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5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected]

EM-7818  Rev.2  P. 1 / 18

INSTRUCTION MANUAL

MULTI POWER MONITORING MODULE

(clamp-on current sensor CLSE, Ethernet Modbus/TCP)

MODEL

R7EWTU

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 module .........................................(1)

 

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. 
The R7EWTU is programmable by using the PC Configura-
tor Software.  For detailed information on the PC configura-
tion, refer to the PMCFG users manual.  The PMCFG PC 
Configurator Software is downloadable at M-System’s web 
site: http://www.m-system.co.jp

POINTS OF CAUTION

 

POWER INPUT RATING & OPERATIONAL RANGE

• Locate the power input rating marked on the product and 

confirm its operational range as indicated below:

    100 – 240V AC rating: 85 – 264V, 50/60 Hz, < 8VA
    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.

 

ENVIRONMENT

• Indoor use.
• 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.

Summary of Contents for R7EWTU

Page 1: ...stem co jp POINTS OF CAUTION POWER INPUT RATING OPERATIONAL RANGE Locate the power input rating marked on the product and confirm its operational range as indicated below 100 240V AC rating 85 264V 50 60 Hz 8VA 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 ENVIRONMENT Indoor use When heavy dust or metal p...

Page 2: ... Blinking Data collision 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 Three phase 4 wire Balanced or Unbalanced Load SW1 3 SW1 3 BALANCED UNBALANCED OFF Unbalanced ON Balanced Clamp Sensor Type SW1 4 5 6 Clamp sensor type setting is common to all circuits T...

Page 3: ...h 1K 1L 1 P1 Voltage Input P1 10 P3 Voltage Input P3 2 P2 Voltage Input P2 11 NC Unused 3 N Voltage Input N 12 NC Unused 4 1ch 1L Ch 1 Current input 1L 13 1ch 1K Ch 1 Current input 1K 5 1ch 2L Ch 1 Current input 2L 14 1ch 2K Ch 1 Current input 2K 6 1ch 3L Ch 1 Current input 3L 15 1ch 3K Ch 1 Current input 3K 7 2ch 1L Ch 2 Current input 1L 16 2ch 1K Ch 2 Current input 1K 8 2ch 2L Ch 2 Current input...

Page 4: ...6 4 7 13 8 9 14 12 15 11 16 17 18 P1 P3 N 1L 2L 3L DI2 DI4 COM NC COM NC 1K 2K 3K DI1 DI3 P2 3 1 5 10 2 6 4 7 13 8 9 14 12 15 11 16 17 18 P1 P3 N 1L 2L 3L NC NC 1K 2K 3K 1L 2L 3L 1K 2K 3K P2 3 1 Circuit 4 point Discrete Input 2 Circuits VOLTAGE INPUT 1ch CURRENT INPUT 2ch CURRENT INPUT 10 8 9 Modbus TCP Ethernet 6 1 2 7 3 FE1 NC NC NC NC NC NC NC 4 5 U V POWER INPUT Modular Jack 10 8 9 Modbus TCP ...

Page 5: ... L P1 P2 P3 1K 1L source load u v v u U V V U k l K L P1 P2 P3 1K 1L L1 source load L2 L3 k l K L P1 P2 1K 1L L1 source load N k l K L u v U V P1 P2 1K 1L L1 source load N k l K L System Application Single phase 2 wire Three phase 3 wire balanced load Caution Use CLSE for CT Grounding is unnecessary for low voltage circuit Single phase 3 wire Three phase 3 wire unbalanced load 2CT Terminal System ...

Page 6: ...ING 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 LINK100 LED blinks CHECK R7EWTU 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 byte...

Page 7: ...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 4943 2 Deactivate Modbus register writing protection Writing a preset passcode in this register deactivates the writing protection via Modbus When the Modbus passcode...

Page 8: ...ster setting cannot be changed from 0 to 1 or 2 unless a correct security code is set in the address 4943 5331 1 Reboot system Write 10001 to reboot the system Any other values can be written but invalid 5332 1 Backup restore setting 20002 Backup the present setting 30003 Restore the device with the backup setting data The register is automatically set to 0 when the procedure is complete after one...

Page 9: ...E 05 2 CLSE 10 3 CLSE 20 4 CLSE 40 5 CLSE 60 6 Reserved 7 Reserved 5604 2 VT rating Primary 50 to 400 000 Voltage V Factory setting 110 V 5606 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 ...

Page 10: ...etting 0 0 0 0 5745 1 Modbus TCP port No 0 to 65535 Factory setting 502 5746 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 second Factory setting 600 Sec 10 DEMAND SETTING ADDR WORD PARAMETER UNIT 5857 1 Average demand current update interval 0 External trigger signal 1 to 60 Minutes Factory s...

Page 11: ...MENTARY VALUE ADDR WORD ID PARAMETER UNIT Circuit 1 Circuit 2 1 4001 2 I Current mA 3 4003 2 U Voltage V 100 5 4005 2 P Active power W 7 4007 2 Q Reactive power var 9 4009 2 S Apparent power VA 11 4011 2 PF Power factor 1 10 000 13 4013 2 F Frequency Hz 100 15 4015 2 DIR Phase difference direction 0 inductive or lag 1 capacitive or lead 33 35 37 4033 4035 4037 2 I1 I2 I3 Current Line 1 Current Lin...

Page 12: ...eactive energy low tariff incoming outgoing kvarh 10 193 4193 2 EP_L Active energy fraction high tariff incoming kWh 10 232 195 4195 2 EQ_L Reactive energy fraction high tariff LAG kvarh 10 232 197 4197 2 ES_L Apparent energy fraction high tariff kVAh 10 232 199 4199 2 EP _L Active energy fraction high tariff outgoing kWh 10 232 201 4201 2 EQ _L Reactive energy fraction high tariff LEAD kvarh 10 2...

Page 13: ...7 309 311 4307 4309 4311 2 I1 AVG 3 I2 AVG 3 I3 AVG 3 Current AVG Line 1 History 3 Current AVG Line 2 History 3 Current AVG Line 3 History 3 mA mA mA 313 4313 2 IN AVG 3 Neutral current AVG History 3 mA 321 4321 2 I AVG 4 Current AVG History 4 mA 323 325 327 4323 4325 4327 2 I1 AVG 4 I2 AVG 4 I3 AVG 4 Current AVG Line 1 History 4 Current AVG Line 2 History 4 Current AVG Line 3 History 4 mA mA mA 3...

Page 14: ...e 3 1 10 000 1 10 000 1 10 000 865 867 869 2865 2867 2869 2 THD I1 MAX THD I2 MAX THD I3 MAX Current total harmonic distortion MAX Line 1 Current total harmonic distortion MAX Line 2 Current total harmonic distortion MAX Line 3 10 10 10 871 2871 2 THD IN MAX Neutral current total harmonic distortion MAX 10 873 875 877 2873 2875 2877 2 THD U12 MAX THD U23 MAX THD U31 MAX Delta voltage total harmoni...

Page 15: ...N S2 MIN S3 MIN Apparent power MIN Phase 1 Apparent power MIN Phase 2 Apparent power MIN Phase 3 VA VA VA 999 1001 1003 2999 3001 3003 2 PF1 MIN PF2 MIN PF3 MIN Power factor MIN Phase 1 Power factor MIN Phase 2 Power factor MIN Phase 3 1 10 000 1 10 000 1 10 000 TOTAL HARMONIC DISTORTION THD ADDR WORD ID PARAMETER UNIT Circuit 1 Circuit 2 1281 1283 1285 8281 8283 8285 2 THD I1 THD I2 THD I3 Curren...

Page 16: ...d 5th id 6th id 7th id 8th id 9th id 10th id 11th id 12th id 13th id 14th id 15th id 16th id 17th id 18th id 19th id 20th id 21st id 22nd id 23rd id 24th id 25th id 26th id 27th id 28th id 29th id 30th id 31st 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 1601 1630 8601 8630 1 HD I2 2 HD I2 31 Current harmonic Line 2 2nd 31st 10 1665 1694 8665 8694 1 HD ...

Page 17: ... added at 999 999 999 counts 3143 2 Discrete input 4 count Pulse train input at Discrete input 4 is counted The counter resets to 0 when a pulse is added at 999 999 999 counts DEVICE STATUS ADDR WORD PARAMETER 8001 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 U1N I1 U2N I2 I3 U3N U12 U23 U31 F I1 2 I2 2 I3 2 1 is placed at the bit where an overload is de...

Page 18: ...d 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 0010H Three phase 4 wire system 0080H LONWORKS 0100H CC Link 2000H Modbus TCP This register is read as follows depending upon model numbers R7LWTU 0090H 144 R7CWTU 0110H 272 R7MWTU 001...

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