MODEL: R3-MS8

R3-MS8 SPECIFICATIONS

ES-8402 Rev.9 Page 4/5

https://www.m-system.co.jp/

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

1

2

INTERNAL POWER

Control

Circuit

Communication

Circuit

27

9

28

10

DIP SW

RUN LED ERR LED

3

4

6

7

8

15

11

16

12

19

17

20

18

21

24

22

25

26

23

5

14

13

1

Input Circuit

Input Circuit

Input Circuit

Input Circuit

Input Circuit

Input Circuit

Input Circuit

Input Circuit

* For dual redundant communication.

INPUT 1

+

–

3

2

1

POTENTIOMETER

max.

min.

Excitation

Generator

INPUT 2

+

–

3

2

1

POTENTIOMETER

max.

min.

Excitation

Generator

INPUT 3

+

–

3

2

1

POTENTIOMETER

max.

min.

Excitation

Generator

INPUT 4

+

–

3

2

1

POTENTIOMETER

max.

min.

Excitation

Generator

INPUT 5

+

–

3

2

1

POTENTIOMETER

max.

min.

Excitation

Generator

INPUT 6

+

–

3

2

1

POTENTIOMETER

max.

min.

Excitation

Generator

INPUT 7

+

–

3

2

1

POTENTIOMETER

max.

min.

Excitation

Generator

INPUT 8

+

–

3

2

1

POTENTIOMETER

max.

min.

Excitation

Generator

• Unused Input Channels

Close across the unused input terminals as shown below.

The input will become unstable if unused channels are left open.

Unused channels can be specified and set so on the PC Configurator Software

(model: R3CON) without needing to short at the field terminals.

1

2

INPUT 1

4

5

INPUT 2

7

8

INPUT 3

10

11

3

6

9

12

INPUT 4

15

16

17

INPUT 5

18

19

20

INPUT 6

21

22

23

INPUT 7

24

25

26

INPUT 8

SHORT

SHORT

INTERNAL BUS A

INTERNAL BUS B *