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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-8446  Rev.3  P. 1 / 4

INSTRUCTION MANUAL

AC CURRENT INPUT MODULE

(8 points, isolated, clamp-on current sensor type CLSB use)

MODEL

R3-CT8B

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:

AC current input 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.

POINTS OF CAUTION

 

HOT SWAPPABLE MODULES

• Replacing the module does not affect other modules on 

the same base.  Thus, the module can be replaced while 
the power is ON.  However, replacing multiple modules 
at once may greatly change live voltage levels.  We highly 
recommend to replace them one by one.

 

GENERAL PRECAUTIONS

• 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.
• 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

• 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.

INSTALLATION

Use the Installation Base (model: R3-BSx).

Summary of Contents for R3-CT8B

Page 1: ...is ON However replacing multiple modules at once may greatly change live voltage levels We highly recommend to replace them one by one GENERAL PRECAUTIONS 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 When heavy dust or metal particles are present in the air install the unit inside proper housin...

Page 2: ...2 SW CONVERSION RATE 160 ms 80 ms 40 ms 20 ms SW3 1 OFF ON OFF ON SW3 2 OFF OFF ON ON Note Be sure to set unused SW1 5 through 1 8 SW2 5 through 2 8 SW3 3 and 3 4 to OFF STATUS INDICATOR LED RUN indicator Bi color red green LED Red when the bus A operates normally Green when the bus B operates normally Amber when both buses operate normally ERR indicator Bi color red green LED Red with input abnor...

Page 3: ...510 E mail info m system co jp EM 8446 Rev 3 P 3 4 TERMINAL CONNECTIONS Connect the unit as in the diagram below EXTERNAL DIMENSIONS unit mm inch TERMINAL COVER 5 19 20 21 22 15 16 17 18 23 24 25 26 27 28 6 7 8 9 10 11 12 13 14 1 2 3 4 130 5 12 27 5 1 08 109 4 29 POSITIONING GUIDE 28 M3 SCREW 6 2 24 ...

Page 4: ...SENSOR CLAMP ON SENSOR CLAMP ON SENSOR INPUT 5 15 16 INPUT 6 18 19 LOAD SOURCE k l LOAD SOURCE k INPUT 7 21 22 INPUT 8 24 25 LOAD SOURCE k LOAD SOURCE l CLAMP ON SENSOR CLAMP ON SENSOR CLAMP ON SENSOR CLAMP ON SENSOR k l l k WIRING INSTRUCTIONS SCREW TERMINAL Torque 0 5 N m SOLDERLESS TERMINAL Refer to the drawing below for recommended ring tongue terminal size Spade tongue type is also applicable...

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