MODEL: 71VR1

71VR1 SPECIFICATIONS

ES-7403 Rev.17 Page 6/7

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

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

Note: In order to improve EMC performance, bond the FE terminal to ground.

Caution: FE terminal is NOT a protective conductor terminal.

VOLTAGE INPUT

+

–

CURRENT INPUT

+

–

I

COM

V

I

COM

V

*1. Only with 5-point inputs

*2. Only with 2-point DC inputs

*3. When the device is located at the end of a transmission line

via twisted-pair cable (when there is no cross-wiring), close across the terminals T2 - T3 with a leadwire.

Note: Short across the terminals V and I for Current Input.

V

I

COM

V

I

COM

9

10

27

30

28

29

Digital

Computation

2

3

4

5

6

7

8

1 FE

SHLD

T4

T1

T2

T3

11

A1

B1

C1

A2

B2

C2

A3

B3

C3

13

12

14

16

15

17

19

18

• Universal Input

A

B

B

RTD

A

B

A

B

C

A

B

C

A

B

B

C

A

B

C

A

C

T/C

REM2

-

CJC SENSOR

C

21

23

22

24

26

25

■ Input Connection e.g.

Note: For mA input, the REM2 is required.

+

+

+

–

–

VOLTAGE INPUT

CURRENT INPUT

• DC Input

U(+)

V(–)

POWER

CONTACT OUTPUT Do 1

CONTACT OUTPUT Do 2

Jumper*

3

+

–

+

+

–

CONTACT INPUT Di 1

COM

CONTACT INPUT Di 2

Contact

Input

Circuit

DC INPUT Ai 1

DC INPUT Ai 2

UNIVERSAL

INPUT

Ai 3

UNIVERSAL

INPUT

Ai 4

UNIVERSAL

INPUT

Ai 5

A/D

Converter

A/D

Converter

A/D

Converter

A/D

Converter

A/D

Converter

Isolation

Isolation

Isolation

Display / Setting

Communication

Circuit

Isolation

Isolation

Memory Card Slot

Shielded

Twisted-pair Cable

To other

Modbus devices