MODEL: R3-PA4

R3-PA4 SPECIFICATIONS

ES-8399 Rev.8 Page 4/5

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

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

3

1

4

2

EXC +

INP TERM. 1

INP TERM. 2

INP TERM. 3

5

COM

INTERNAL POWER

*For dual redundant communication.

Control

Circuit

Communication

Circuit

Isolation

DIP SW

RUN LED ERR LED

Sensor

Excitation

Input

Circuit

Input 1

8

6

9

7

EXC +

INP TERM. 1

INP TERM. 2

INP TERM. 3

10

COM

Isolation

Sensor

Excitation

Input

Circuit

Input 2

13

11

14

12

EXC +

INP TERM. 1

INP TERM. 2

INP TERM. 3

15

COM

Isolation

Sensor

Excitation

Input

Circuit

Input 3

18

16

19

17

EXC +

INP TERM. 1

INP TERM. 2

INP TERM. 3

20

COM

Isolation

Sensor

Excitation

Input

Circuit

Input 4

INTERNAL BUS A

INTERNAL BUS B*

Input Connection Example (Input 1)

■ Open Collector

1

2

3

5

12V DC

20kΩ

1kΩ

7.5kΩ

4

■ Voltage Pulse input

• Operational voltage across the terminals: 0 − 50V, 0 − 25V

12V DC

7.5kΩ

100kΩ

1kΩ

2

3

4

5

20kΩ

• Operational voltage across the terminals: 0 − 12V

、0 − 6V

1

+

–

+

PWR

12V DC

7.5kΩ

100kΩ

1kΩ

2

3

4

5

20kΩ

1

+

–

+

PWR