Pneumatic Connections - Siemens PROFIBUS PA SIPART PS2 Manual

Design and Functional Principle

2.2.3 Pneumatic Connections

1 Actuating pressure Y1 in single- and double-acting actuators
2 Feedback shaft
3 Supply air P
z
4 Actuating pressure Y2 in double-acting actuators
5 Exhaust air output E with silencer on the bottom of the instrument
Figure 2-3 Pneumatic connection in normal version
1 Restrictor Y2 *)
2 Restrictor Y1
3 Actuating pressure Y2 *)
4 Supply air PZ
*)
in double-acting actuators
Figure 2-4 Pneumatic connection in explosion-proof version
26
The pneumatic connections are on the right hand side of the positioner
(figure 2-3 and figure 2-4).
1
2
3
4
5
1
2
3
4
5
6
7
5 Actuating pressure Y1
6 Exhaust air output E
7 Housing ventilation (2x)
In addition, there are pneumatic connections on the back of the posi-
tioner for integrated installation in single-acting linear actuators.
Actuating pressure Y1
S
Exhaust air output E (not in explosion-proof version)
S
In the ex-factory state, these connections are sealed by screws (see
figure 3-1, page 39, figure 3-3, page 40 and figure 3-4, page 41).
SIPART PS2 PA Manual
A5E00127926-03