PSN1 / PSN3
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
EM-4857 Rev.10 P. 3 / 9
COMPONENT IDENTIFICATION
Modular Jack
Control PCB
Stepping Motor
Temperature Sensor
Angle Sensor
Gasket
Manual Operation
Sealing Spring
Output Stem
Fuse
SW-1 – 8
Input Resistor (for current input)
Ground
Terminal
POWER
INPUT
ALARM
UP
DOWN
: Power LED (green LED turns on when applied)
: Input LED (green LED turns on when applied)
: Alarm LED (red LED turns on with alarm)
: UP Control Button
: DOWN Control Button
FUSE
RETRACT
INPUT
SIGNAL
POSITION
SIGNAL
FORCED
OPEN / CLOSE
COMMAND
SEQUENTIAL
CONTROL
EXTEND
COM1
COM1
+
+
COM2
12
11
OPEN / CLOSE SIGNAL
RETRACTED
OPEN / CLOSE SIGNAL
EXTENDED
ALARM
10
9
8
7
6
5
1
2
POWER
V(–)
U(+)
POWER
INPUT
ALARM
DOWN
(EXTEND)
UP
(RETRACT)
1 EXTEND / RETRACT
2 ACCORDING TO SW1 / STOP
3 REVERSE / DIRECT
4
5 RETRACTED POSITION SET
6 EXTENDED POSITIN SET
7
8 RUN / PU
4
3
Figure 1. Component Identification
OUTPUT STROKE & ADJUSTABLE RANGE
The servo-control PCB compares input signal (position set-
point signal) and actual position signal from the position
sensor, and drives the motor to reduce the deviation.
When a full-close signal is provided, the output stem is
pressed onto the sealing spring after the valve is fully
closed, until the sealing pressure reaches a preset value.
MODEL
L (mm)
L (inch)
PSN1-4x1
66 to 106
2.60 to 4.17
PSN1-4x2
52 to 92
2.05 to 3.62
PSN3-6x1
66 to 126
2.60 to 4.96
PSN3-6x2
52 to 112
2.05 to 4.41
Yoke Surface
L
Figure 2. Operational Range of the Output Stem
