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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-7803-U Rev.4  P. 1 / 7

INSTRUCTION MANUAL

RELAY CONTACT OUTPUT MODULE, 8 points

(Modbus)

MODEL

R7M-DC8C

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:

Discrete output module.......................................................(1)
Terminating resistor (110Ω, 0.25W) ...................................(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

• This equipment is suitable for Pollution Degree 2 and 

Measurement Category II (output, transition voltage 
1500V) with the maximum operating voltage 125V.

*1

  Ba-

sic insulation (output to power: 150V)

*2

 is maintained.  

Prior to installation, check that the insulation class of 
this unit satisfies the system requirements.

    *1.  For use in Measurement Category I (output, transition 

voltage 1500V) with the maximum operating voltage 
250V.

    *2. 

For use in Measurement Category I, 300V.

• 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 and connected wires may 
affect the protection level of this unit when it is integrat-
ed 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:

    24V DC rating: 24V ±10%, approx. 60mA

 

GENERAL PRECAUTIONS

• Before you remove the unit or mount it, 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 
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.

Содержание R7M-DC8C

Страница 1: ...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 insta...

Страница 2: ...s place digit of the address 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 Node Address Setting x1 Factory setting 00 Node Address Setting x10 BAUD RATE Baud Rate is selected with the rotary switch 5 4 3 2...

Страница 3: ...6 9 15 Y4 Y7 COM1 COM1 8 Points common 10 14 1 2 5 11 24V 24V DC Y0 0V Y3 15 Y4 18 Y7 COM0 COM0 6 9 COM1 COM1 24V DC 5 2 6 4 7 13 8 9 14 12 15 11 16 17 18 COM0 COM0 COM0 Y0 Y1 Y2 Y3 COM0 COM1 COM1 COM...

Страница 4: ...d cautions when installing R7M are stated below Use control panels with an internal panel plate both made of metal when installing the R7M Make sure to adequately ground the control panel and the inte...

Страница 5: ...using an electro magnetically shielded control panel By connecting the internal panel plate and the panel cover with an earth strap grounding may be strengthened and EMC may be improved Ground the con...

Страница 6: ...dditional measures may be taken depending upon actual installation sites These points of cautions are illustrated in the next page Keep cables as short as possible It prevents noise emissions from the...

Страница 7: ...m is not effective Points of cautions applicable when wiring the R7M Series To external apparatus Keep the cable as short as possible To external apparatus Shielded Cable Earth Clamp Remove a part of...

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