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EM-7803-BB  P. 1 / 4

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:

Relay contact output 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

 

CONFORMITY WITH EU DIRECTIVES

• The equipment must be mounted inside the instrument

panel of a metal enclosure.

• Altitude up to 2000 meters.
• The equipment must be installed such that appropriate

clearance and creepage distances are maintained to con-
form to CE requirements.  Failure to observe these re-
quirements may invalidate the CE conformance.

• The actual installation environments such as panel con-

figurations, connected devices, connected wires, may af-
fect 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 the CE conform-
ity.

• Install lightning surge protectors for those wires connect-

ed to remote locations.

 

POWER INPUT RATING & OPERATIONAL RANGE

• Locate the power input rating marked on the product and

confirm its operational range as indicated below:

24V DC rating: 24V ±10%, approx. 35mA

 

GENERAL PRECAUTIONS

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

supply and output signal for safety.

• Before you remove the terminal block or mount it, make

sure to turn off the power supply and output 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.
• 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.

• Be sure to close the terminal cover for safety.

 

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.

RELAY C CONTACT OUTPUT MODULE, 4 points

(Modbus)

MODEL

R7M-DC4G

056 222 38 18

[email protected]

www.sentronic.com

SENTRONIC

AG

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