MODEL: PSN1G

PSN1G SPECIFICATIONS

ES-4876 Rev.0 Page 1/6

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

Final Control Elements

SERVO-TOP II ELECTRONIC ACTUATOR

linear type; rated thrust 3000N

Functions & Features

• High-resolution electronic actuator for control valves

• Fast action control without overshoot

• Equipped with high-performance stepping motor

• Usable in both low and high temperature ranges

• Excellent in hysteresis, linear, and resolution

characteristics

• Disc spring with buffer incorporated

Typical Applications

• Fuel cell systems

• Capacity control of compressor for refrigerating machines

• High-speed & high-performance control valves used in

various plants and industries

221.5 (8.72)

MODEL: PSN1G–A21–A

ORDERING INFORMATION

• Code number: PSN1G-A21-AR

• Use Ordering Information Sheet (No. ESU-4876).

Ex-factory settings will be as shown in the table below if

not specified by the user.

EX-FACTORY SETTINGS

Item

Setting

Action

Reverse

Operations at abnormally low input

Stop

Output stem ex-factory position

Upper-end

Opening/Closing speed

7.5 sec. / 20 mm

Deadband setting

0.1 %

Restart limiting timer

0.1 sec.

OUTPUT STEM OPERATION DISTANCE

A: 0-20 mm (0” to .79”)

SEALING SPRING PRESSURE

2: 3000 N use

OUTPUT STEM TYPE

1: M14 male screw, pitch 1.5

INPUT

Current

A: 4 – 20 mA DC (Input resistance 250 Ω)

POWER SUPPLY VOLTAGE

DC Power

R: 24 V DC

(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)

Common Specifications

• Output signal: 4 - 20 mA DC

(allowable load resistance: ≤ 300 Ω)

• Rated thrust: 3000 N

• Maximum thrust: 3200 N (reference value)

• Thrust when output stem is locked: 3500 N min.

(reference value)

• Operation speed: 7.5 sec./20 mm

RELATED PRODUCTS (Products sold separately)

• Manual operation handle (model: HPSN)

• Programming Unit (model: PU-2x)

GENERAL SPECIFICATIONS

Degree of protection: IP66

Action: "Reverse" action, in which the output stem retracts

or moves upward as the input signal increases.

Operation at abnormally low input:

(selectable with DIP switches)

- Extend/move downward

- Retract/move upward

- Stop

Abnormal signal level: ≤ 1.48(±0.4) mA DC

Wiring conduits: G 1/2 female thread (two)

Terminal block: 7.62 mm pitch; M3 screw terminals (torque

0.5 N·m)

Screw terminal: Nickel-plated brass

Housing material: Diecast aluminum

Coating: Silver color

Drive: Stepping motor

Insulation class: E