MODEL: MEXM

MEXM SPECIFICATIONS

ES-4610 Rev.2 Page 1/4

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

Final Control Elements

VALVE POSITIONER

(for Modbus; built-in SSR)

Functions & Features

• Used for control of valve or damper where capacitor motor

and potentiometer are employed

• Valve opening and position readable via Modbus

communication

• Control of 24 - 200 V AC system electric actuator use

• Builtin SSR directly drives an AC motor

50

(1.97)

136

(5.35)

80

(3.15)

mm (inch)

MODEL: MEXM-110-AD4[1]

ORDERING INFORMATION

• Code number: MEXM-110-AD4[1]

Specify a code from below for [1].

(e.g. MEXM-110-AD4/Q)

• Specify the specification for option code /Q

(e.g. /C01/S01)

FEEDBACK RESISTANCE

1: Potentiometer

CONTROL OUTPUT

1: SSRs incorporated

BRAKE

0: None

POWER INPUT

Universal

AD4: 100 – 240 V AC / 100 – 240 V DC (universal)

(Operational voltage range 85 - 264 V AC, 50 - 60 Hz /

85 - 264 V DC, ripple 10 %p-p max.)

[1] OPTIONS

blank: none

/Q: With options (specify the specification)

SPECIFICATIONS OF OPTION: Q (multiple selections)

COATING (For the detail, refer to M-System's web site.)

/C01: Silicone coating

/C02: Polyurethane coating

/C03: Rubber coating

TERMINAL SCREW MATERIAL

/S01: Stainless steel

PACKAGE INCLUDES...

• Terminating resistor (110 Ω, 0.25 W)

GENERAL SPECIFICATIONS

Construction: Plug-in

Connection: M3.5 screw terminals

Screw terminal: Chromated steel (standard) or stainless

steel

Housing material: Flame-resistant resin (black)

Full-closed position adjustment range: 0 - 25 % (front)

Full-open position adjustment range: 75 - 100 % (front)

Deadband adjustment: 0.1 – 8.0 % (front adj.; refer to the

table below)

Factory set to 1.5 %

Restarting timer: 2 sec.

Isolation: Modbus to feedback resistance to control output

to power

Manual operation switch: Manual full-close or full-open

position command

Deadband adjustment

Deadband adj. SW

Deadband (%)

0

0.1

1

0.3

2

0.5

3

0.7

4

1.0

5

1.5

6

2.0

7

3.0

8

5.0

9

8.0

MODBUS COMMUNICATION

Communication: Half-duplex, asynchronous, no procedure

Standard: Conforms to TIA/EIA-485-A

Baud rate: 4800, 9600, 19.2 k, 38.4 k (bps) (with rotary

switch) (factory setting: 38.4 kbps)

Protocol: Modbus-RTU

Node address setting: 1 - 99 (with rotary switch) (factory