Restrictors - Siemens SIPART PS2 Operating Instructions Manual

5.4

Restrictors

● Reduce the air output to achieve travel times of T > 1.5 s for small actuators. Use restrictors
Y1
● When turned clockwise, they reduce the air output and finally shut it off.
● In order to set the restrictors, we recommend closing them and then opening slowly.
● In case of double-acting valves, ensure that both restrictors have approximately the same
setting.
Figure 5-17
*) Restrictor Y2
See also
Pneumatic connection for 6DR5..5-0E... (Page 88)
Sequence of automatic initialization (Page 108)
SIPART PS2 with and without HART
Operating Instructions, 05/2017, A5E00074631-AC
① ②
and Y2 for this purpose.
①
Restrictor Y1
②
Restrictor Y2, only in the version for double-acting actuators *)
③
Hexagon socket-head screw 2.5 mm
Restrictors
②
is not active for single-acting Fail in Place F01
Connection
5.4 Restrictors
93