Purge Air Switching; Commissioning Linear Actuators; Preparing Linear Actuators For Commissioning - Siemens SIPART PS2 Operating Instructions Manual

Commissioning

7.6 Commissioning linear actuators

7.5

Purge air switching

When the enclosure is open, the purge air switch above the pneumatic terminal strip on the
pneumatic block can be accessed.
● In the IN position, the enclosure is flushed from inside with a small volume of clean and dry
instrument air.
● In the OUT position, the purge air is directly directed towards outside.
Figure 7-1
The factory setting is the "IN" position.
7.6 Commissioning linear actuators
7.6.1

Preparing linear actuators for commissioning

Condition
You have already installed the positioner using the suitable mounting kit.
Setting the transmission ratio selector
Note
Commissioning
The setting of the transmission ratio selector is extremely important to commission the
positioner.
118
①
Purging air selector
②
Pneumatic connections Y1, PZ and Y2
Purge air switch on the pneumatic block; view of the positioner on the pneumatic
connection side when the cover is open
Stroke [mm]
5 to 20
25 to 35
40 to 130
Position of the transmission ratio selector
33°
90°
90°
SIPART PS2 with PROFIBUS PA
Operating Instructions, 05/2019, A5E00127926-AC