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R3-SV4C

P.  / 3

EM-8409 Rev.2

DC VOLTAGE INPUT MODULE

(4 points, isolated, wide span voltage up to ±50V)

MODEL

R3-SV4C

INSTRUCTION MANUAL

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:

  DC voltage 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 INSERTION/REMOVAL OF MODULES

Removing or replacing modules does not affect other mod-
ules on the same backplane.  It is possible to replace them 
without  removing  the  power  supply.    However,  replacing 
multiple modules at once may greatly change line voltage 
levels.  We recommend that you replace them one by one.

 ENVIRONMENT

• Indoor use
• When heavy dust or metal particles are present in the air, 

install the unit inside proper housing with sufficient ven-
tilation.

• 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  (power  supply,  input  and  output) 

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.

 UNUSED INPUT CHANNELS

Set the unused channels to -50 – +50V range.  Otherwise, set 
them as “Unused” with PC Configurator software: R3CON.    
Unused channels left open with other settings may be equal 
to the input lower than -15%, which sets a data abnormality 
at the PLC or the host device.

 AND ....

The  unit  is  designed  to  function  as  soon  as  power  is  sup-
plied, however, a warm up for 10 minutes is required for sat-
isfying complete performance described in the data sheet.

INSTALLATION

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

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