MODEL: RZMS-U9

RZMS-U9 SPECIFICATIONS

ES-7605 Rev.13 Page 9/12

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

CONNECTION DIAGRAM

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

Caution: FG terminal is NOT a protective conductor terminal.

RS-232-C

T3

T4

T2

T1

T7

T6

T5

Term.

Resist.

Network

Interface

Isolated

Multi-output

Power

Circuit

+

–

Shielded Twisted-pair Cable

To Other

I/O Modules

Jumper *2

FG

U (+)

V (–)

POWER

JACK

CONFIGURATOR

INPUT 2

1A

1B

1C

INPUT 1

2A

2B

2C

Analog

Input

Circuit 1

Analog

Input

Circuit 2

INPUT 4

3A

3B

3C

INPUT 3

4A

4B

4C

Analog

Input

Circuit 3

Analog

Input

Circuit 4

INPUT 6

5A

5B

5C

INPUT 5

6A

6B

6C

Analog

Input

Circuit 5

Analog

Input

Circuit 6

INPUT 8

7A

7B

7C

INPUT 7

8A

8B

8C

Analog

Input

Circuit 7

Analog

Input

Circuit 8

INPUT 10

9A

9B

9C

INPUT 9

10A

10B

10C

Analog

Input

Circuit 9

Analog

Input

Circuit 10

INPUT 12

11A

11B

11C

INPUT 11

12A

12B

12C

Analog

Input

Circuit 11

Analog

Input

Circuit 12

TRIGGER

INPUT

ALM

ALM

ALARM

OUTPUT

TRG+

TRG–

Isolated

Alarm Output

Isolated

Trigger Input

Micro

Processor

Based

Controller

*1

C

B

A

ext. wire

+

–

+

–

C

B

A

C

B

A

C

B

A

ext. wire

–

+

–

+

–

+

C

B

A

+

–

A

B

B

3

2

1

max.

min.

■ DC INPUT

■ T/C INPUT

• Upscale / No Burnout

■ T/C INPUT

• Downscale Burnout

■ RTD INPUT

■ POTENTIOMETER INPUT

*1 Input Connection Examples

*2 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 terminal T2 – T3 with the attached jumper pin (or with a leadwire).

When the device is not at the end, remove the jumper pin.

Note 1:

Note 2:

Note 3:

Note 4:

Note 5:

Note 6:

In order to protect the RZMS-U9 module and connected devices in connecting/disconnecting Modbus cable or

the configurator cable, be sure to earth FG terminals of the RZMS-U9 and the connected device to a most stable

earth point in the environment. Grounding is also effective to eliminate problems caused by noises.

Be careful to eliminate noise as much as possible by e.g. using shielded cables.

The smaller is common mode voltage (DC and AC) between C terminals and between C and FG, the better is

measuring accuracy. Connecting between C terminals and if possible to FG will yield the best accuracy.

Resistor modules (model: REM3-250) can be connected to 1A through 12C terminals to convert current inputs into voltage.

However, it is not recommended when TC inputs are mixed because the heat developed on and around the REM3 affects

the cold junction compensation performance. We recommend that REM3 be connected on a separate terminal board.

When the internal temperature sensors are used for CJC, temperature imbalance around the terminal block affects greatly

the CJC accuracy. In order to minimize such imbalance, do not use wires of large diameter which has large heat dissipation.

Be sure to close the terminal cover. Do not expose the module directly in the line of wind from a cooling fan.

Two-wire RTD can be used by closing across B and C terminals. Be sure to compensate wire resistance by PC Configurator

Software.