MODEL: PSN1

PSN1 SPECIFICATIONS

ES-4857 Rev.18 Page 1/8

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

Final Control Elements

SERVO-TOP II ELECTRONIC ACTUATOR

(linear type; max. thrust 3000 N)

Functions & Features

• Control valve actuator drive

• Lightweight, compact design

• High reliability without electrical contacts

• Friendly user interface

• High resolution stepping motor

• Failsafe (safety shutdown) function optional

MODEL: PSN1–4[1][2]–[3][4][5]

ORDERING INFORMATION

• Code number: PSN1-4[1][2]-[3][4][5]

Specify a code from below for each of [1] through [5].

(e.g. PSN1-421-AK3/E)

• Use Ordering Information Sheet (No. ESU-4857). Default

setting (table below) will be used if not otherwise specified.

PARAMETER

DEFAULT

Action

Reverse

Operation at abnormally low input

Stop

Output stem extended end

Longest

Output stem retracted end

Shortest

Ex-factory stem position

Shortest

Extended side limiter

0%

Retracted side limiter

100%

Full-open/-closed signal (extended)

2%

Full-open/-closed signal (retracted)

98%

Split range

Without

Split range type

LO

Split point

50%

Opening/closing speed

2.03 mm/s

Deadband

0.5%

Restart limiting timer

2 sec.

0%

2.03 mm/s

*1. Failsafe function option.

STROKE

4: 0 to 40 mm (0” to 1.57”)

[1] SEALING SPRING

1: 1500 N use

2: 3000 N use

[2] OUTPUT STEM TYPE

1: M14 male screw, pitch 1.5

2: Stem button

[3] INPUT

Current

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

Voltage

6: 1 – 5 V DC (Input resistance 1 MΩ min.)

[4] POWER INPUT

AC Power

K3: 100 – 120 V AC

(Operational voltage range 90 – 132 V, 47 – 66 Hz)

(CE not available)

L3: 200 – 240 V AC

(Operational voltage range 180 – 264 V, 47 – 66 Hz)

DC Power

R: 24 V DC

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

[5] OPTIONS

Failsafe Function (emergency use)

blank: Without

/E: With

Wiring conduits

blank: G 1/2"

/C: G 3/4"

(Not available for option /E)

RELATED PRODUCTS

• Manual operation handle (model: HPSN)

• Programming Unit (model: PU-2x)

• Backup battery (model: PSN-BAT)

GENERAL SPECIFICATIONS

Degree of protection: IP66

Action: Direct or reverse; field selectable with DIP switches

In “reverse” action, the output stem is retracted with an

input signal increase.

Operation at abnormally low input: Extend, retract or stop;

field selectable with DIP switches

Detectable input drop level: 0.37 ±0.1 V DC; converted into

voltage

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