M-system R3-RS4 Instruction Manual Download Page 4

R3-RS4

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-8364  Rev.5  P. 4 / 4

 

CONNECTION DIAGRAM

A

B

B

RTD

1

2

11

3

4

13

6

7

16

8

9

18

*

For dual redundant communication.

INPUT 1

A

B

B

A

B

B

A

B

B

RTD

INPUT 2

RTD

INPUT 3

RTD

INPUT 4

BUS CONNECTOR

INTERNAL POWER

INTERNAL BUS A

INTERNAL BUS B

*

• Unused Input Channels

Close across the unused input terminals with a resistor as shown 
below and set the DIP switch for Pt 100 input.

Unused channels left open are equal to the burnout, which turns 
the red ERR LED on and sets a burnout flag at the PLC or the 
host device.
Unused channels can be specified and set so on the PC 
Configurator Software (model: R3CON) without needing to connect 
resistors at the field terminals.

1

2

INPUT 1

3

4

INPUT 2

6

7

INPUT 3

9

INPUT 4

100Ω

11

13

16

18

8

WIRING INSTRUCTIONS

 

SCREW TERMINAL

Torque: 0.5 N·m

 

SOLDERLESS TERMINAL

Refer to the drawing below for recommended ring tongue 
terminal size.  Spade tongue type is also applicable.  Solder-
less terminals with insulation sleeve do not fit.
Applicable wire size: 0.3 – 0.75 mm

2

Recommended manufacturer: Japan Solderless Terminal 
MFG. Co., Ltd., Nichifu Co., Ltd.

12max

6max

3max

4min

3.2 dia.

(mm)

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