Design and Functional Principle
25
SIPAR T PS2 Manual
A5E00074631--06
A
D
A
D
1
3 V
I
W+
I
W-
W
y
0
x
0
+
_
W
x
+U
A1 A2
6
2
_
y
+
y
U
U
I
5
4
3
Zuluft
p
Z
Abluft
p
2
p
1
Abluft
8
9
p
2
p
1
p
1
_
+
p
2
p
1
A1 A2
7
II
HART
BE1
Micro-
controller
BE2
+24 V
+5 V
Exhaust air
Exhaust
air
Supply air
stroke
stroke
1 Motherboard with microcontroller and input circuit
2 Control panel with LC-display and momentary action switch
3 Piezo-valve unit, always built-in
4 Valve unit with double-acting positioner always built-in
5 Iy-module for positioner SIPART PS2
6 Alarm module for three alarm outputs and one digital input
7 SIA-module (Slot Initiator-Alarm-module)
8 Spring-loaded pneumatic actuator (single-acting)
9 Spring-loaded pneumatic actuator (double-acting)
Figure 2-10 Block diagram of the electro-pneumatic positioner, functional diagram
.
NOTE
Alarm module (6) and SIA module (7) can only be used alternatively.
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