INSTRUCTION MANUALDC CURRENT INPUT MODULE(8 points, non-isolated)

MODEL

R3-SS8N

BEFORE USE ....

POINTS OF CAUTION

Thank you for choosing us. 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 our sales office or representatives.

■ CONFORMITY WITH EU DIRECTIVES• The equipment must be mounted inside the instrument
panel of a metal enclosure.
• The actual installation environments such as panel configurations, connected devices, 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 the CE conformity.

■ PACKAGE INCLUDES:
DC current input module.....................................................(1)■ MODEL NO.
Confirm Model No. marking on the product to be exactly
what you ordered.
■ INSTRUCTION MANUALThis manual describes necessary points of caution whenyou use this product, including installation, connection andbasic maintenance procedures.

■ 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 poweris supplied. The switches are used only for maintenancewithout the power.
■ ENVIRONMENT• Indoor use.
• When heavy dust or metal particles are present in theair, install the unit inside proper housing with sufficientventilation.
• 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.
■ UNUSED INPUT CHANNELS• Set the unused channels to “Unused” with PC Configurator software: R3CON. Unused channels left open 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 supplied, however, a warm up for 10 minutes is required forsatisfying complete performance described in the data
sheet.

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

MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANEM-8406 Rev.5

P. 1 / 3R3-SS8N

COMPONENT IDENTIFICATION■ FRONT VIEW

■ SIDE VIEW

RUN LED

ERR LED
11121314151617181920123SW3454321678Conv.
RateON910■ 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 circuit abnormality (AD converter response failure);
Green in normal operating conditions.

■ SIDE DIP SW• Conversion Rate: SW3-1, 3-2
SW
SW3-1
SW3-2

160 ms (*)
OFFOFF

CONVERSION RATE
80 ms
40 msONOFFOFFON

20 msONON(*) Factory setting
Note: Be sure to set unused SW3-3 and 3-4 to OFF.

PC CONFIGURATOR
With configurator software, settings shown below are available.
Refer to the software manual of R3CON for detailed operation.
■ CHANNEL INDIVIDUAL SETTING
PARAMETER
Zero Scale
Full Scale
Zero Adjust
Full Adjust
UnusedAVAILABLE RANGE-32000 to +32000-32000 to +32000-320.00 to +320.00-32000 to +32000
0: Enable
1: Disable

MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANDEFAULT SETTING
0100000.00
1.00000: EnableEM-8406 Rev.5P. 2 / 3R3-SS8N

TERMINAL CONNECTIONSConnect the unit as in the diagram below.
■ EXTERNAL DIMENSIONS unit: mm (inch)
27.5 (1.08)

12131415161718192012320–M3SCREW

45678910TERMINALCOVER■ CONNECTION DIAGRAMINPUT 3INPUT 4INPUT 5INPUT 6INPUT 7INPUT 8+ 3– 4INTERNAL BUS A■ SCREW TERMINALTorque: 0.5 N·m

INTERNAL BUS B*

INTERNAL POWER+ 5– 6+ 7■ SOLDERLESS TERMINAL
Refer to the drawing below for recommended ring tongueterminal size. Spade tongue type is also applicable. Solderless terminals with insulation sleeve do not fit.
Applicable wire size: 0.3 – 0.5 mm2
Recommended manufacturer: Japan Solderless Terminal
MFG. Co., Ltd., Nichifu Co., Ltd.

– 83max

4min
3.2 dia.

+ 11– 12+ 13– 146max

INPUT 2– 2WIRING INSTRUCTIONSBUS CONNECTOR

INPUT 1+ 1POSITIONING
GUIDE

6.2(.24)130 (5.12)11109 (4.29)

12max(mm)+ 15– 16+ 17– 18*For dual redundant communication.

MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANEM-8406 Rev.5

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