Pneumatic Connections - Siemens 6DR55 Series Manual

2.3.3 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 10 Pneumatic connection in normal version
1 Restrictor Y2 *)
2 Restrictor Y1
3 Actuating pressure Y2 *)
4 Supply air PZ
*)
in double--acting actuators
Figure 11 Pneumatic connection in explosion proof version
SIPART PS2 PA Manual
A5E00127926--05
The pneumatic connections are on the right hand side of the positioner
(figure 10 and figure 11).
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
positioner 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 20, page 45, figure 22, page 46 and figure 23, page 47).
Design and method of operation
27