase current nominal rating. Since the conversion range is large, 1 A or 5 A CT secondaries must be specified at the time of order to ensure the appropriate interposing CT is installed in the unit. The chosen CTs must be capable of driving the 469 phase CT burden (see Specifications on page 2–6 for ratings). Verify that the 469 nominal phase current of 1 A or 5 A matches the secondary rating and connections of the connected CTs. Unmatched CTs may result in equipment damage or inadequate protection. Polarity of the phase CTs is critical for Negative Sequence Unbalance calculation, power measurement, and residual ground current detection (if used). See Two-Phase CT Configuration on page 8–1 for 2-phase CT information. Ground Current Input The 469 has a dual primary isolating transformer for ground CT connection. There are no internal ground connections on the ground current inputs. The ground CT circuits are shorted by automatic mechanisms on the 469 case if the unit is withdrawn. The 1 A / 5 A tap is used either for zero-sequence / core balance applications or residual ground connections where the summation of the three phase current CTs is passed through the ground current input (see the figure below). The maximum ground CT primary current is 5000 A for the 1 A / 5 A tap. Alternatively, the 50:0.025 ground CT input has been designed for sensitive ground current detection on high resistance grounded systems where the GE Grid Solutions 50:0.025 core-balance CT is to be used. For example, in mining applications where earth leakage current must be measured for personnel safety, primary ground current as low as 0.25 A may be detected with the GE Grid Solutions 50:0.025 CT. Only one ground CT input tap should be used on a given unit.

CHAPTER 3: INSTALLATION FIGURE 3–14: Residual Ground CT Connection The 469 measures up to 5 A secondary current if the 1 A / 5 A tap is used. Since the conversion range is relatively small, the 1 A or 5 A option is field programmable. Proper selection of this settings ensures proper reading of primary ground current. The 1 A / 5 A ground CT chosen must be capable of driving the 469 ground CT burden (see Specifications on page 2–6). The 469 measures up to 25 A of primary ground current if this tap is used in conjunction with the GE Grid Solutions core balance CT. NOTE Note The zero-sequence connection is recommended. Unequal saturation of CTs, size and location of motor, resistance of power system and motor core saturation density, etc., may cause false readings in the residually connected GF circuit. NOTE Note Only one ground input should be wired – the other input should be unconnected. The exact placement of a zero-sequence CT to detect only ground fault current is shown below. If the core balance CT is placed over shielded cable, capacitive coupling of phase current into the cable shield during motor starts may be detected as ground current unless the shield wire is also passed through the CT window. Twisted pair cabling on the zero- sequence CT is recommended.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–15 FIGURE 3–15: Core Balance Ground CT Installation – Unshielded Cable FIGURE 3–16: Core Balance Ground CT Installation – Shielded Cable

CHAPTER 3: INSTALLATION Differential Current Inputs The 469 has three channels for differential current inputs, each with an isolating transformer. There are no internal ground connections on the current inputs. Each differential CT circuit is shorted by automatic mechanisms on the 469 case if the unit is withdrawn. The maximum differential CT primary current is 5000 A. The 469 measures up to 5 A secondary current for the differential CT inputs. Since the conversion range is relatively small, the 1 A or 5 A option is field programmable. Proper selection of this settings ensures proper reading of primary phase differential current. The 1 A / 5 A differential CT chosen must be capable of driving the 469 differential CT burden (see Specifications on page 2–6 for ratings). The differential CTs may be core balance as shown in the first figure below. Alternatively, the summation of two CTs per phase into the differential input will provide a larger zone of protection. If the summation of two CTs is used, observation of CT polarity is important. The summation method may also be implemented using the phase CTs as shown below. They will have to have the same CT ratio. FIGURE 3–17: Core Balance Method

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–17 FIGURE 3–18: Summation Method with Phase CTs FIGURE 3–19: Summation Method without Phase CTs (Phase CTs wiring is shown in Figure 3-12) 3.2.5 Voltage Inputs The 469 has three channels for AC voltage inputs, each with an isolating transformer. There are no internal fuses or ground connections on the voltage inputs. The maximum VT ratio is 300.00:1. The two VT connections are open delta (see FIGURE 3–12: Typical Wiring Diagram on page 3–11) or wye (see below). The voltage channels are connected in wye internally, which means that the jumper shown on the delta-source connection of the typical wiring diagram, between the phase B input and the 469 neutral terminal, must be installed for open delta VTs. C B A COM GROUND CURRENT INPUTS PHASE C 1A/5A 1A/5A COM PHASE A COM 1A/5A PHASE B 1A/5A GROUND COM COM DIFFERENTIAL INPUTS PHASE A COM 1A/5A COM 1A/5A PHASE B 806846A3.DWG COM 1A/5A PHASE C H10 G8 G6 H6 G7 H7 H8 G9 H9 G10 PHASE C CT PHASE A CT PHASE B CT MOTOR H3 G3 G4 H4 G5 H5 PHASE B CT DIFF. PHASE A CT PHASE C CT DIFF. DIFF. 50:.025

CHAPTER 3: INSTALLATION Polarity of the VTs is critical for correct power measurement and voltage phase reversal operation. A 1 A fuse is typically used to protect the inputs. FIGURE 3–20: Wye Voltage Transformer Connection 3.2.6 Digital Inputs NOTE Note The digital inputs of the 469 relay are designed for dry contact connection. In an application where the contact inputs need to be connected to the 469 relay digital inputs using long cable, it is recommended that you use interposing auxiliary contacts to interface between the 469 relay and the long digital input cable. This will help prevent the relay falsely sensing the digital input as "closed" due to induced voltage on the cables as a result of the capacitive effect. It is recommended that you use shielded twisted pair wires grounded at one end only, for digital inputs and avoid locating these wires in close to current carrying cables, contactors or other sources of high EMI. DO NOT INJECT VOLTAGES TO DIGITAL INPUTS. DRY CONTACT CONNECTIONS ONLY. There are 9 digital inputs designed for dry contact connections only. Two of the digital inputs (Access and Test) have their own common terminal; the balance of the digital inputs share one common terminal (see FIGURE 3–12: Typical Wiring Diagram on page 3–11). In addition, the +24 V DC switch supply is brought out for control power of an inductive or capacitive proximity probe. The NPN transistor output could be taken to one of the assignable digital inputs configured as a counter or tachometer. Refer to Specifications on

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–19 page 2–6 for maximum current draw from the +24 V DC switch supply. 3.2.7 Analog Inputs The 469 provides terminals for four 0 to 1mA, 0 to 20mA, or 4 to 20mA current input signals (field programmable). This current signal can be used to monitor external quantities such as vibration, pressure, or flow. The four inputs share one common return. Polarity of these inputs must be observed for proper operation The analog input circuitry is isolated as a group with the analog output circuitry and the RTD circuitry. Only one ground reference should be used for the three circuits. Transorbs limit this isolation to ±36 V with respect to the 469 safety ground. In addition, the +24 V DC analog input supply is brought out for control power of loop powered transducers. Refer to Specifications on page 2–6 for maximum current draw from this supply. FIGURE 3–21: Loop Powered Transducer Connection 3.2.8 Analog Outputs The 469 provides 4 analog output channels which may be ordered to provide a full-scale range of either 0 to 1 mA (into a maximum 10 kΩ impedance) or 4 to 20 mA (into a maximum 1200 Ω impedance). Each channel can be configured to provide full-scale output sensitivity for any range of any measured parameter. As shown in FIGURE 3–12: Typical Wiring Diagram on page 3–11, these outputs share one common return. Polarity of these outputs must be observed for proper operation. Shielded cable should be used, with only one end of the shield grounded, to minimize noise effects. The analog output circuitry is isolated as a group with the Analog Input circuitry and the RTD circuitry. Only one ground reference should be used for the three circuits. Transorbs limit this isolation to ±36 V with respect to the 469 safety ground.

CHAPTER 3: INSTALLATION If a voltage output is required, a burden resistor must be connected at the input of the SCADA measuring device. Ignoring the input impedance of the input, Rload = Vfull scale / Imax. For 0 to 1 mA, for example, if 5 V full scale is required to correspond to 1 mA, Rload = 5 V / 0.001 A = 5000 Ω. For 4 to 20 mA, this resistor would be Rload = 5 V / 0.020 A = 250 Ω. 3.2.9 RTD Sensor Connections Description The 469 monitors up to 12 RTD inputs for Stator, Bearing, Ambient, or Other temperature monitoring. The type of each RTD is field programmable as 100 Ω Platinum (DIN 43760), 100 Ω Nickel, 120 Ω Nickel, or 10 Ω Copper. RTDs must be three wire type. Every two RTDs shares a common return. The RTD circuitry compensates for lead resistance, provided that each of the three leads is the same length. Lead resistance should not exceed 25 Ω per lead for platinum/nickel RTDs or 3 Ω per lead for copper RTDs. Shielded cable should be used to prevent noise pickup in the industrial environment. RTD cables should be kept close to grounded metal casings and away from areas of high electromagnetic or radio interference. RTD leads should not be run adjacent to or in the same conduit as high current carrying wires. FIGURE 3–22: RTD Wiring NOTE Note IMPORTANT: The RTD circuitry is isolated as a group with the Analog Input circuitry and the Analog Output circuitry. Only one ground reference should be used for the three circuits. Transorbs limit this isolation to ±36 V with respect to the 469 safety ground. Reduced RTD Lead Number Application The 469 requires three leads to be brought back from each RTD: Hot, Return and Compensation. This can be quite expensive. It is however possible to reduce the number of leads required to 3 for the first RTD and 1 for each successive RTD. Refer to the figure below for wiring configuration for this application. ����� � ���� �������� ����� ��� ��������� �� ����� ������� ����� ���� ���������� �� ���� ��������� � ������ ����� � ���� ������� ����� ����� ����� �� �������� ������� ���� ������� �������� ���������� ��� �� ����� ������ �� ������� ������������ �� �� �� ��� �� ������������ ������ ������� ������ ������ ��� ������� ��� �� ��� �����

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–21 FIGURE 3–23: Reduced Wiring RTDs The Hot line would have to be run as usual for each RTD. The Compensation and Return leads, however, need only be run for the first RTD. At the motor RTD terminal box, the RTD Return leads must be jumpered together with as short as possible jumpers. The Compensation leads must be jumpered together at the 469. Note that an error is produced on each RTD equal to the voltage drop across the jumper on the RTD return. This error increases with each successive RTD added. VRTD1 = VRTD1 VRTD2 = VRTD2 + VJ3 VRTD3 = VRTD3 + VJ3 + VJ4, etc. This error is directly dependent on the length and gauge of the wire used for the jumpers and any error introduced by a poor connection. For RTD types other than 10 Ω Copper, the error introduced by the jumpers is negligible. Although this RTD wiring technique reduces the cost of wiring, the following disadvantages must be noted: 1. There will be an error in temperature readings due to lead and connection resistances. This technique is NOT recommended for 10 Ω Copper RTDs. 2. If the RTD Return lead to the 469 or any of the jumpers break, all RTDs from the point of the break will read open. 3. If the Compensation lead or any of the jumpers break, all RTDs from the point of the break will function without any lead compensation. Two-Wire RTD Lead Compensation An example of how to add lead compensation to a two wire RTD may is shown in the figure below. 808722A2.CDR Hot Compensation RTD Return Compensation Hot Hot Compensation RTD Return A1 A2 A3 A4 A5 A6 A7 A8 L1 L2 L3 L4 L5 L6 L7 No connection 469 J1 J2 Motor Control Terminal Box Motor RTD1 + – RTD2 + – RTD3 + – J3 J4

CHAPTER 3: INSTALLATION FIGURE 3–24: 2-Wire RTD Lead Compensation The compensation lead L2 is added to compensate for Hot (L1) and Return (L3), assuming they are all of equal length and gauge. To compensate for leads RL1 and RL2, a resistor equal to the resistance of RL1 or RL2 could be added to the compensation lead, though in many cases this is unnecessary. RTD Grounding Grounding of one lead of the RTDs is done at either the 469 or at the motor. Grounding should not be done in both places as it could cause a circulating current. Only RTD Return leads may be grounded. When grounding at the 469, only one Return lead need be grounded as they are hard-wired together internally. No error is introduced into the RTD reading by grounding in this manner. If the RTD Return leads are tied together and grounded at the motor, only one RTD Return lead can be run back to the 469. See the figure below for a wiring example. Running more than one RTD Return lead to the 469 causes significant errors as two or more parallel paths for the return current have been created. Use of this wiring scheme causes errors in readings equivalent to that in the Reduced RTD Lead Number application described earlier. FIGURE 3–25: RTD Alternate Grounding 3.2.10 Output Relays There are six (6) Form-C output relays (see Specifications on page 2–6 for details). Five of the six relays are always non-failsafe; 6 SERVICE is always failsafe. As failsafe, the 6 SERVICE relay is normally energized and de-energizes when called upon to operate. It also de-energizes when 469 control power is lost and will be in its operated state. All other 808719A1.CDR 469 Motor Control Terminal Box Motor Hot Compensation RTD Return A1 A2 A3 L1 L2 L3 Rcomp RTD1 RL1 RL2 + – 808720A2.CDR 469 Motor Control Terminal Box Motor Hot Compensation RTD Return A1 A2 A3 L1 L2 L3 Compensation Hot Hot Compensation RTD Return A4 A5 A6 A7 A8 L4 L5 L6 L7 No connection RTD1 + – RTD2 + – RTD3 + – J1 J2

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–23 relays, being non-failsafe, will normally be de-energized and energize when called upon to operate. When the 469 control power is lost, these relays are de-energized and in their non-operated state. Shorting bars in the drawout case ensure that no trip or alarm occurs when the 469 is drawn out. However, the 6 SERVICE output will indicate that the 469 has been drawn out. Each output relay has an LED indicator on the front panel that turns on when the associated relay is in the operated state. Relay contacts must be considered unsafe to touch when the 469 is energized! If the output relay contacts are required for low voltage accessible applications, it is the customer's responsibility to ensure proper insulation levels. • 1 TRIP: The trip relay should be wired to take the motor off line when conditions warrant. For a breaker application, the normally-open 1 TRIP contact should be wired in series with the Breaker trip coil. For contactor applications, the normally-closed 1 TRIP contact should be wired in series with the contactor coil. Supervision of a breaker trip coil requires that the supervision circuit be in parallel with the 1 TRIP relay output contacts. With this connection made, the supervision input circuits place an impedance across the contacts that draws a 2 mA current (for an external supply voltage from 30 to 250 V DC) through the breaker trip coil. The supervision circuits respond to a loss of this trickle current as a failure condition. Circuit breakers equipped with standard control circuits have a breaker auxiliary contact permitting the trip coil to be energized only when the breaker is closed. When these contacts are open, as detected by the Starter Status Digital Input monitoring breaker auxiliary contacts, trip coil supervision circuit is automatically disabled. This logic allows the trip circuit to be monitored only when the breaker is closed. • 2 AUXILIARY, 3 AUXILIARY: The auxiliary relays may be programmed for trip echo, alarm echo, trip backup, alarm differentiation, control circuitry, and numerous other functions. They should be wired as configuration warrants. • 4 ALARM: The alarm relay should connect to the appropriate annunciator or monitoring device. • 5 BLOCK START: This relay should be wired in series with the start pushbutton in either a breaker or contactor configuration to prevent motor starting. When a trip has not been reset on a breaker, the block start relay prevents a start attempt that would result in an immediate trip. Any lockout functions are also directed to the block start relay. • 6 SERVICE: The service relay operates if any of the 469 diagnostics detect an internal failure or on loss of control power. This output may be monitored with an annunciator, PLC or DCS. If it is deemed that a motor is more important than a process, the service relay normally-closed contact may also be wired in parallel with the trip relay on a breaker application or the normally-open contact may be wired in series with the trip relay on a contactor application. This will provide failsafe operation of the motor; that is, the motor will be tripped off line in the event that the 469 is not protecting it. If however, the process is critical, annunciation of such a failure will allow the operator or the operation computer to either continue, or do a sequenced shutdown. See the following figure for details.

CHAPTER 3: INSTALLATION FIGURE 3–26: Alternate Wiring for Contactors 3.2.11 Drawout Indicator The Drawout Indicator is simply a jumper from terminals E12 to F12. When the 469 is withdrawn from the case, terminals E12 and F12 are open. This may be useful for differentiating between loss of control power as indicated by the 6 SERVICE relay and withdrawal of the unit. 3.2.12 RS485 Communications Ports Two independent two-wire RS485 ports are provided. Up to 32 469s can be daisy-chained together on a communication channel without exceeding the driver capability. For larger systems, additional serial channels must be added. Commercially available repeaters can also be used to add more than 32 relays on a single channel. Suitable cable should have a characteristic impedance of 120 Ω (e.g. Belden #9841) and total wire length should not exceed 4000 ft. Commercially available repeaters will allow for transmission distances greater than 4000 ft. Voltage differences between remote ends of the communication link are not uncommon. For this reason, surge protection devices are internally installed across all RS485 terminals. Internally, an isolated power supply with an optocoupled data interface is used to prevent noise coupling. NOTE Note To ensure that all devices in a daisy-chain are at the same potential, it is imperative that the common terminals of each RS485 port are tied together and grounded only once, at the master. Failure to do so may result in intermittent or failed communications.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–25 The source computer/PLC/SCADA system should have similar transient protection devices installed, either internally or externally, to ensure maximum reliability. Ground the shield at one point only, as shown in the figure below, to avoid ground loops. Correct polarity is also essential. The 469s must be wired with all the ‘+’ terminals connected together and all the ‘–’ terminals connected together. Each relay must be daisy- chained to the next one. Avoid star or stub connected configurations. The last device at each end of the daisy chain should be terminated with a 120 Ω ¼-watt resistor in series with a 1 nF capacitor across the ‘+’ and ‘–’ terminals. Observing these guidelines provides a reliable communication system immune to system transients. FIGURE 3–27: RS485 Communications Wiring 3.2.13 Dielectric Strength It may be required to test a complete motor starter for dielectric strength (“flash” or “hipot”) with the 469 installed. The 469 is rated for 1.9 kV AC for 1 second, or 1.6 kV AC for 1 minute (per UL 508) isolation between relay contacts, CT inputs, VT inputs, trip coil supervision, and the safety ground terminal G12. Some precautions are required to prevent damage to the 469 during these tests. Filter networks and transient protection clamps are used between control power, trip coil supervision, and the filter ground terminal G11. This is intended to filter out high voltage transients, radio frequency interference (RFI), and electromagnetic interference (EMI). The filter capacitors and transient suppressors may be damaged by continuous high voltage. Disconnect the filter ground terminal G11 during testing of control power and trip coil supervision. The CT inputs, VT inputs, and output relays do not require any special precautions. Low voltage inputs (less than 30 V), RTDs, analog inputs, analog outputs, digital inputs, and RS485 communication ports are not to be tested for dielectric strength under any circumstance (see below). ������������ ����������������� �����������������

CHAPTER 3: INSTALLATION FIGURE 3–28: Testing for Dielectric Strength

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–27 3.2.14 2-Speed Motor Wiring

4–1 469 Motor Management Relay Chapter 4: Interfaces GE Grid Solutions Interfaces 4.1 Faceplate Interface 4.1.1 Description The front panel provides local operator interface with a liquid crystal display, LED status indicators, control keys, and program port. The display and status indicators update alarm and status information automatically. The control keys are used to select the appropriate message for entering settings or displaying measured values. The RS232 program port is also provided for connection with a computer running the EnerVista 469 Setup software. 4.1.2 Display The 40-character liquid crystal display allows visibility under varied lighting conditions. While the keypad and display are not being used, the screen will display system information by scrolling through a maximum of 20 user-selected default messages. These default messages will only appear after a user programmed period of inactivity. Pressing any key during default message scrolling will return the display to the last message shown before the default messages appeared. Any trip, alarm, or start block is displayed immediately, automatically overriding the default messages.

CHAPTER 4: INTERFACES 4.1.3 LED Indicators There are three groups of LED indicators. They are 469 Status, Motor Status, and Output Relays. FIGURE 4–1: 469 LED INDICATORS 469 Status LED Indicators • 469 IN SERVICE: This LED indicates that control power is applied, all monitored inputs/outputs and internal systems are OK, the 469 has been programmed, and the 469 is in protection mode, not simulation mode. This LED flashes when the 469 is in simulation or testing mode. • SETPOINT ACCESS: This LED indicates that the access jumper is installed and passcode protection has been satisfied; settings may be altered and stored. • COMPUTER RS232: This LED flashes when there is any activity on the communication port. The LED remains on solid if incoming data is valid. • COMPUTER RS485: Flashes when there is any activity on the communication port. Remains on solid if incoming data is valid and intended for the slave address programmed in the relay. • AUXILIARY RS485: Flashes when there is any activity on the communication port. Remains on solid if incoming data is valid and intended for the slave address programmed in the relay. • LOCKOUT: Indicates start attempts will be blocked either by a programmed lockout time or a condition that is still present. • RESET POSSIBLE: A trip or latched alarm may be reset. Press the RESET key to clear the trip or alarm. • MESSAGE: Flashes when a trip, alarm, or start block occurs. Pressing the MESSAGE keys scroll through diagnostic messages. This LED remains solid when settings and actual value messages are being viewed. Pressing the RESET key returns the display to the default messages. Under normal conditions, the default messages selected during settings programming are displayed. If any alarm or trip condition is generated, a diagnostic message overrides the displayed message and this indicator flashes. If there is more than one condition present, MESSAGE  can be used to scroll through the messages. Pressing any other key return to the normally displayed messages. While viewing normally displayed messages, the Message LED continues to flash if any diagnostic message is active. To return to the 806977A1.CDR

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 4–3 diagnostic messages from the normally displayed messages, press the MENU key until the following message is displayed. Now, press the MESSAGE  key followed by the MESSAGE  key to scroll through the messages. Note that diagnostic messages for alarms disappear with the condition while diagnostic messages for trips remain until cleared by a reset. Motor Status LED Indicators • STOPPED: The motor is stopped based on zero phase current and starter status auxiliary contact feedback. • STARTING: Motor is starting. • RUNNING: Motor is running normally below overload pickup level. • OVERLOAD: Motor is running above overload pickup. • UNBALANCE PICKUP: Level of current unbalance has exceeded the unbalance alarm or trip level. • GROUND PICKUP: Level of ground current has exceeded the ground fault alarm or trip level. • HOT RTD: One of the RTD measurements has exceeded its RTD alarm or trip level. • LOSS OF LOAD: Average motor current has fallen below the undercurrent alarm or trip level; or power consumption has fallen below the underpower alarm or trip level. Output Relay LED Indicators • 1 TRIP: The 1 TRIP relay has operated (energized). • 2 AUXILIARY: The 2 AUXILIARY relay has operated (energized). • 3 AUXILIARY: The 3 AUXILIARY relay has operated (energized). • 4 ALARM: The 4 ALARM relay has operated (energized). • 5 BLOCK START: The 5 BLOCK START relay has operated (energized). • 6 SERVICE: The 6 SERVICE relay has operated (de-energized, 6 SERVICE is failsafe, normally energized). 4.1.4 RS232 Port This port is intended for connection to a portable PC. Settings files may be created at any location and downloaded through this port with the EnerVista 469 Setup software. Local interrogation of settings and actual values is also possible. New firmware may also be downloaded to the 469 flash memory through this port. Upgrading of the relay firmware does not require a hardware EPROM change. 3. TARGET MESSAGES Press [] for more

CHAPTER 4: INTERFACES 4.1.5 Keypad Description The 469 display messages are organized into main menus, pages, and sub-pages. There are three main menus labeled settings, Actual Values, and Target Messages. Pressing the MENU key followed by the MESSAGE  key scrolls through the three main menu headers, which appear in sequence as follows: Pressing the MESSAGE  key or the ENTER key from these main menu pages will display the corresponding menu page. Use the MESSAGE  and MESSAGE  keys to scroll through the page headers. When the display shows SETTINGS, pressing the MESSAGE  key or the ENTER key will display the page headers of programmable parameters (referred to as settings in the manual). When the display shows ACTUAL VALUES, pressing the MESSAGE  key or the ENTER key displays the page headers of measured parameters (referred to as actual values in the manual). When the display shows TARGET MESSAGES, pressing the MESSAGE  key or the ENTER key displays the page headers of event messages or alarm conditions. Each page is broken down further into logical sub-pages. The MESSAGE  and MESSAGE  keys are used to navigate through the sub-pages. A summary of the settings and actual values can be found in the chapters 5 and 6, respectively. The ENTER key is dual purpose. It is used to enter the sub-pages and to store altered settings values into memory to complete the change. The MESSAGE  key can also be used to enter sub-pages but not to store altered settings. The ESCAPE key is also dual purpose. It is used to exit the sub-pages and to cancel a settings change. The MESSAGE  key can also be used to exit sub-pages and to cancel settings changes. The VALUE keys are used to scroll through the possible choices of an enumerated settings. They also decrement and increment numerical settings. Numerical settings may also be entered through the numeric keypad. Pressing the HELP key displays context-sensitive information about settings such as the range of values and the method of changing the settings. Help messages will automatically scroll through all messages currently appropriate. The RESET key resets any latched conditions that are not presently active. This includes resetting latched output relays, latched Trip LEDs, breaker operation failure, and trip coil failure. 1. SETPOINTS Press [] for more 2. ACTUAL VALUES Press [] for more 3. TARGET MESSAGES Press [] for more

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 4–5 The MESSAGE  and MESSAGE  keys scroll through any active conditions in the relay. Diagnostic messages are displayed indicating the state of protection and monitoring elements that are picked up, operating, or latched. When the Message LED is on, there are messages to be viewed with the MENU key by selecting target messages as described earlier. Entering Alphanumeric Text Text settings have data values that are fixed in length but user-defined in character. They may be comprised of upper case letters, lower case letters, numerals, and a selection of special characters. The editing and storing of a text value is accomplished with the use of the decimal [.], VALUE, and ENTER keys.  Move to message S3 DIGITAL INPUTS  ASSIGNABLE INPUT 1  INPUT 1 FUNCTION, and scrolling with the VALUE keys, select “General Sw. A”. The relay will display the following message:  Press the MESSAGE  key to view the SWITCH NAME settings. The name of this user-defined input will be changed in this example from the generic “General Sw. A” to something more descriptive. If an application is to be using the relay as a station monitor, it is more informative to rename this input “Station Monitor”.  Press the decimal [.] to enter the text editing mode. The first character will appear underlined as follows:  Press the VALUE keys until the character “S” is displayed in the first position.  Press the decimal [.] key to store the character and advance the cursor to the next position.  Change the second character to a “t” in the same manner.  Continue entering characters in this way until all characters of the text “Stn. Monitor” are entered. Note that a space is selected like a character. If a character is entered incorrectly, press the decimal [.] key repeatedly until the cursor returns to the position of the error. Re- enter the character as required.  Once complete, press the ENTER key to remove the solid cursor and view the result. Once a character is entered, by pressing the ENTER key, it is automatically saved in Flash Memory, as a new setting. INPUT 1 FUNCTION: General Sw. A SWITCH NAME: General Sw. A SWITCH NAME: Stn. Monitor

CHAPTER 4: INTERFACES The 469 does not have ‘+’ or ‘–’ keys. Negative numbers may be entered in one of two manners.  Immediately pressing one of the VALUE keys causes the settings to scroll through its range including any negative numbers.  After entering at least one digit of a numeric settings value, pressing the VALUE keys changes the sign of the value where applicable. 4.1.6 Settings Entry To store any settings, terminals C1 and C2 (access terminals) must be shorted (a keyswitch may be used for security). There is also a settings passcode feature that restricts access to settings. The passcode must be entered to allow the changing of settings values. A passcode of “0” effectively turns off the passcode feature - in this case only the access jumper is required for changing settings. If no key is pressed for 5 minutes, access to settings values will be restricted until the passcode is entered again. To prevent settings access before the 5 minutes expires, the unit may be turned off and back on, the access jumper may be removed, or the SETTINGS ACCESS settings may be changed to “Restricted”. The passcode cannot be entered until terminals C1 and C2 (access terminals) are shorted. When settings access is allowed, the settings Access LED indicator on the front of the 469 will be lit. Settings changes take effect immediately, even when motor is running. However, changing settings while the motor is running is not recommended as any mistake may cause a nuisance trip. The following procedure may be used to access and alter settings. This specific example refers to entering a valid passcode to allow access to settings if the passcode was “469”.  Press the MENU key to access the header of each menu, which will be displayed in the following sequence:  Press the MENU key until the display shows the header of the Settings menu.  Press the MESSAGE  or ENTER key to display the header for the first settings page. The set point pages are numbered, have an 'S' prefix for easy identification and have a name which gives a general idea of the settings available in that page. Pressing the MESSAGE  or MESSAGE  keys will scroll through all the available settings page headers. Settings page headers look as follows: 1. SETPOINTS Press [] for more 2. ACTUAL VALUES Press [] for more 3. TARGET MESSAGES Press [] for more  SETPOINTS [] S1 469 SETUP

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 4–7  To enter a given Setpoints page, press the MESSAGE  or ENTER key.  Press the MESSAGE  or MESSAGE  keys to scroll through sub- page headers until the required message is reached. The end of a page is indicated by the message END OF PAGE. The beginning of a page is indicated by TOP OF PAGE. Each page is broken further into subgroups.  Press MESSAGE  or MESSAGE  to cycle through subgroups until the desired subgroup appears on the screen.  Press the MESSAGE  or ENTER key to enter a subgroup. Each sub-group has one or more associated settings messages.  Press the MESSAGE  or ENTER key to enter the setting message.  Press the MESSAGE  or MESSAGE  keys to scroll through more settings messages, if applicable. The majority of settings are changed by pressing the VALUE keys until the desired value appears, and then pressing ENTER. Numeric settings may also be entered through the numeric keys (including decimals). If the entered settings is out of range, the original settings value reappears. If the entered settings is out of step, an adjusted value will be stored (e.g. 101 for a settings that steps 95, 100, 105 is stored as 100). If a mistake is made entering the new value, pressing ESCAPE returns the settings to its original value. Text editing is a special case described in detail in Entering Alphanumeric Text on page 4–5. Each time a new settings is successfully stored, a message will flash on the display stating NEW SETPOINT HAS BEEN STORED.  Press the 4, 6, 9 keys, then press ENTER. The following flash message is displayed: and the display returns to: 1. Press ESCAPE or MESSAGE  to exit the subgroup. Pressing ESCAPE or MESSAGE  numerous times will always return the cursor to the top of the page. 4.1.7 Diagnostic Messages Diagnostic messages are automatically displayed for any active conditions in the relay such as trips, alarms, or asserted logic inputs. These messages provide a summary of the present state of the relay. The Message LED flashes when there are diagnostic messages available; press the MENU key until the relay displays TARGET MESSAGES, then press the  PASSCODE [] ENTER PASSCODE FOR ACCESS: NEW SETPOINT HAS BEEN STORED SETPOINT ACCESS: Permitted

CHAPTER 4: INTERFACES MESSAGE  key, followed by the MESSAGE  key, to scroll through the messages. For additional information and a complete list of diagnostic messages, refer to Diagnostic Messages in Chapter 6. 4.1.8 Self-Test Warnings The 469 relay performs self test diagnostics at initialization (after power up) and continuously as a background task to ensure the hardware and software is functioning correctly. Self-test warnings indicate either a maintenance alert, or a minor or major problem. Maintenance alerts and minor problems are problems that does not compromise motor protection. Major problems are very serious problems that compromise all aspects of relay operation. Upon detection of either a minor or a major problem the relay will: • De-energize the self-test warning relay • Light the self-test warning LED • Flash a diagnostic message periodically on the display screen Upon detection of a maintenance alert, the relay will flash a diagnostic message on the screen, or record an event. The self-test relay remains energized and the service LED remains off. Table 4–1: Self-Test Warnings Message Severity Failure description Self-Test Warning 1 Replace Immediately Major Caused by detection of a corrupted location in the program memory as determined by a CRC error check. Any function of the relay is susceptible to malfunction from this failure. Self-Test Warning 2 Replace Immediately Major Caused by a failure of the analog to digital converter A/D1. The integrity of system input measurements is affected by this failure. Self-Test Warning 3 Replace Immediately Major Caused by a failure of the analog to digital converter A/D2. The integrity of system input measurements is affected by this failure. Self-Test Warning 5 Replace Immediately Major Caused by out of range reading of self-test RTD 13. The integrity of system input measurements is affected by this failure. Self-Test Warning 6 Replace Immediately Major Caused by out of range reading of self-test RTD 14. The integrity of system input measurements is affected by this failure. Self-Test Warning 7 Replace Immediately Major Caused by out of range reading of self-test RTD 15. The integrity of system input measurements is affected by this failure. Self-Test Warning 8 Replace Immediately Major Caused by out of range reading of self-test RTD 16. The integrity of system input measurements is affected by this failure. Self-Test Warning 9 Maintenance Alert Occurs if the microprocessor has reset unexpectedly and system input measurements were interrupted for at least 2 seconds. This warning appears in the event recorder.