MODEL: MEX-P

MEX-P SPECIFICATIONS

ES-4625 Rev.1 Page 1/3

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

Final Control Elements

VALVE POSITIONER

(position-preset contact input; built-in SSR)

Functions & Features

• Used for 24 - 200 V AC electric actuator position control

• Controls the electric actuator to a pre-configured target

position based on contact input

• Position feedback via potentiometer (100 Ω - 10 kΩ

unadjusted)

• Direct motor driving with built-in SSR (with zero-cross

circuit)

• Restart control timer built-in to prevent motor overheating

due to frequent on/off switching

Typical Applications

• Position damper control using sequencers without analog

output

72

(2.83)

80

(3.15)

136

(5.35)

mm (inch)

MODEL: MEX-P-[1][2]

ORDERING INFORMATION

• Code number: MEX-P-[1][2]

Specify a code from below for each of [1] and [2].

(e.g. MEX-P-G/B/Q)

• Specify the specification for option code /Q

(e.g. /C01/S01)

[1] POWER INPUT

AC Power

B: 100 V AC

C: 110 V AC

D: 115 V AC

F: 120 V AC

G: 200 V AC

H: 220 V AC

J: 240 V AC

[2] OPTIONS (multiple selections)

Brake Function

blank: Without

/B : With

Other Options

blank: none

/Q: Option other than the above (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

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)

Preset adjustment range: 0 to 100 % corresponding to Full-

closed to Full-open (front)

Deadband: 0.6 - 10.6 % (front)

Timer adjustment: 1 – 30 sec. (front)

Isolation: Contact input to feedback potentiometer to

control output to power

Lock protection timer: If the motor doesn't enter the

deadband for approx. 2 minutes, then power supply is cut;

reset is performed by power OFF or repeating full-open and

full-close actions

RUN indicator: Red LED blinks at 0.5 Hz during normal

operating

Blinking at 2 Hz when lock protection timer is operating

INPUT SPECIFICATIONS

■ Setting Signals (Contact input)

Contact input capacity: 12 V DC @ 2 mA

Detection level: OFF: ≥ 100 kΩ (≤ 0.1 mA) / ≥ 10 V

ON ≤ 5 kΩ (≥ 1 mA) / ≤ 1 V

■ Feedback potentiometer

Minimum span: 50% of total resistance

Input range: Can be measured unadjusted from 0 - 100 Ω to

0 - 10 kΩ with potentiometer

Excitation: 1 V DC