INSTRUCTION MANUALDC VOLTAGE INPUT MODULE(8 points, isolated, wide span voltage up to ±50V)

MODEL

R3-SV8C

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.

■ 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.

■ PACKAGE INCLUDES:
DC voltage 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 when
you use this product, including installation, connection andbasic maintenance procedures.

■ 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 open. Otherwise, set them as“Unused” with PC Configurator software: R3CON.
■ 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 datasheet.

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

MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANEM-8423 Rev.6P. 1 / 3

R3-SV8CCOMPONENT IDENTIFICATION■ SIDE VIEW

■ FRONT VIEW
RUN LED
15ERR LED
FunctionsSW112345678SW21234567816171819

SW3Range
Input 1-4 (SW1)orInput 5-8 (SW2)123420Conv.
Rate

212223

ON

2425

ON

26

ON

2728

■ SIDE DIP SW(*) Factory setting• Input Range: SW1, SW2 (selectable per 4 channels)
INPUT 1 through INPUT 4 (SW1)
INPUT 5 through INPUT 8 (SW2)1234OFFOFF
OFFOFFONOFFOFF
OFFOFFON
OFFOFFONONOFFOFFRANGE-50 – +50V (*)-25 – +25V
0 – 50V
0 – 25V

1234
567891011121314■ 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.

• Conversion Rate: SW3-1, 3-2
SW
SW3-1
SW3-2

160 ms (*)
OFFOFFCONVERSION RATE
80 ms
40 ms
ONOFFOFFON

20 ms
ONON

Note: Be sure to set unused SW1-5 through 1-8, SW2-5
through 2-8, 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
1.0000
0: EnableEM-8423 Rev.6

P. 2 / 3R3-SV8C

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

161718130 (5.12)

19202122232425262728123456728–M3SCREW891011121314

TERMINALCOVER■ CONNECTION DIAGRAMINPUT 3INPUT 4INPUT 5INPUT 6

INPUT 7INPUT 8– 3+ 4– 6INTERNAL BUS A■ SCREW TERMINALTorque: 0.5 N·m

INTERNAL BUS B*

INTERNAL POWER+ 7– 9+ 10■ SOLDERLESS TERMINAL
Refer to the drawing below for recommended ring tongue
terminal 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.

– 123max

4min
3.2 dia.

+ 15– 17+ 18– 206max

INPUT 2+ 1WIRING INSTRUCTIONSBUS CONNECTOR

INPUT 1POSITIONING
GUIDE

6.2(.24)

15109 (4.29)

12max(mm)+ 21– 23+ 24– 26*For dual redundant communication.
DO NOT connect external wiring to the unused terminals.

MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANEM-8423 Rev.6P. 3 / 3