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R8-PS1

P. 1 / 4

EM-9789 Rev.2

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN

Phone: +81(6)6659-8201   Fax: +81(6)6659-8510   E-mail: info@m-system.co.jp

EXTENSION POWER SUPPLY MODULE

(non-isolated)

MODEL

R8-PS1

INSTRUCTION MANUAL

BEFORE USE ....

Thank you for choosing M-System. Before use, check the 
contents of the package you received as below.
If you have any problems or questions with the product, 
please contact M-System’s Sales Office or representatives.

■ 

PACKAGE INCLUDES:

  Extension power supply module ................................. (1)

 MODEL NO.

Confirm that the model number described on the product is 
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

 CONFORMITY WITH EU DIRECTIVES

• The equipment must be mounted inside a panel.
• The actual installation environments such as panel con

-

figurations, connected devices and connected wires may 
affect the protection level of this unit when it is integrated 
in a panel system.  The user may have to review the CE 
requirements in regard to the whole system and employ 
additional protective measures to ensure CE conformity.

 POWER INPUT RATING & OPERATIONAL RANGE

• Locate the power input rating marked on the product and 

confirm its operational range as indicated below:

  DC Power supply: Rated voltage 24V DC
     

24V DC 

±

 10%, approx. 11W 

     

(@ internal power max. current 1.6 A)

  Excitation supply (excitation for I/O module):
     

24V DC 

±

 10%, operational current 10 A

  

(From power supply (exitation supply) connector, via con-
nector for internal bus, supplied to eacsh I/O module.  
Power output current consumption must be under opera-
tional current.)

 GENERAL PRECAUTIONS

• Before you remove or mount the unit, turn off the power 

supply and output 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 ven-
tilation.

• Do not install the unit where it is subjected to continuous 

vibration.  Do not apply physical impact to the unit.

• 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.

 POWER UP

• Turn the power on at the same time as the power/network 

module or turn the R8-PS1 on before the power/network 
module turned on. If the R8-PS1 is not turned on within 3 
seconds after the power/network module is turned on, I/O 
modules are not correctly recognized.

INSTALLATION

 HOW TO MOUNT THE MODULE ON DIN RAIL

Confirm that the locking clamps of the extension power supply module 
are set.  Insert the module in parallel to the next one while aligning the  
grooves of both modules (A & B in the above figure).
Maintain it perpendicularly to the rail. 

More I/O modules can be added in the same manner.

A

B

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