SICK ReLy EMSS1 Operating Instructions Manual

reserved for SICK AG. Reproduction of this document or parts of this document is only permissible within the limits of the legal determination of Copyright Law. Any modifica‐ tion, abridgment or translation of this document is prohibited without the express writ‐ ten permission of SICK AG. The trademarks stated in this document are the property of their respective owner. © SICK AG. All rights reserved. Original document This document is an original document of SICK AG. 2 O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 8020868/ZX84/2018-11-15 | SICK Subject to change without notice

5 1.1 Purpose of this document........................................................................ 5 1.2 Scope......................................................................................................... 5 1.3 Target groups and structure of these operating instructions................ 5 1.4 Additional information.............................................................................. 5 1.5 Symbols and document conventions...................................................... 6 2 Safety information............................................................................ 7 2.1 General safety notes................................................................................ 7 2.2 Intended use............................................................................................. 7 2.3 Improper use............................................................................................. 7 2.4 Requirements for the qualification of personnel.................................... 8 3 Product description........................................................................... 9 3.1 Construction and function........................................................................ 9 3.2 Product characteristics............................................................................ 9 3.2.1 Device overview....................................................................... 9 3.2.2 Interfaces................................................................................. 9 3.2.3 Compatible sensor types......................................................... 10 3.2.4 Restart interlock...................................................................... 10 3.2.5 External device monitoring...................................................... 10 3.2.6 Cross-circuit detection............................................................. 10 3.2.7 Status indicators...................................................................... 10 4 Project planning................................................................................ 12 4.1 Manufacturer of the machine.................................................................. 12 4.2 Operating entity of the machine.............................................................. 12 4.3 Design........................................................................................................ 12 4.4 Electrical integration................................................................................. 13 4.4.1 Enabling current paths............................................................ 13 4.4.2 Application diagnostic output................................................. 13 4.4.3 Restart interlock...................................................................... 14 4.4.4 External device monitoring (EDM).......................................... 14 4.4.5 Connection diagrams.............................................................. 15 4.5 Testing plan............................................................................................... 15 4.5.1 Minimum requirements for the regular thorough check....... 16 5 Mounting............................................................................................. 17 5.1 Safety......................................................................................................... 17 5.2 Mounting procedure................................................................................. 17 5.3 Disassembly.............................................................................................. 18 5.4 Device replacement.................................................................................. 18 6 Electrical installation........................................................................ 20 6.1 Device connection.................................................................................... 20 CONTENTS 8020868/ZX84/2018-11-15 | SICK O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 3 Subject to change without notice

24 9 Decommissioning............................................................................. 25 9.1 Protecting the environment...................................................................... 25 10 Technical data.................................................................................... 26 10.1 Data sheet................................................................................................. 26 10.2 Dimensional drawings.............................................................................. 30 10.3 Internal circuitry........................................................................................ 31 11 Ordering information........................................................................ 32 11.1 Ordering information for ReLy.................................................................. 32 12 Annex.................................................................................................. 33 12.1 Compliance with EU directives................................................................. 33 13 List of figures..................................................................................... 34 14 List of tables....................................................................................... 35 CONTENTS 4 O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 8020868/ZX84/2018-11-15 | SICK Subject to change without notice

1.1 Purpose of this document These operating instructions contain the information required during the life cycle of the safety relay. These operating instructions must be made available to everyone who works with the safety relay. 1.2 Scope This document only applies to a ReLy safety relay with the following type label entries in the Operating Instructions field: • 8020866 1.3 Target groups and structure of these operating instructions These operating instructions are intended for the following target groups: project devel‐ opers (planners, developers, designers), installers, electricians, safety experts (such as CE authorized representatives, compliance officers, people who test and approve the application), operators, and maintenance personnel. These operating instructions are organized by the life phases of the device: project planning, mounting, electrical installation, commissioning, operation and maintenance. The table below shows the target groups and how – for many applications – these are typically divided up between the manufacturer and the entity operating the machine in which the device is to be integrated: Area of responsibility Target group Specific chapters of these operating instruc‐ tions 1) Manufacturer Project developers (planners, developers, designers) "Project planning", page 12 "Technical data", page 26 Installers "Mounting", page 17 Electricians "Electrical installation", page 20 Safety experts "Project planning", page 12 "Commissioning", page 23 "Technical data", page 26 Operating entity Operators "Troubleshooting", page 24 Maintenance person‐ nel "Troubleshooting", page 24 "Ordering information", page 32 1) Chapters not listed here are intended for all target groups. All target groups must follow all of the safety and warning instructions in all chapters of the operating instructions! In other applications, the operating organization is also the manufacturer of the equip‐ ment with the corresponding allocation of the target groups. 1.4 Additional information www.sick.com The following information is available on the Internet: • This document in other languages • Data sheets and application examples • CAD data and dimensional drawings ABOUT THIS DOCUMENT 1 8020868/ZX84/2018-11-15 | SICK O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 5 Subject to change without notice

• Guide for Safe Machinery Six steps to a safe machine 1.5 Symbols and document conventions The following symbols and conventions are used in this document: Safety notes and other notes DANGER Indicates a situation presenting imminent danger, which will lead to death or serious injuries if not prevented. WARNING Indicates a situation presenting possible danger, which may lead to death or serious injuries if not prevented. CAUTION Indicates a situation presenting possible danger, which may lead to moderate or minor injuries if not prevented. NOTICE Indicates a situation presenting possible danger, which may lead to property damage if not prevented. NOTE Indicates useful tips and recommendations. Instructions to action b The arrow denotes instructions to action. 1. The sequence of instructions for action is numbered. 2. Follow the order in which the numbered instructions are given. ✓ The check mark denotes the result of an instruction. LED symbols These symbols indicate the status of an LED: o The LED is off. Ö The LED is flashing. O The LED is illuminated continuously. 1 ABOUT THIS DOCUMENT 6 O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 8020868/ZX84/2018-11-15 | SICK Subject to change without notice

DANGER If the safety component is integrated incorrectly, the dangerous state may be ended to late. b Plan the integration of the safety component in accordance with the machine requirements, see "Project planning", page 12. DANGER Hazard due to lack of effectiveness of the protective device In the case of non-compliance, it is possible that the dangerous state of the machine may not be stopped or not stopped in a timely manner. b Please read this document carefully and make sure that you understand the con‐ tent fully before working with the device. b Follow all safety notes in this document. Improper installation or manipulation can lead to serious injuries. 2.2 Intended use The safety relay is an evaluation unit for emergency stop pushbuttons and safety switches for switching safety-related circuits on and off. The safety relay complies with class A, group 1 as per EN 55011. Group 1 encom‐ passes all ISM devices in which intentionally generated and/or used conductor-bound RF energy that is required for the inner function of the device itself occurs. The safety relay must only be used within the limits of the prescribed and specified technical data and operating conditions at all times. Incorrect use, improper modification or manipulation of the safety relay will invalidate any warranty from SICK; in addition, any responsibility and liability of SICK for damage and secondary damage caused by this is excluded. UL/CSA applications If the product is being used in accordance with UL 508 or CSA C22.2 No. 14, the follow‐ ing conditions must also be met: • To protect the device’s 24-volt voltage supply, use a fuse with a maximum voltage of 4 A and a minimum of 30 V DC in accordance with UL 248. NOTE The safety functions have not be evaluated by UL. Authorization is in accordance with UL 508, general applications. 2.3 Improper use The safety relay is not suitable for the following applications (this list is not exhaustive): • At altitudes of over 4,000 m above sea level • In explosion-hazardous areas SAFETY INFORMATION 2 8020868/ZX84/2018-11-15 | SICK O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 7 Subject to change without notice

The protective device must be configured, installed, connected, commissioned, and ser‐ viced by qualified safety personnel only. Project planning For project planning, a person is considered competent when he/she has expertise and experience in the selection and use of protective devices on machines and is familiar with the relevant technical rules and national work safety regulations. Mechanical mounting, electrical installation, and commissioning For the task, a person is considered qualified when he/she has the expertise and expe‐ rience in the relevant field and is sufficiently familiar with the application of the protec‐ tive device on the machine to be able to assess whether it is in an operationally safe state. Operation and maintenance For operation and maintenance, a person is considered competent when he/she has the expertise and experience in the relevant field and is sufficiently familiar with the application of the protective device on the machine and has been instructed by the machine operator in its operation. 2 SAFETY INFORMATION 8 O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 8020868/ZX84/2018-11-15 | SICK Subject to change without notice

The safety relay ReLy EMSS1 is an electrical switching device with inputs and outputs. The safety capable inputs of the safety relay are connected to safety sensors or safety switches. 2 safety capable inputs control the internal relays, which are used to reliably switch the enabling current paths. The enabling current paths close only when the two safety capable inputs close within 3 s of one another. Actuators with positively guided contacts are connected to the enabling current paths. 3.2 Product characteristics 3.2.1 Device overview PWR OUT 13 23 I1 Y1 14 24 I2 Y2 A2 RELY 1 2 3 4 S1 X1 A1 R1 X2 Figure 1: Device overview 1 Device unlocking 2 LEDs 3 Front connector unlocking 4 Front connector 3.2.2 Interfaces Inputs • 2 safety capable inputs • Input for reset pushbutton or external device monitoring Outputs • 2 enabling current paths (safe) • 2 application diagnostic outputs (not safe) • 3 test outputs (not safe) PRODUCT DESCRIPTION 3 8020868/ZX84/2018-11-15 | SICK O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 9 Subject to change without notice

The safety relay is suitable for safety sensors and safety switches with volt-free output contacts, e.g.: • Dual-channel safety command devices (emergency stop pushbutton, rope pull switch, etc.) • Dual-channel, contact-based interlocking devices (safety locking devices and safety switches) • Dual-channel, magnetic safety switches with reed contacts 3.2.4 Restart interlock A restart interlock can be implemented with a reset pushbutton. 3.2.5 External device monitoring Permanent external device monitoring can be implemented using external wiring. 3.2.6 Cross-circuit detection A cross-circuit is detected on the safety capable inputs. 3.2.7 Status indicators LEDs PWR OUT 13 23 I1 Y1 14 24 I2 Y2 A2 RELY S1 X1 A1 R1 X2 PWR OUT 13 23 I1 Y1 14 24 I2 Y2 A2 RELY R1 A1 S1 X1 X2 EMSS1 1085345 Figure 2: LEDs The labeled positions are only partially assigned LEDs. The positions and their labeling (except for the upper 2 lines) also show the pin assignment of the terminals on the front connector. Table 1: Safety relay indicators Labeling Color Function PWR Green/Red Voltage supply OUT Green Enabling current paths I1 Green Safety capable input I2 Green Safety capable input S1 Green Reset pushbutton input, exter‐ nal device monitoring (EDM) 3 PRODUCT DESCRIPTION 10 O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 8020868/ZX84/2018-11-15 | SICK Subject to change without notice

Y2 Green Application diagnostic output (reset required) Further topics • "Status indicator (LED)", page 24 PRODUCT DESCRIPTION 3 8020868/ZX84/2018-11-15 | SICK O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 11 Subject to change without notice

DANGER Failure to comply with manufacturer’s obligations Hazard due to lack of effectiveness of the protective device b Carry out a risk assessment before using the safety relay. b Do not manipulate, open or modify the components of the safety relay. b Make sure the safety relay is only repaired by the manufacturer or by someone authorized by the manufacturer. Improper repair can lead to a loss of the protec‐ tive function. 4.2 Operating entity of the machine DANGER Failure to observe operator obligations Hazard due to lack of effectiveness of the protective device b Changes to the machine and changes to the mechanical mounting of the safety relay necessitate a new risk assessment. The results of this risk assessment may require the entity operating the machine to meet the obligations of a manufac‐ turer. b Apart from the procedures described in this document, the components of the safety relay must not be opened or modified. b Do not carry out any repair work on components. Improper repair of the safety relay can lead to a loss of the protective function. 4.3 Design The safety relay must be installed in a control cabinet with an enclosure rating of IP54 or higher. The safety relay must be installed on a mounting rail (35 mm) in accordance with IEC 60715. Space requirements in the control cabinet To ensure sufficient air circulation and cooling, sufficient distance must be kept in the control cabinet above and below the safety relay. Sufficient distance must be kept for the connected cables before the safety relay (front side). 4 PROJECT PLANNING 12 O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 8020868/ZX84/2018-11-15 | SICK Subject to change without notice

Required distance: • Above and below the safety relay: ≥ 50 mm • In front of the safety relay: ≥ 25 mm 4.4 Electrical integration Important information DANGER Hazard due to lack of effectiveness of the protective device In the case of non-compliance, it is possible that the dangerous state of the machine may not be stopped or not stopped in a timely manner. b Ensure the safety relay is supplied with supply voltage in all operating statuses. b Ensure that the supply voltage of the safety relay is not connected via safety sen‐ sors or safety switches in order to switch the enabling current paths. 4.4.1 Enabling current paths DANGER Hazard due to lack of effectiveness of the protective device b Ensure the enabling current paths are supplied by the same voltage supply. 4.4.2 Application diagnostic output Application diagnostic output Y1 The signal of the Y1 application diagnostic output changes as soon as the enabling cur‐ rent paths switch. The application diagnostic output is not safe. PROJECT PLANNING 4 8020868/ZX84/2018-11-15 | SICK O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 13 Subject to change without notice

State of enabling current paths State of application diagnostic output Y1 Closed 0 V Open 24 V Application diagnostic output Y2 Application diagnostic output Y2 outputs the “Reset required” signal with a frequency of 1 Hz, e.g. for the connection of a signal lamp. 4.4.3 Restart interlock Important information DANGER Hazard due to unexpected starting of the machine Death or severe injury If you connect the safety relay to an emergency stop pushbutton, you must use the restart interlock. Restart interlock A reset pushbutton must be connected to allow the restart interlock to be used. The reset pushbutton must be attached outside of the hazardous area. It must not be possi‐ ble to access the reset pushbutton from inside the hazardous area. The entire haz‐ ardous area must be highly visible for all operators from the reset pushbutton. Further topics • "Device connection", page 20 4.4.4 External device monitoring (EDM) External device monitoring (EDM) With static external device monitoring, the safety relay tests whether the controlled actuators (contactors) have dropped out when the device is switched on. Further topics • "Device connection", page 20 4 PROJECT PLANNING 14 O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 8020868/ZX84/2018-11-15 | SICK Subject to change without notice

0 V k2 k1 Reset F0 E210667/00/2018-11-15 State RES Figure 4: ReLy EMSS1 connection diagram, with restart interlock and external device monitoring (EDM) K2 K1 X1 Y1 Y2 24 X2 A2 14 I1 I2 S1 A1 R1 23 13 RLY3-EMSS1 F2 F1 L+ L– +24 V DC 0 V k2 k1 F0 E210668/00/2018-11-15 State 2 4 1 3 RE13 Figure 5: ReLy EMSS1 connection diagram, without restart interlock, with external device moni‐ toring (EDM) 4.5 Testing plan The safety relay must be thoroughly checked by appropriately qualified safety personnel during commissioning, after modifications, and at regular intervals, see "Thorough check", page 23. PROJECT PLANNING 4 8020868/ZX84/2018-11-15 | SICK O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 15 Subject to change without notice

identify defects as a result of modifications or other influences (e.g., damage or manip‐ ulation). The manufacturer and user must define the type and frequency of the thorough checks on the machine on the basis of the application conditions and the risk assessment. Determination of the thorough checks must be documented in a traceable manner. 4.5.1 Minimum requirements for the regular thorough check The following thorough checks must be carried out at regular intervals: • Thorough check of the housing for damage • Thorough check of the cables for damage • Thorough check of the safety relay for signs of misuse or manipulation • Thorough check of the safety function The minimum test interval depends on the applicable safety capability of the overall application, see table 5, page 26. 4 PROJECT PLANNING 16 O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 8020868/ZX84/2018-11-15 | SICK Subject to change without notice

Hazard due to electrical voltage b Make sure that the outputs of the safety relay have no effect on the machine dur‐ ing mounting and electrical installation. b Make sure that the safety relay and the connected components are isolated from all voltage sources during mounting and electrical installation of the device and during mounting/dismantling of the front connector. NOTICE Enclosure rating IP20 only applies if the front connector is mounted. 5.2 Mounting procedure Prerequisites • Mounting is done in accordance with EN 50274 and electrical installation in accordance with IEC 60204-1 in the control cabinet with enclosure rating IP54. • Mounting is done on a 35 mm mounting rail (IEC 60715). • The mounting rail is connected to the functional earth. • The safety relay is installed in a vertical orientation (on a horizontal mounting rail). • There is at least 50 mm of space for air circulation above and below the safety relay. • There is at least 25 mm of space in front of the safety relay (front side). More space may be needed depending on the connections. Approach Click Figure 6: Mounting b Attach safety relay to mounting rail. MOUNTING 5 8020868/ZX84/2018-11-15 | SICK O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 17 Subject to change without notice

1. Press the unlocking mechanism on the upper side of the safety relay towards the back. 2. Loosen safety relay from the mounting rail. 5.4 Device replacement Overview In event of a defect, exchange the device and reuse the front connector with the con‐ nected cables. Approach 1. Disconnect device and the connected components from all voltage sources. 2. Take front connector with connected cables off the defective device: Press the unlocking mechanism of the front connector downwards and pull out the front con‐ nector. 5 MOUNTING 18 O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 8020868/ZX84/2018-11-15 | SICK Subject to change without notice

3. Remove the defective device. 4. Mount new device. 5. Mount front connector with connected cables to the new device: First mount in the device with bent hook and then engage in the housing. Click 13 16 15 Figure 9: Mounting the front connector ✓ The front connector engages with an audible click. MOUNTING 5 8020868/ZX84/2018-11-15 | SICK O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 19 Subject to change without notice

In the case of non-compliance, it is possible that the dangerous state of the machine may not be stopped or not stopped in a timely manner. b Ensure the safety relay is supplied with supply voltage in all operating statuses. b Ensure that the supply voltage of the safety relay is not connected via safety sen‐ sors or safety switches in order to switch the enabling current paths. DANGER Hazard due to unexpected starting of the machine Hazard due to electrical voltage b Make sure that the outputs of the safety relay have no effect on the machine dur‐ ing mounting and electrical installation. b Make sure that the safety relay and the connected components are isolated from all voltage sources during mounting and electrical installation of the device and during mounting/dismantling of the front connector. NOTICE Enclosure rating IP20 only applies if the front connector is mounted. Prerequisites • Electrical installation is done in conformity with IEC 60204-1. • The mounting rail is connected to the functional earth. • The voltage supply and connected signals meet the requirements for safety extra- low voltage (EN 61140) or NEC Class 2 (UL 1310). • The external voltage supply must be capable of bridging a brief power failure of 20 ms as specified in IEC 60204-1. Suitable power supply units are available as accessories from SICK. • The safety outputs and external device monitoring (EDM) must be wired within the control cabinet. • When using the safety relay with voltages larger than the safety extra-low voltage: The N/C contacts of the controlled contactors must be safely isolated from the other contactor contacts. • Contact fuse with safety fuse gG or circuit breaker C: 6 A, maximum short-circuit protection I ≤ 400 A. • The ground connection of all connected devices must have the same potential as A2. • All connected devices and the reset pushbutton comply with the required category in accordance with ISO 13849-1 and SILCL in accordance with IEC 62061 (e.g. shielded single sheathed cables, separate installation). 6 ELECTRICAL INSTALLATION 20 O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 8020868/ZX84/2018-11-15 | SICK Subject to change without notice

Table 3: Pin assignment of the terminals Terminal Description 13, 14 1) 2) Enabling current path 23, 24 1) 2) Enabling current path I1 3) Safety capable input I2 3) Safety capable input S1 2) 4) Reset pushbutton input, external device monitoring (EDM) R1 Test pulse output X1 3) Test pulse output X2 3) Test pulse output Y1 Application diagnostic output (NC) Y2 Application diagnostic output (reset required) A1 Voltage supply 24 V DC A2 Voltage supply 0 V DC 1) The enabling current paths must be supplied by the same voltage supply. 2) The enabling current path and external device monitoring (EDM) must be wired within the control cabinet. 3) Connect dual-channel switching elements of the safety sensors between X1 and I1 or X2 and I2. 4) • Use with restart interlock, with external device monitoring (EDM): Connect the N/C contacts of the actuators between voltage supply Uv, the N/O contact of the reset pushbutton and S1. • Use with restart interlock, without external device monitoring (EDM): Connect the N/O contact of the reset pushbutton between S1 and voltage supply UV. • Use without restart interlock, with external device monitoring (EDM): Connect the N/C contacts of the actuators between R1 and S1. • Use without restart interlock, without external device monitoring (EDM): Connect R1 and S1 with a wire jumper. Complementary information To protect and increase the service life of contact outputs, equip all connected loads with varistors or RC elements. The response times will increase depending on the sup‐ pressor used. ELECTRICAL INSTALLATION 6 8020868/ZX84/2018-11-15 | SICK O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 21 Subject to change without notice

6 ELECTRICAL INSTALLATION 22 O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 8020868/ZX84/2018-11-15 | SICK Subject to change without notice

During commissioning, the machine or the protective device may not yet behave as you have planned. b Make sure that there is no-one in the hazardous area during commissioning. 7.2 Thorough check Requirements for the thorough check during commissioning and in certain situations The device and its application must be thoroughly checked in the following situations: • Before commissioning • After changes to the configuration or the safety function • After changes to the mounting or the electrical installation • After exceptional events, such as after manipulation has been detected, after modification of the machine, or after replacing components The thorough check ensures the following: • All relevant regulations are complied with and the device is effective in all of the machine’s operating modes. • The documentation accurately reflects the state/condition of the machine, includ‐ ing the protective device. The thorough checks must be carried out by qualified safety personnel or specially qual‐ ified and authorized personnel, and must be documented in a traceable manner. COMMISSIONING 7 8020868/ZX84/2018-11-15 | SICK O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 23 Subject to change without notice

In the case of non-compliance, it is possible that the dangerous state of the machine may not be stopped or not stopped in a timely manner. b Immediately shut the machine down if the behavior of the machine cannot be clearly identified. b If a machine fault cannot be definitively determined or safely rectified, immediately shut the machine down. b Secure the machine so that it cannot switch on unintentionally. NOTE Additional information on troubleshooting can be found at the responsible SICK sub‐ sidiary. 8.2 Status indicator (LED) Table 4: Fault indicators and operational statuses LED Status Possible cause PWR o No supply voltage All LEDs Ö All colors Initialization with LED test PWR O Green No fault PWR Ö Red • Supply voltage too low temporarily or per‐ manently • Internal error PWR Ö Red/green Error Additional LEDs flash for accurate diagnosis. OUT o Enabling current paths open OUT O Green Enabling current paths closed OUT Ö Green Error in enabling current path S1 Ö Green When using without restart interlock: Input error (e.g. stuck at HIGH) S1 O Green Reset pushbutton actuated, N/C contact of the actuator closed I1 and I2 Ö Green, alternate Input error: discrepancy time expired I1 and I2 Ö Green, simultane‐ ous Input error: cross-circuit, process error Y1 o Enabling current paths closed Y1 O Green Enabling current paths open Y2 o Output with LOW status Y2 Ö Green Reset required Y2 O Green Reset pushbutton actuated 8 TROUBLESHOOTING 24 O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 8020868/ZX84/2018-11-15 | SICK Subject to change without notice

The device has been designed to minimize its impact on the environment. It consumes only a minimum of energy and natural resources. b Always act in an environmentally responsible manner at work. For this reason, please note the following information regarding disposal. Always dispose of serviceableness devices in compliance with local/national rules and regulations with respect to waste disposal. NOTE We will be glad to help you dispose of these devices on request. DECOMMISSIONING 9 8020868/ZX84/2018-11-15 | SICK O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 25 Subject to change without notice

Desired safety integrity level (IEC 61508) 1) SIL3 SIL2 SIL1 SIL claim limit (IEC 62061) SILCL3 SILCL2 SILCL1 Cate‐ gory (ISO 13849-1) 4 3 3 Performance level (ISO 13849-1) PL e PL d PL c Hardware error toler‐ ance 1 Maximum test interval of the safety function 1 month 1 year – MTTFD (single chan‐ nel) (ISO 13849-1) 300 years 100 years 100 years PFHD (mean probability of a dangerous failure per hour) 2) For operating heights ≤ 2,000 m above sea level 1 × 10-9 1 × 10-8 1 × 10-7 For operating heights 2,000... 4,000 m above sea level 5 × 10-9 5 × 10-8 1 × 10-7 PFDavg (mean probability of a dangerous failure on demand) 2) For operating heights ≤ 2,000 m above sea level 5 × 10-5 5 × 10-4 5 × 10-3 For operating heights 2,000... 4,000 m above sea level 2.5 × 10-4 2.5 × 10-3 5 × 10-3 TM (mission time) 20 years (ISO 13849-1) Safe status when a fault occurs The normally open is open; in other words, the safety-related enabling current paths are interrupted. Stop category 0 (IEC 60204-1) 1) The required safety integration level depends on your application. 2) If service life curve is adhered to, see figure 12, page 30. Table 6: Mechanical data Weight 130 g Mounting Mounting rail (IEC 60715) Connection type Spring terminals Stripping length 8 mm Wire cross-section Single wire (1×) 0.2 mm2 … 1.5 mm2 Fine wire (1×) 0.2 mm2 … 1.5 mm2 10 TECHNICAL DATA 26 O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 8020868/ZX84/2018-11-15 | SICK Subject to change without notice

same cross-section) ≤ 0.5 mm2 Fine wire with ferrules with or without collar (1×) 0.25 mm2 … 1.0 mm2 For UL and CSA applications 26 AWG … 14 AWG (use only copper wire (60/75 °C)) Table 7: Electrical data - operating data Supply voltage UV 24 V DC (16,8 V DC … 30 V DC) (safety extra- low voltage) 1) 2) Rated voltage 24 V DC Residual ripple Uss 2.4 V Power consumption ≤ 1.3 W Power-up delay after supply voltage applied ≤ 5 s 1) The external voltage supply must be capable of bridging a brief power failure of 20 ms as specified in IEC 60204-1. Suitable power supply units are available as accessories from SICK. Protect supply voltage against short-circuit. 2) For use according to the requirements of ANSI/UL 508, ANSI/UL 60947-5-1 and ANSI/UL 60947-1, volt‐ age supply UV must be protected with 4 A. Table 8: Electrical data - inputs (I1, I2, S1) Input voltage HIGH 24 V DC (11 V DC … 30 V DC) Input voltage LOW 0 V DC (–3 V DC … 5 V DC) Input capacity ≤ 15 nF Input current 4 mA … 6 mA Reset time Manual ≤ 250 ms Automatic ≤ 250 ms Actuation time of reset button 140 ms ... 30 s Minimum power-up delay 1) 80 ms Minimum switch-off time 2) 5 ms Concurrence monitoring ≤ 3,000 ms Length of cable (single) ≤ 100 m 1) Time in which an input signal must have the HIGH status before the outputs switch. 2) Time in which an input signal must have the LOW status before the outputs switch. Table 9: Electrical data - test pulse outputs (X1, X2, R1) Type of output PNP semiconductor output, short-circuit pro‐ tected Output voltage (UV – 3 V) … UV Test pulse interval 40 ms Test pulse width 2 ms Length of cable (single) ≤ 100 m Cable resistance ≤ 10 Ω Table 10: Electrical data - application diagnostic output (Y1, Y2) Type of output PNP semiconductor output, short-circuit pro‐ tected TECHNICAL DATA 10 8020868/ZX84/2018-11-15 | SICK O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 27 Subject to change without notice

Output current ≤ 120 mA Table 11: Electrical data - enabling current paths (13, 14, 23, 24) Response time Dual-channel switch-off with positive open‐ ing normally closed contacts 10 ms Dual-channel switch off (without positive opening, e.g. reed switch) 14 ms 1) Minimum switch-off time 2) 100 ms Number of enabling current paths (normally open, safe) 2 Contact type Positively guided Contact material Silver alloy, gold flash plated Switching voltage At altitudes up to 2,000 m above sea level 10 V DC … 250 V DC 10 V AC … 250 V AC At altitudes 2,000 m above sea level … 4,000 m above sea level 10 V DC … 150 V DC 10 V AC … 150 V AC Switching current 10 mA … 6 A, see figure 11, page 29, see figure 12, page 30 Sum current: ≤ 12 A Utilization category AC-15: 230 V, 5 A (IEC 60947-5-1) DC-13 (0.1 Hz): 24 V, 4 A (IEC 60947-5-1) DC switching capacity 0.1 W … 200 W, see figure 11, page 29 AC switching capacity 0.1 VA … 1,500 VA Switching frequency ≤ 1 Hz Mechanical service life 10 × 106 Switching operations Contact fuse with safety fuse gG or circuit breaker C 6 A Max. short-circuit protection ≤ 400 A Rated insulation voltage At altitudes up to 2,000 m above sea level 250 V AC At altitudes up to 2,000 m above sea level … 4,000 m above sea level 150 V AC Overvoltage category III Contamination degree 2 Rated impulse withstand voltage Uimp 6 kV 1) Applies to devices with version ≥ V1.10.0 in the “HW” type label entry. With devices with smaller version numbers or without the “HW” type label entry: Response time ≤ 12 ms; response time with simultaneous dual-channel switch-off = 10 ms. 2) Time the enabling current paths of the safety relay remain open before closing again. Table 12: Ambient data Enclosure rating IP20 (IEC 60529) Ambient operating temperature At altitudes up to 2,000 m above sea level (UL/CSA: surrounding air temperature) –25 °C … +55 °C 10 TECHNICAL DATA 28 O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 8020868/ZX84/2018-11-15 | SICK Subject to change without notice

3,000 m above sea level –25 °C to 50 °C At altitudes 3,000 m above sea level … 4,000 m above sea level –25 °C … +45 °C Storage temperature –25 °C … +70 °C Permissible operating height ≤ 4,000 m Air humidity 10% … 95%, non-condensing for climatic con‐ ditions according to IEC 61131-2 Emitted interference In accordance with IEC 61000-6-4 Immunity to interference In accordance with IEC 61326-3-1 In accordance with IEC 61000-6-2 In accordance with IEC 60947-5-1 0,1 0,5 1,0 5,0 10 0 50 100 150 200 250 U (VDC) → I (A) → 1 2 Figure 11: Switch-off delay without continuous arcing 1 Inductive load L/R 40 ms 2 Resistive load TECHNICAL DATA 10 8020868/ZX84/2018-11-15 | SICK O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 29 Subject to change without notice

AC 1: 230V AC 15: 230V DC 13: 24V Figure 12: Electrical service life 1 Switching operations × 1,000 2 Switching current (A) 10.2 Dimensional drawings 64,4 120,7 124,6 128,3 85,5 87,7 18 20,1 78,7 Figure 13: Dimensional drawing 10 TECHNICAL DATA 30 O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 8020868/ZX84/2018-11-15 | SICK Subject to change without notice

TECHNICAL DATA 10 8020868/ZX84/2018-11-15 | SICK O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 31 Subject to change without notice

Table 13: Ordering information Part Usage Type code Part number ReLy EMSS1 Interlock safety switch RLY3-EMSS1 1085345 11 ORDERING INFORMATION 32 O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 8020868/ZX84/2018-11-15 | SICK Subject to change without notice

EU declaration of conformity (extract) The undersigned, representing the manufacturer, herewith declares that the product is in conformity with the provisions of the following EU directive(s) (including all applicable amendments), and that the standards and/or technical specifications stated in the EU declaration of conformity have been used as a basis for this. Complete EU declaration of conformity for download You can call up the EU declaration of conformity and the current operating instructions for the protective device by entering the part number in the search field at www.sick.com (part number: see the type label entry in the “Ident. no.” field). ANNEX 12 8020868/ZX84/2018-11-15 | SICK O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 33 Subject to change without notice

1. Device overview.............................................................................................................9 2. LEDs.............................................................................................................................10 3. Distances in control cabinet...................................................................................... 13 4. ReLy EMSS1 connection diagram, with restart interlock and external device moni‐ toring (EDM)................................................................................................................ 15 5. ReLy EMSS1 connection diagram, without restart interlock, with external device monitoring (EDM)........................................................................................................15 6. Mounting..................................................................................................................... 17 7. Disassembly................................................................................................................18 8. Dismantling front connector...................................................................................... 19 9. Mounting the front connector....................................................................................19 10. Terminals on front connector.....................................................................................21 11. Switch-off delay without continuous arcing...............................................................29 12. Electrical service life...................................................................................................30 13. Dimensional drawing..................................................................................................30 14. Internal circuitry..........................................................................................................31 13 LIST OF FIGURES 34 O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 8020868/ZX84/2018-11-15 | SICK Subject to change without notice

1. Safety relay indicators................................................................................................ 10 2. Switching behavior of application diagnostic output Y1.......................................... 14 3. Pin assignment of the terminals................................................................................21 4. Fault indicators and operational statuses................................................................ 24 5. Safety-related parameters......................................................................................... 26 6. Mechanical data......................................................................................................... 26 7. Electrical data - operating data..................................................................................27 8. Electrical data - inputs (I1, I2, S1).............................................................................27 9. Electrical data - test pulse outputs (X1, X2, R1).......................................................27 10. Electrical data - application diagnostic output (Y1, Y2)........................................... 27 11. Electrical data - enabling current paths (13, 14, 23, 24)........................................ 28 12. Ambient data...............................................................................................................28 13. Ordering information.................................................................................................. 32 LIST OF TABLES 14 8020868/ZX84/2018-11-15 | SICK O P E R A T I N G I N S T R U C T I O N S | ReLy EMSS1 35 Subject to change without notice

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