M-system R9EWTU Instruction Manual

Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected] EM-6224  Rev.9  P. 1 / 21 INSTRUCTION MANUAL MULTI POWER MONITORING UNIT (clamp-on current sensor CLSE, Modbus/TCP) MODEL R9EWTU BEFORE USE .... Thank you for choosing M-System. Before use, please check contents of the package you received as outlined below. If you have any problems or questions with the product, please contact M-System’s Sales Office or representatives. ■PACKAGE INCLUDES: Multi power monitoring unit...............................................(1) Upper mounting adaptor.....................................................(2) ■MODEL NO. Confirm Model No. marking on the product to be exactly what you ordered. ■INSTRUCTION MANUAL This manual describes necessary points of caution when you use this product, including installation, connection and basic maintenance procedures. This unit is programmable by using the PC Configurator Software. For detailed information on the PC configuration, refer to the PMCFG users manual. The PMCFG PC Con- figurator Software is downloadable at M-System’s web site: http://www.m-system.co.jp POINTS OF CAUTION ■AUXILIARY POWER INPUT RATING & OPERATIONAL RANGE • Locate the auxiliary power input rating marked on the product and confirm its operational range as indicated below: 100 – 240V AC rating: 85 – 264V, 50/60 Hz, < 9VA 110 – 240V DC rating: 99 – 264V, < 3W ■GENERAL PRECAUTIONS • Before you remove or mount the unit, turn off the power supply and input signal for safety. • DO NOT set the switches on the module while the power is supplied. The switches are used only for maintenance without the power. ■ENVIRONMENT • Indoor use. • Do not install the unit where it is directly exposed to rain, water droplets or sunlight. • When heavy dust or metal particles are present in the air, install the unit inside proper housing with sufficient ventilation. • Do not install the unit where it is subjected to continuous vibration. Do not subject the unit to physical impact. • Environmental temperature must be within -10 to +55°C (14 to 131°F) with relative humidity within 30 to 90% RH in order to ensure adequate life span and operation. ■WIRING • Wiring to the unit must be conducted by qualified service personnel. • Do not install cables close to noise sources (relay drive cable, high frequency line, etc.). • Do not bind these cables together with those in which noises are present. Do not install them in the same duct. ■AND .... • The unit is designed to function as soon as power is sup- plied, however, a warm up for 10 minutes is required for satisfying complete performance described in the data sheet.

Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected] EM-6224  Rev.9  P. 2 / 21 COMPONENT IDENTIFICATION Terminal Block, Current Input 2 SD Card Slot PC Configurator Connection Jack RUN LINK LK100 COL Status Indicator LED Terminal Block, Current Input 1 RJ-45 Connector for Modbus/TCP (Ethernet) TOP VIEW FRONT VIEW Operating Mode Setting DIP SW (SW1) Terminal Block, Voltage Input / Auxiliary Power Supply T1 3K T2 3L 17 18 8 9 1K 3K 1L 3L 15 16 6 7 1K 3K 1L 3L 13 14 4 5 1K 3K 1L 3L 11 12 2 3 1K 1L 10 1 8ch 7ch 8ch 6ch 7ch 5ch 6ch 5ch 8ch 7ch 8ch 6ch 7ch 5ch 6ch 5ch NC 1L NC 1K 2 1 11 10 3L 1L 3K 1K 4 3 13 12 3L 1L 3K 1K 6 5 15 14 3L 1L 3K 1K 8 7 17 16 3L 3K 9 18 P1 4 U(+) V(−) P2 P3 2 1 6 5 FE1 N 3 7 1ch 2ch 1ch 3ch 2ch 4ch 3ch 4ch 1ch 2ch 1ch 3ch 2ch 4ch 3ch 4ch Unused ■STATUS INDICATOR LED ID COLOR STATE FUNCTION SDCard Red Blinking approx. 1 Hz The unit is preparing to write. The LED starts blinking 30 seconds before the unit starts writing in the SD card on the hour every hour. DO NOT extract the card while the LED shows the blinking pattern until the writing is complete. 2 sec. SD card access error. The unit is unable to normally write in the card because it is full or its data contents are damaged. 2 sec. SD card partial access error. The unit was unable to write in the card for unknown reason but now is recovered. A part of the data contents is missing. OFF SD card not inserted. ON SD card inserted. Blinking approx. 2 Hz The unit is writing in the SD card. DO NOT extract the card. Power Red ON Normal Blinking approx. 0.5 Hz Input overload or no input Blinking approx. 2 Hz Setting error or device error 2 sec. Internal calendar error or calendar backup battery life expired. Re-set the calendar with the PC Configurator. The LED blinks in the designated pattern every time when the power is turned on after the battery life has been expired. OFF Device error RUN Red ON Normal communication LINK Red ON 10BASE or 100BASE LINK LK100 Red Blinking 100BASE transmitting/receiving COL Red Blinking Collision

Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected] EM-6224  Rev.9  P. 3 / 21 ■OPERATING MODE SETTING (*) Factory setting • System Configuration (SW1-1, 2) SW1-1 SW1-2 SYSTEM CONFIGURATION OFF OFF Three-phase / 3-wire (*) ON OFF Single-phase / 2-wire OFF ON Single-phase / 3-wire ON ON --- • Balanced or Unbalanced Load (SW1-3) SW1-3 BALANCED / UNBALANCED OFF Unbalanced (*) ON Balanced • Clamp Sensor Type (SW1-4, 5, 6) SW1-4 SW1-5 SW1-6 CLAMP SENSOR TYPE OFF OFF OFF CLSE-R5 (5A) (*) ON OFF OFF CLSE-05 (50A) OFF ON OFF CLSE-10 (100A) OFF OFF ON CLSE-20 (200A) ON ON OFF CLSE-40 (400A) OFF ON ON CLSE-60 (600A) • Configuration Mode (SW1-8) SW1-8 CONFIGURATION MODE OFF DIP switch setting (*) (PC Configurator setting is invalid.) ON PC Configurator and communication (DIP switch setting is invalid.) Note 1: Turn on the power supply to the unit after setting operating mode. Note 2: Be sure to set unused SW1-7 to OFF. Note 3: Clamp sensor type setting is common to all circuits. Note 4: The sensor type and other settings for individual circuit can be performed on the PC Configurator or via Ethernet. ■TERMINAL ASSIGNMENTS 5 14 13 1L 1K 3K 4 3L 3 2 1 12 11 10 1L 3L 1L 1K 3K 9 18 17 T2 T1 3K 8 3L 7 6 16 15 6ch 6ch 7ch 5ch 5ch 8ch 7ch 8ch 6ch 6ch 7ch 5ch 5ch 8ch 7ch 8ch 1L 3L 1K 3K 1K 1 5ch 1L Ch.5, Current input 1L 10 5ch 1K Ch.5, Current input 1K 2 5ch 3L Ch.5, Current input 3L 11 5ch 3K Ch.5, Current input 3K 3 6ch 1L Ch.6, Current input 1L 12 6ch 1K Ch.6, Current input 1K 4 6ch 3L Ch.6, Current input 3L 13 6ch 3K Ch.6, Current input 3K 5 7ch 1L Ch.7, Current input 1L 14 7ch 1K Ch.7, Current input 1K 6 7ch 3L Ch.7, Current input 3L 15 7ch 3K Ch.7, Current input 3K 7 8ch 1L Ch.8, Current input 1L 16 8ch 1K Ch.8, Current input 1K 8 8ch 3L Ch.8, Current input 3L 17 8ch 3K Ch.8, Current input 3K 9 T2 Unused 18 T1 Unused 1 NC Unused 10 NC Unused 2 1ch 1L Ch.1, Current input 1L 11 1ch 1K Ch.1, Current input 1K 3 1ch 3L Ch.1, Current input 3L 12 1ch 3K Ch.1, Current input 3K 4 2ch 1L Ch.2, Current input 1L 13 2ch 1K Ch.2, Current input 1K 5 2ch 3L Ch.2, Current input 3L 14 2ch 3K Ch.2, Current input 3K 6 3ch 1L Ch.3, Current input 1L 15 3ch 1K Ch.3, Current input 1K 7 3ch 3L Ch.3, Current input 3L 16 3ch 3K Ch.3, Current input 3K 8 4ch 1L Ch.4, Current input 1L 17 4ch 1K Ch.4, Current input 1K 9 4ch 3L Ch.4, Current input 3L 18 4ch 3K Ch.4, Current input 3K 14 5 6 3K 3L 1L 15 1K 16 17 18 7 8 9 3K 1K 3K 3L 1L 10 1 2 NC NC 1L 11 1K 12 13 3 4 3ch 3ch 2ch 4ch 4ch 1ch 2ch 1ch 3ch 3ch 2ch 4ch 4ch 1ch 2ch 1ch 3K 1K 3L 1L 3L • Current Input 2 4 1 P1 U(+) 5 P2 6 2 3 P3 V(−) FE1 7 N No. ID FUNCTION 1 U(+) Auxiliary power (+) 2 V(−) Auxiliary power (−) 3 FE1 Power ground 4 P1 Voltage input P1 5 P2 Voltage input P2 6 P3 Voltage input P3 7 N Voltage input N • Auxiliary Power Supply, Voltage Input • Current Input 1 No. ID FUNCTION No. ID FUNCTION No. ID FUNCTION No. ID FUNCTION

Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected] EM-6224  Rev.9  P. 4 / 21 INSTALLATION ■WALL MOUNTING Attach the upper mounting adaptors to the upper side of the unit, and pull out the lower mounting adaptors from the lower side. Fasten a M4 screw through the mounting hole (4.5 mm dia.) of each adaptor. (torque 1.4 N∙m) To remove the upper mounting adaptor from the unit, pull it out while squeezing the latches as shown in the figure below. push push ■DIN RAIL MOUNTING Set the unit so that the lower mounting adaptors are at the bottom. Hook the upper hook at the rear side of the unit onto the DIN rail and push in the lower part of the unit. When removing the unit, pull out the unit while pushing down the adaptors using a minus screwdriver. DIN Rail (35 mm wide) Mounting Adaptor TERMINAL CONNECTIONS Connect the unit as in the diagram below. ■EXTERNAL DIMENSIONS unit: mm (inch) 6 (.24) 36−M3 SCREW TERMINAL 126 (4.96) 122 (DIN RAIL MOUNT) 115 (4.53) 140 (5.51) DIN RAIL 35 mm wide [4 (.16)] 6.5 (.25) 80 (3.15) 75 (2.95) 125 (4.92) 7.3 (.29) 7−M3.5 SCREW TERMINALS 4 − 4.5 (.18) dia. MTG HOLE

Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected] EM-6224  Rev.9  P. 5 / 21 ■CONNECTION DIAGRAM 5 6 4 7 8 9 1L 4 P1 5 6 7 P2 P3 N 11 1K 13 14 12 3K 15 16 17 18 2 3L 1 2 U(+) V(−) 3 FE1 3 VOLTAGE AUX. POWER SUPPLY VOLTAGE INPUT CURRENT INPUT 1 Ch. 1 CURRENT 1L 1K 3K 3L Ch. 2 CURRENT 1L 1K 3K 3L Ch. 3 CURRENT 1L 1K 3K 3L 1L 1K 3K 3L 1L 1K 3K 3L 1L 1K 3K 3L 1L 1K 3K 3L Ch. 4 CURRENT Ch. 5 CURRENT Ch. 6 CURRENT Ch. 7 CURRENT Ch. 8 CURRENT CURRENT INPUT 2 4 5 3 6 7 8 10 12 13 11 14 15 16 17 1 2 AUXILIARY POWER SUPPLY Modbus/TCP (Ethernet) RJ-45 CONNECTOR EXTENSION CONNECTOR

Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected] EM-6224  Rev.9  P. 6 / 21 ■INPUT WIRING Use the model CLSE clamp sensor for current inputs. The figure below shows only one circuit. A maximum of eight (8) current sensor inputs can be connected (Ch. 1 through Ch. 8). Grounding is not required for low voltage circuits. N 1K 1L 3K 3L L1 source load N L2 u v v u U V V U k l K L k l K L N 1K 1L 3K 3L L1 source load N L2 k l K L k l K L 1K 1L L1 source load L2 L3 u v v u U V V U k l K L 1K 1L L1 source load L2 L3 k l K L N 1K 1L L1 source load N k l K L u v U V N 1K 1L L1 source load N k l K L System / Application Single-phase / 2-wire Three-phase / 3-wire balanced load Single-phase / 3-wire 1K 1L 3K 3L L1 source load L2 L3 u v v u U V V U k l K L k l K L 1K 1L 3K 3L L1 source load L2 L3 k l K L k l K L Three-phase / 3-wire unbalanced load Terminal System / Application Terminal P1 P1 P1 P2 P3 P1 P2 P3 P1 P2 P3 P1 P2 P1 P3 P1 P3 P3 MOUNTING REQUIREMENTS unit: mm (inch) Pitch 130 (5.12) min. 126 (4.96) 75 (2.95) 4–M4 ■ SINGLE MOUNTING ■ BASIC + EXTENSION UNIT Pitch 223 (8.78) min. 126 (4.96) 75 (2.95) 70.5 (2.78) 6–M4

Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected] EM-6224  Rev.9  P. 7 / 21 WIRING INSTRUCTIONS ■SOLDERLESS TERMINAL Refer to the drawing below for recommended ring tongue terminal size. Spade tongue type is also applicable. • M3 Screw (current input) Applicable wire size: 0.25 to 1.65 mm2 (AWG22 to 16) Torque: 0.5 N∙m 3.3 max. (.13) 6 max. (.24) mm (inch) • M3.5 Screw (auxiliary power and voltage input) Applicable wire size: 1.04 to 2.63 mm2 (AWG16 to 14) Torque: 0.8 N∙m 3.8 max. (.15) 7 max. (.28) mm (inch) CHECKING ETHERNET CONNECTION ■IP ADDRESS The R9EWTU does not support BootP Table Software. The IP Address and Subnet Mask can be configured using the PMCFG Configurator Software. The Modbus/TCP Port No. is fixed at 502. ■NODE ADDRESS The R9EWTU firmware sets its Node Address to “01.” The Node Address (ID) is sent via Modbus together with data. Set “01” with the application software of the user. ■CHECK WIRING Connect an Ethernet cable to the RJ-45 connector. ■CHECK LED When wiring is correct, LINK LED is turned on with 10BASE or 100BASE link. When the module is receiving data with 100BASE, LK100 LED blinks. ■CHECK R9EWTU CONNECTION Enter “ping command” on the Windows MS-DOS as follows: C:¥WINDOWS>ping ***.***.***.*** (***.***.***.***: Enter IP address in decimal.) ping ***.***.***.*** with 32 bytes of data: Reply from ***.***.***.*** : bytes=32 time<10ms TTL=64 Reply from ***.***.***.*** : bytes=32 time<10ms TTL=64 Reply from ***.***.***.*** : bytes=32 time<10ms TTL=64 Reply from ***.***.***.*** : bytes=32 time<10ms TTL=64 Ping statistics for ***.***.***.*** Packets:Sent=4,Received=4,Lost=0(0% loss) Replies in case of normal connection are as shown above. If the connection cannot be established normally due to e.g. wrong IP address, other replies such as ‘time out’ will be received.

Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected] EM-6224  Rev.9  P. 8 / 21 MODBUS - OPERATIONS All registers are assigned to Holding Registers, which can be read out with Read Holding Registers or Read Input Registers command. If reading an address with no assigned register is attempted, ‘0’ is given. Write Multiple Registers command is used to write in registers. If writing an address with no assigned register is attempted, ‘Exception’ is given. FUNCTION COMMAND EXPLANATION RECOMMENDED TIME OUT VALUE 03 Read Holding Registers Used to read registers 0.5 seconds 04 Read Input Registers Used to read registers 0.5 seconds 16 Write Multiple Registers Used to write in registers 2 seconds These commands enable reading measured values and writing configurations. One (1) word registers are represented in 16-bit integers, while two (2) word registers are in 32-bit. All registers are in the form of signed integer unless specifically given in the explanations. The lower digit word in a 32-bit register is assigned to the lower address (n), while the upper digit word is assigned to the higher address (n+1). Address n n + 1 Contents Lower digit word Upper digit word The 32-bit register (2 words) must be read out and written in single command sequence. It is recommended to wait for a time period indicated under ‘recommended time out value’ in the above table to receive a response for a command. If no response is received for these time periods, take appropriate error processing such as retrying. ■MODBUS REGISTER ACCESS SETTING ADDR. WORD PARAMETER 8977 2 Passcode entry for deactivating Modbus register write protection Write a preset passcode in this register to deactivate the write protection via Modbus. When the value set in this register matches the preset passcode, ‘1’ is set in the register address 8979 to en- able writing in Modbus registers. The value set in this register cannot be read out. It reads always ‘-1’ regardless of the set value. When writing in the Modbus registers for setting change is complete, be sure to set a value (‘0’ is recom- mended) other than the passcode to activate the write protection again. 8979 1 Modbus register access setting 0 : Write disable (*) 1 : Write enable Other : Write disable This setting is cleared when the power supply to the unit is removed. It always starts with ‘0’ (Write dis- able) when the power supply is turned on. Set ‘1’ before writing in other registers. Note that ‘1’ (Write enable) cannot be written in this register when the Modbus register write protection passcode is preset and the write protection is enabled. Be sure to write the correct passcode in the register address 8977 before changing the register setting from ‘0’ (Write disable) to ‘1’ (Write enable). (*) Factory setting

Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected] EM-6224  Rev.9  P. 9 / 21 ■SYSTEM OPERATIONS System operations include resetting accumulated values and rebooting. ADDR. WORD PARAMETER 8993 1 Reboot system Write ‘10001’ to reboot the system. (Any other values can be written but invalid.) 8994 2 Setting Modbus register write protection passcode Set a passcode for enabling/disabling writing in registers via Modbus. 0 : Cancel write protection (*) 1 to 999 999 999: The set value is used as the passcode Write the passcode in the register address 8977 before setting ‘1’ in the address 8979 to deactivate the write protection. The value in this register is encrypted when it is read out. Only ‘0’ (Cancel write protection) is read out as it is. When a new passcode is written, the register address 8979 is immediately reset to ‘0’ so as to limit the next write command in access. 8996 1 Ch. 1 Reset count Resetting specific count values among the channel 1 counts by writing a bit pattern as shown below. Resetting is not executed for the bits set to ‘0.’ 15 Bit 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Current harmonic distortion, max. Voltage harmonic distortion, max. * Average power, max. / min. Average current, max. / min. Frequency, max. / min. Power factor, max. / min. Power, max. / min. Current, max. / min. Voltage, max. / min. Average power Average current Energy count per time unit Totalized energy *Resetting voltage related values is available only at Ch. 1. 8997 1 Ch. 2 Reset count 8998 1 Ch. 3 Reset count : : : 9003 1 Ch. 8 Reset count 9004 1 Ch. 9 Reset count (DI 1 Reset count) With the R9WTU-ED16 module, resetting specific count values among the DI 1 counts by writing a bit pat- tern as shown below. Resetting is not executed for the bits set to ‘0.’ 15 Bit 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Pulse count per time unit Totalized pulse count With the R9WTU-EP8 module, Ch. 9 bit pattern is identical to that for Ch. 1. 9005 1 Ch. 10 Reset count (DI 2 Reset count) 9006 1 Ch. 11 Reset count (DI 3 Reset count) : : : 9011 1 Ch. 16 Reset count (DI 8 Reset count)

Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected] EM-6224  Rev.9  P. 10 / 21 MODBUS - SETTING ■SYSTEM SETTING ADDR. WORD PARAMETER UNIT 9041 1 System configuration 0 : Single-phase / 2-wire (1CT) 1 : Single-phase / 3-wire (2CT) 2 : Three-phase / 3-wire, balanced load (1CT) 3 : Three-phase / 3-wire, unbalanced load (2CT) (*) --- 9042 1 Reserved 9043 1 Reserved 9044 2 VT rating, Primary 0 to 400 000 : Voltage (V) Factory setting : 110 V 9046 1 VT rating, Secondary 50 to 500 : Voltage (V) Factory setting : 110 The secondary can be set up to 500V. However, this does not mean the unit accepts 500V for input. Do not use with the condition exceeding input rating written in the specification sheet of the unit. V 9047 1 Reserved 9048 1 Reserved 9049 1 Low-end cutout, Voltage 0 to 999 : Rated voltage × 0.001 × Specified value Factory setting : 10 %/10 (*) Factory setting ■DEMAND SETTING ADDR. WORD PARAMETER UNIT 9057 1 Average (demand) current update interval 1 to 30 : Minutes Factory setting : 30 Data updated at the integral multiple minutes of the setting (e.g. Setting = 15 minutes, Updated at 0, 15, 30, and 45 minutes every hour) Minutes 9058 1 Average (demand) power update interval 1 to 30 : Minutes Factory setting : 30 Data updated at the integral multiple minute of the setting Minutes ■STYLE SETTING ADDR. WORD PARAMETER 9073 1 Power factor (PF1 through PF3, PF) sign 0 : Standard (IEC), Identical to the active energy (*) 1 : Special type 1 (IEEE), Positive in LAG, Negative in LEAD 9074 1 Reactive power (Q1 through Q3, Q) sign 0 : Standard (IEC), Positive from PF = 1.0 to 180° in LAG direction; Negative for the other direction (*) 1 : Special type 1, Positive in LAG, Negative in LEAD 9075 1 Reactive power (Q1 through Q3) calculation (Q = Q1 + Q2 + Q3) 0 : Standard (*) Qn = √Sn2 – Pn2 1 : Reactive power meter method Qn = 1 Nsmp Nsmp (Uni – Nui) Ii + (Nsmp / 4) ∑ i = 1 9076 1 Apparent power (S) calculation 0 : Standard (*) S = √P2 + Q2 1 : Sum S = S1 + S2 + S3 Note: ‘1,’ ‘2,’ ‘3’ in expressions like Q1, Q2, Q3 indicate ‘R,’ ‘S,’ ‘T phases’ respectively.

Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected] EM-6224  Rev.9  P. 11 / 21 ■MODBUS SETTING The device must be turned off and on in order to enable the Modbus setting. ADDR. WORD PARAMETER UNIT 9096 1 RUN LED time out RUN LED turns off if the unit receives no Modbus command for the specified time peri- od. 0 to 32 000 : Specified value × 0.1 seconds Factory setting : 10 Sec./10 9121 2 Modbus/TCP IP address IP address is stored in the form of ‘A.B.C.D’ in the following address: Address Upper Byte Lower Byte 9121 A B 9122 C D Factory setting : 192.168.0.1 --- 9123 2 Modbus/TCP subnet mask Subnet mask is stored in the form of ‘A.B.C.D’ in the following address: Address Upper Byte Lower Byte 9123 A B 9124 C D Factory setting : 255.255.255.0 --- 9125 2 Modbus/TCP default gateway Default gateway is stored in the form of ‘A.B.C.D’ in the following address: Address Upper Byte Lower Byte 9125 A B 9126 C D Factory setting : 0.0.0.0 --- 9127 1 Modbus/TCP port No. 0 to 65535 Factory setting : 502 --- 9128 1 Modbus/TCP connection time out Connection is severed if no communication is established for the specified time period. 0 to 32 000 : Specified value × 0.1 seconds Factory setting : 600 Sec./10 ■DATE/TIME SETTING The three registers must be written at once. ADDR. WORD PARAMETER 9105 3 Current date/time setting Reading/writing the current date and time. Data/time is stored in BCD format in the following address: Address b15 b8 b7 b0 9105 BCD Year (00 to 99) BCD Month (01 to 12) 9106 BCD Day (01 to 31) BCD Hour (00 to 23) 9107 BCD Minute (00 to 59) BCD Second (00 to 59)

Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected] EM-6224  Rev.9  P. 12 / 21 ■SENSOR SETTING ADDR. WORD PARAMETER UNIT 9393 1 Ch. 1 CT rating, Primary 1 to 20 000 : Current (A) Factory setting : 5 Valid only for the sensor type CLSE-R5. Selected sensor’s rating is automatically set for other types of sensors. A 9394 1 Ch. 1 Clamp sensor type 0 : CLSE-R5 (*) 1 : CLSE-05 2 : CLSE-10 3 : CLSE-20 4 : CLSE-40 5 : CLSE-60 6 : Reserved 7 : Reserved --- 9395 1 Low-end cutout, Current Ch. 1 0 to 999 : Rated current × 0.001 × Specified value Factory setting : 10 %/10 9396 1 Reserved 9397 : 9400 4 Ch. 2 setting Same as with the address 9393 through 9396 --- : : : 9543 : 9456 1 Ch. 16 setting Same as with the address 9393 through 9396 Ch. 9 through 16 are valid only when the R9WTU-EP8 is used. ---

Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected] EM-6224  Rev.9  P. 13 / 21 ■DEVICE STATUS ADDR. WORD PARAMETER 9537 1 Ch. 1 and Ch. 2 System error Bit assignment as shown below. 15 Bit 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 STAT AVG ENE SET FDT PRG PRG : Control software error FDT : Factory calibration data error SET : User setting data error ENE : Energy data error AVG : Average data error STAT : Maximum / minimum data error ‘1’ is placed when the respective errors are detected. All measuring operations stop while one or more sys- tem errors are detected. 9538 1 Ch. 3 and Ch. 4 System error Same as with the address 9537 : : : 9544 1 Ch. 15 and Ch. 16 System error Same as with the address 9537 Ch. 9 through 16 are valid only when the R9WTU-EP8 is used. 9545 1 Ch. 1 Input overload Bit assignment as shown below. 15 Bit 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 U31 F U23 U12 U3N U2N U1N I3 I2 I1 F : Frequency I1 : Line 1 current I2 : Line 2 current I3 : Line 3 current U1N : Phase 1 voltage U2N : Phase 2 voltage U3N : Phase 3 voltage U12 : Line 1 - 2 voltage U23 : Line 2 - 3 voltage U31 : Line 3 - 1 voltage ‘1’ is placed at the bit where an overload is detected. 9546 1 Ch. 2 Input overload Same as with the address 9545 : : : 9560 1 Ch. 16 Input overload Same as with the address 9545 Ch. 9 through 16 are valid only when the R9WTU-EP8 is used.

Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected] EM-6224  Rev.9  P. 14 / 21 ■DEVICE INFORMATION ADDR. WORD PARAMETER 9601 1 Device ID 9901 : R9xWTU 9602 1 Device version Version number × 100 (e.g. Version 1.00 = 100) 9603 4 Serial No. Each character is stored in the following address: Address Upper Byte Lower Byte 9603 2nd 1st 9604 4th 3rd 9605 6th 5th 9606 8th 7th 9607 8 Tag name This register is writable. Each character is stored in the following address: Address Upper Byte Lower Byte 9607 2nd 1st 9608 4th 3rd 9609 6th 5th 9610 8th 7th 9611 10th 9th 9612 12th 11th 9613 14th 13th 9614 16th 15th 9623 1 Extension function flag Reading the following values depending upon the function: 0002H : RS-485 (Modbus RTU) 0080H : LONWORKS 0100H : CC-Link 2000H : Modbus/TCP 9624 1 Number of discrete input 0 : None 8 : 8 points (with the R9WTU-ED16) 9625 1 Number of discrete output 0 : None 8 : 8 points (with the R9WTU-ED16) 9626 1 Reserved 9627 1 Number of circuits 8 : 8 circuits 16 : 16 circuits (with the R9WTU-EP8) 9628 1 Number of counters 0 : None 8 : 8 points (with the R9WTU-ED16)

Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected] EM-6224  Rev.9  P. 15 / 21 MODBUS - MAPPING ■PARAMETER TYPES TYPE WORD UNIT RANGE Current 2 mA 0 to 2 000 000 000 mA Voltage 2 V/100 0 to 20 000 000.00 V Active power 2 W -2 000 000 000 to 2 000 000 000 W Reactive power 2 var -2 000 000 000 to 2 000 000 000 var Apparent power 2 VA 0 to 2 000 000 000 VA Power factor 2 cos φ -1.0000 to 1.0000 Frequency 2 Hz/100 0 or 40.00 to 70.00 Hz Active energy 2 kWh/10 0 to 99 999 999.9 kWh *1 Reactive energy 2 kvarh/10 0 to 99 999 999.9 kvarh *1 Harmonic distortion 1 %/10 0 to 999.9 % Date/time 3 --- Each value is in BCD format. Year value represented in the offset from 2000. e.g. 100817160752h = Year 2010, August 17, 16:07:52 b48 b40 b39 b32 b31 b24 b23 b16 b15 b8 b7 b0 Year Month Day Hour Minute Second *1. Reset to 0 at overflow ■ADDRESS If base address and offset is given separately in the following tables, add both values to determine the address for a particular parameter. [Example] Ch. 1, Line 1 current, Present value = 65 + 0 = 65 Ch. 1, Line 1 current, Max. value = 65 + 10 = 75 • Voltage and Frequency PARAMETER PRESENT MAX MIN Delta voltage, 1 – 2 1 17 33 Delta voltage, 2 – 3 3 19 35 Delta voltage, 3 – 1 5 21 37 Phase voltage, Phase 1 7 23 39 Phase voltage, Phase 2 9 25 41 Phase voltage, Phase 3 11 27 43 Total voltage *2 13 29 45 Frequency 15 31 47 *2. Total voltage Single-phase/2-wire: Phase 1 voltage Single-phase/3-wire: (Phase 1 + 3) / 2 Three-phase/3-wire: {Delta (1 – 2) + (2 – 3) + (3 – 1)} / 3 • Current PARAMETER BASE ADDRESS BASIC UNIT Ch. 1 Current 65 Ch. 2 Current 97 Ch. 3 Current 129 Ch. 4 Current 161 Ch. 5 Current 193 Ch. 6 Current 225 Ch. 7 Current 257 Ch. 8 Current 289 R9WTU-EP8 Ch. 9 Current 321 Ch. 10 Current 353 Ch. 11 Current 385 Ch. 12 Current 417 Ch. 13 Current 449 Ch. 14 Current 481 Ch. 15 Current 513 Ch. 16 Current 545 PARAMETER OFFSET PRESENT MAX MIN Current, Line 1 +0 +10 +20 Current, Line 2 +2 +12 +22 Current, Line 3 +4 +14 +24 Neutral current +6 +16 +26 Total current *3 +8 +18 +28 *3. Total current Single-phase/2-wire: Line 1 current Single-phase/3-wire: (Line 1 + 3) / 2 Three-phase/3-wire: (Line 1 + 2 + 3) / 3

Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected] EM-6224  Rev.9  P. 16 / 21 • Power and Power Factor PARAMETER BASE ADDRESS BASIC UNIT Ch. 1 Power, Power factor 577 Ch. 2 Power, Power factor 673 Ch. 3 Power, Power factor 769 Ch. 4 Power, Power factor 865 Ch. 5 Power, Power factor 961 Ch. 6 Power, Power factor 1057 Ch. 7 Power, Power factor 1153 Ch. 8 Power, Power factor 1249 R9WTU-EP8 Ch. 9 Power, Power factor 1345 Ch. 10 Power, Power factor 1441 Ch. 11 Power, Power factor 1537 Ch. 12 Power, Power factor 1633 Ch. 13 Power, Power factor 1729 Ch. 14 Power, Power factor 1825 Ch. 15 Power, Power factor 1921 Ch. 16 Power, Power factor 2017 PARAMETER OFFSET PRESENT MAX MIN Active power, Phase 1 +0 +32 +64 Active power, Phase 2 +2 +34 +66 Active power, Phase 3 +4 +36 +68 Active power +6 +38 +70 Reactive power, Phase 1 +8 +40 +72 Reactive power, Phase 2 +10 +42 +74 Reactive power, Phase 3 +12 +44 +76 Reactive power +14 +46 +78 Apparent power, Phase 1 +16 +48 +80 Apparent power, Phase 2 +18 +50 +82 Apparent power, Phase 3 +20 +52 +84 Apparent power +22 +54 +86 Power factor, Phase 1 +24 +56 +88 Power factor, Phase 2 +26 +58 +90 Power factor, Phase 3 +28 +60 +92 Power factor +30 +62 +94 • Average (demand) (AVG) PARAMETER BASE ADDRESS BASIC UNIT Ch. 1 Average 2113 Ch. 2 Average 2257 Ch. 3 Average 2401 Ch. 4 Average 2545 Ch. 5 Average 2689 Ch. 6 Average 2833 Ch. 7 Average 2977 Ch. 8 Average 3121 R9WTU-EP8 Ch. 9 Average 3265 Ch. 10 Average 3409 Ch. 11 Average 3553 Ch. 12 Average 3697 Ch. 13 Average 3841 Ch. 14 Average 3985 Ch. 15 Average 4129 Ch. 16 Average 4273 PARAMETER OFFSET LATEST MAX MAX DATE/ TIME MIN MIN DATE/ TIME Current AVG date/time +0 Current AVG +3 +28 +30 +83 +85 Current AVG, Line 1 +5 +33 +35 +88 +90 Current AVG, Line 2 +7 +38 +40 +93 +95 Current AVG, Line 3 +9 +43 +45 +98 +100 Neutral current AVG +11 +48 +50 +103 +105 Power AVG date/time +13 Active power AVG +16 +53 +55 +108 +110 Reactive power AVG +18 +58 +60 +113 +115 Apparent power AVG +20 +63 +65 +118 +120

Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected] EM-6224  Rev.9  P. 17 / 21 • Energy / Pulse Count PARAMETER BASE ADDRESS BASIC UNIT Ch. 1 Energy 4417 Ch. 2 Energy 4481 Ch. 3 Energy 4673 Ch. 4 Energy 4737 Ch. 5 Energy 4929 Ch. 6 Energy 4993 Ch. 7 Energy 5185 Ch. 8 Energy 5249 EXTENSION UNIT R9WTU-EP8 R9WTU-ED16 BASE ADDRESS Ch. 9 Energy DI 1 Pulse count 5441 Ch. 10 Energy DI 2 Pulse count 5505 Ch. 11 Energy DI 3 Pulse count 5697 Ch. 12 Energy DI 4 Pulse count 5761 Ch. 13 Energy DI 5 Pulse count 5953 Ch. 14 Energy DI 6 Pulse count 6017 Ch. 15 Energy DI 7 Pulse count 6209 Ch. 16 Energy DI 8 Pulse count 6273 PARAMETER OFFSET BASIC UNIT R9WTU-EP8 R9WTU-ED16 Totalized energy Totalized pulse count +0 Totalized reactive energy (LAG) Reserved +2 Energy, last 1 hour Pulse count, last 1 hour +6 Energy, last 1 minute Pulse count, last 1 minute +8 Energy, 0 to 1 (o’clock) Pulse count, 0 to 1 (o’clock) +10 Energy, 1 to 2 Pulse count, 1 to 2 +12 Energy, 2 to 3 Pulse count, 2 to 3 +14 Energy, 3 to 4 Pulse count, 3 to 4 +16 Energy, 4 to 5 Pulse count, 4 to 5 +18 Energy, 5 to 6 Pulse count, 5 to 6 +20 Energy, 6 to 7 Pulse count, 6 to 7 +22 Energy, 7 to 8 Pulse count, 7 to 8 +24 Energy, 8 to 9 Pulse count, 8 to 9 +26 Energy, 9 to 10 Pulse count, 9 to 10 +28 Energy, 10 to 11 Pulse count, 10 to 11 +30 Energy, 11 to 12 Pulse count, 11 to 12 +32 Energy, 12 to 13 Pulse count, 12 to 13 +34 Energy, 13 to 14 Pulse count, 13 to 14 +36 Energy, 14 to 15 Pulse count, 14 to 15 +38 Energy, 15 to 16 Pulse count, 15 to 16 +40 Energy, 16 to 17 Pulse count, 16 to 17 +42 Energy, 17 to 18 Pulse count, 17 to 18 +44 Energy, 18 to 19 Pulse count, 18 to 19 +46 Energy, 19 to 20 Pulse count, 19 to 20 +48 Energy, 20 to 21 Pulse count, 20 to 21 +50 Energy, 21 to 22 Pulse count, 21 to 22 +5 Energy, 22 to 23 Pulse count, 22 to 23 +54 Energy, 23 to 24 Pulse count, 23 to 24 +56 Max. energy Max. pulse count +58 Max. energy data/time Max. pulse count date/time +60 • Voltage Harmonic Distortion (HD) PARAMETER PRESENT MAX Delta voltage HD, 1 – 2 6465 6473 Delta voltage HD, 2 – 3 6466 6474 Delta voltage HD, 3 – 1 6467 6475 Phase voltage HD, Phase 1 6468 6476 Phase voltage HD, Phase 2 6469 6477 Phase voltage HD, Phase 3 6470 6478 • Current Harmonic Distortion (HD) PARAMETER BASE ADDRESS BASIC UNIT Ch. 1 Current HD 6481 Ch. 2 Current HD 6489 Ch. 3 Current HD 6497 Ch. 4 Current HD 6505 Ch. 5 Current HD 6513 Ch. 6 Current HD 6521 Ch. 7 Current HD 6529 Ch. 8 Current HD 6537 R9WTU-EP8 Ch. 9 Current HD 6545 Ch. 10 Current HD 6553 Ch. 11 Current HD 6561 Ch. 12 Current HD 6569 Ch. 13 Current HD 6577 Ch. 14 Current HD 6585 Ch. 15 Current HD 6593 Ch. 16 Current HD 6601 PARAMETER OFFSET PRESENT MAX Current HD, Line 1 +0 +4 Current HD, Line 2 +1 +5 Current HD, Line 3 +2 +6 Neutral current HD +3 +7

Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected] EM-6224  Rev.9  P. 18 / 21 • Voltage Harmonic Content (HC) PARAMETER 3rd 5th ... 29th 31st Delta voltage HC, 1 – 2 6609 6610 ... 6622 6623 Delta voltage HC, 2 – 3 6625 6626 ... 6638 6639 Delta voltage HC, 3 – 1 6641 6642 ... 6654 6655 Phase voltage HC, Phase 1 6657 6658 ... 6670 6671 Phase voltage HC, Phase 2 6673 6674 ... 6686 6687 Phase voltage HC, Phase 3 6689 6690 ... 6702 6703 • Current Harmonic Content (HC) PARAMETER BASE ADDRESS BASIC UNIT Ch. 1 Current HC 6705 Ch. 2 Current HC 6769 Ch. 3 Current HC 6833 Ch. 4 Current HC 6897 Ch. 5 Current HC 6961 Ch. 6 Current HC 7025 Ch. 7 Current HC 7089 Ch. 8 Current HC 7153 R9WTU-EP8 Ch. 9 Current HC 7217 Ch. 10 Current HC 7281 Ch. 11 Current HC 7345 Ch. 12 Current HC 7409 Ch. 13 Current HC 7473 Ch. 14 Current HC 7537 Ch. 15 Current HC 7601 Ch. 16 Current HC 7665 PARAMETER OFFSET 3rd 5th ... 29th 31st Current HC, Line 1 +0 +1 ... +13 +14 Current HC, Line 2 +16 +17 ... +29 +30 Current HC, Line 3 +32 +33 ... +45 +46 Neutral current HC +48 +49 ... +61 +62 • Discrete Input (DI) ‘0’ is read if the R9WTU-ED16 is not used. ADDR. WORD LENGTH PARAMETER 7745 1 DI 1 Status 0 : OFF 1 : ON 7746 1 DI 2 Status 0 : OFF 1 : ON 7747 1 DI 3 Status 0 : OFF 1 : ON 7748 1 DI 4 Status 0 : OFF 1 : ON 7749 1 DI 5 Status 0 : OFF 1 : ON 7750 1 DI 6 Status 0 : OFF 1 : ON 7751 1 DI 7 Status 0 : OFF 1 : ON 7752 1 DI 8 status 0 : OFF 1 : ON

Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected] EM-6224  Rev.9  P. 19 / 21 • Pulse Count ‘0’ is read if the R9WTU-ED16 is not used. ADDR. WORD LENGTH PARAMETER 7777 2 DI 1 Pulse count Pulse train input at DI 1 is counted. The counter resets to 0 when a pulse is added at 999 999 999 counts. 7779 2 DI 2 Pulse count Pulse train input at DI 2 is counted. The counter resets to 0 when a pulse is added at 999 999 999 counts. 7781 2 DI 3 Pulse count Pulse train input at DI 3 is counted. The counter resets to 0 when a pulse is added at 999 999 999 counts. 7783 2 DI 4 Pulse count Pulse train input at DI 4 is counted. The counter resets to 0 when a pulse is added at 999 999 999 counts. 7785 2 DI 5 Pulse count Pulse train input at DI 5 is counted. The counter resets to 0 when a pulse is added at 999 999 999 counts. 7787 2 DI 6 Pulse count Pulse train input at DI 6 is counted. The counter resets to 0 when a pulse is added at 999 999 999 counts. 7789 2 DI 7 Pulse count Pulse train input at DI 7 is counted. The counter resets to 0 when a pulse is added at 999 999 999 counts. 7791 2 DI 8 Pulse count Pulse train input at DI 8 is counted. The counter resets to 0 when a pulse is added at 999 999 999 counts. • Discrete Output (DO) ‘Exception’ is given if the R9WTU-ED16 is not used. ADDR. WORD LENGTH PARAMETER 7841 1 DO 1 Output contact at the Extension Unit is turned on/off by writing in the address. 0 : OFF / 1 : ON 7842 1 DO 2 Output contact at the Extension Unit is turned on/off by writing in the address. 0 : OFF / 1 : ON 7843 1 DO 3 Output contact at the Extension Unit is turned on/off by writing in the address. 0 : OFF / 1 : ON 7844 1 DO 4 Output contact at the Extension Unit is turned on/off by writing in the address. 0 : OFF / 1 : ON 7845 1 DO 5 Output contact at the Extension Unit is turned on/off by writing in the address. 0 : OFF / 1 : ON 7846 1 DO 6 Output contact at the Extension Unit is turned on/off by writing in the address. 0 : OFF / 1 : ON 7847 1 DO 7 Output contact at the Extension Unit is turned on/off by writing in the address. 0 : OFF / 1 : ON 7848 1 DO 8 Output contact at the Extension Unit is turned on/off by writing in the address. 0 : OFF / 1 : ON

Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected] EM-6224  Rev.9  P. 20 / 21 DATA LOGGING IN SD CARD ■GENERAL DESCRIPTION The R9EWTU is equipped with a SD card slot. The unit transfers to the card at 0 minute every hour its in- ternal memory data: energy per hour; and voltage, current, power and energy per minute. A 4-GB SD card can store information of 8 channels for ap- prox. 16 years. ■TIMING Data recording is started from 0 minute of the hour when the card is inserted. For example, if it is inserted at 9:50, data from 9:00 to 10:00 is transferred to the card at 10:00, and later data is added every hour until the card is extracted. (If the unit has been started later than 9:00, data before the startup is not avail- able.) If the card is not in the unit on the hour, data transfer is not executed and the internal data is automatically erased until one is inserted to the unit again. The SDCard LED starts blinking 30 seconds before the hour every hour for noticing start of writing operation. DO NOT extract the card while the LED is blinking until the writing is complete. If the card is extracted or the power supply to the unit is turned off while it is writing, stored data may be destroyed and inaccessible. ■SD CARD Prepare one of the following types of memory card: • Manufacturer: Hagiwara Solutions Model: NSD6-004GH(A00SDI (discontinued), NSDA-004GT (discontinued), NSDA-004GL (discontinued), NSD6-004GH(B21SEI • Manufacturer: Apacer Technology Model: AP-ISD04GIS4B-T, AP-ISD04GIS4B-3T M-SYSTEM IS NOT LIABLE FOR ANY LOSS OF DATA. Data may be lost in but not limited to the following cases: • Wrong handling of the card • Static or electric noise interference • When the card is extracted or when the power supply to the unit is turned off while it is accessed. • When formatting SD card, use a dedicated software “SD Card Formatter”. “SD Card Formatter” is downloadable at SD Association’s web site. https://www.sdcard.org ■CALENDAR The incorporated calendar IC is backed up with a battery which enables the calendar backup for 2 years with no ex- ternal power supply. We recommend that the power supply is maintained as long as possible while the SD card is used. The battery does not wear while the external power is sup- plied, however, the calendar cannot be backed up after the total elapsed time without power supply exceeds 2 years. The unit indicates a calendar error with POWER LED, and resets the date and time to Year 2000, January 1, 00:00:00. Refer to “COMPONENT IDENTIFICATION” section. Set the date and time again in such a case. Once the backup battery life is expired, the unit indicates the same error every time the power supply to it is turned on. ■DIRECTORY XXXXXXXX Device 201004 201004.csv 201005 Month Month 20100401.csv 20100430.csv Log file, 1 hour interval Log file, 1 minute interval Log file, 1 minute interval ・ ・ ・ • Device Folder A data folder inherent to the device is automatically cre- ated, and monthly folders are created in it. Device folder is identified with the device’s serial number (8 characters). • Monthly Folder Monthly folders are identified with year (4 characters) and month (2 characters). All log files for the designated month are stored in it.

Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected] EM-6224  Rev.9  P. 21 / 21 • Log File, 1 Hour Interval Energy (watthour) and pulse counts per hour for each channel is stored on the hour every hour. Each data storage cycle takes 1 row, and at the maximum of 1 month data is stored in a CSV (divided with comma) format file. The first row of the file contains the data contents descriptions and the second contains the engineering unit descriptions. PARAMETER DATE TIME Ch. 1 Energy Ch. 2 Energy .... Ch. 8 Energy*1 DI 1 Pulse Count*2 DI 2 Pulse Count*2 .... DI 8 Pulse Count*2 Row 1 Comment Date Time 1ch-EP 2ch-EP 8ch-EP DI1-count DI2-count DI8-count Row 2 Unit kWh kWh kWh pulse pulse pulse Example 2010/08/25 10:00 123.4 123.4 123.4 4567 4567 4567 2010/08/25 11:00 123.4 123.4 123.4 4567 4567 4567 • Log File, 1 Minute Interval Voltage, current, power, energy (watthour), and pulse counts per minute for each channel is stored. Data transfer for the whole hour to the SD card is executed only at the same moment as for the hourly data. Each data storage cycle takes 1 row, and at the maximum of 1 day data is stored in a CSV (divided with comma) format file. The first row of the file contains the data contents descriptions and the second contains the engineering unit descriptions. PARAMETER DATE TIME Voltage 1 Voltage 2 Voltage 3 Ch.1 Current 1 Ch. 1 Current 2 Ch. 1 Current 3 Ch. 2 Current 1 .... Row 1 Comment Date Time U1 U2 U3 1ch-I1 1ch-I2 1ch-I3 2ch-I1 Row 2 Unit V V V A A A A Example 2010/08/25 10:00 110.00 110.00 110.00 5.000 5.000 5.000 5.000 2010/08/25 10:01 110.00 110.00 110.00 5.000 5.000 5.000 5.000 .... Ch. 8 Current 3*1 Ch. 1 Power Ch. 2 Power .... Ch. 8 Power*1 Ch. 1 Energy Ch. 2 Energy .... Ch. 8 Energy*1 DI 1 Pulse Count*2 DI 2 Pulse Count*2 .... DI 8 Pulse Count*2 8ch-I3 1ch-P 2ch-P 8ch-P 1ch-EP 2ch-EP 8ch-EP DI1-count DI2-count DI8-count A kW kW kW kWh kWh kWh pulse pulse pulse 5.000 1.650 1.650 1.650 12.3 12.3 12.3 456 456 456 5.000 1.650 1.650 1.650 12.3 12.3 12.3 456 456 456 *1. Up to 16 channels with the R9WTU-EP8 *2. DI pulse counts are recorded only with the R9WTU-ED16 Voltage and current data are assigned as in the following table. Three- phase / 3-wire Voltage 1 Delta voltage, 1 – 2 Single- phase / 3-wire Voltage 1 Phase voltage, Phase 1 Single- phase / 2-wire Voltage 1 Phase voltage, Phase 1 Voltage 2 Delta voltage, 2 – 3 Voltage 2 Phase voltage, Phase 3 Voltage 2 0 Voltage 3 Delta voltage, 3 – 1 Voltage 3 Delta voltage, 3 – 1 Voltage 3 0 Current 1 Current, Line 1 Current 1 Current, Line 1 Current 1 Current, Line 1 Current 2 Current, Line 2 Current 2 Current, Line 3 Current 2 0 Current 3 Current, Line 3 Current 3 Neutral current Current 3 0 LIGHTNING SURGE PROTECTION M-System offers a series of lightning surge protector for protection against induced lightning surges. Please contact M-System to choose appropriate models.