Siemens SIPART PS2 Operating Instructions Manual page 246

Service and maintenance
11.5 Replace pneumatic block
Procedure
①
②
Figure 11-1
Removing
1. Switch off the supply air PZ and depressurize the actuator.
2. Open the positioner as in the description depending on the device version:
– Opening the standard and and intrinsically safe version (Page 53)
– Opening the device version with "flameproof enclosure" (Page 56)
3. Remove the ribbon cable from the basic electronics.
4. Tighten the two fixing screws of the basic electronics.
5. Remove the basic electronics.
6. Remove the fixing screws
Four screws for the single-acting pneumatic block. Five screws for the double-acting
pneumatic block.
7. Remove the pneumatic block
8. Blow the existing dirt from the surface on which the pneumatic block was placed.
Installation
1. Insert the new cord seal
2. Press the cord seal
3. Place the new pneumatic block on the base plate.
Make sure that the pneumatic block engages with the centering elements
baseplate.
4. Screw the supplied fixing screws
5. Tighten the fixing screws with a torque of 1.1 Nm.
6. Place the new basic electronics onto the four holders of the rack.
7. Tighten the two fixing screws of the basic electronics.
8. Tighten the fixing screws.
246
Cord seal
Pneumatic block
Pneumatic block
①
①
into the groove on the pneumatic block
③
Mounting screws
④
Centering elements
③
of the pneumatic block
②
and the cord seal
into the new pneumatic block
③
into the pneumatic block.
Operating Instructions, 05/2019, A5E00127926-AC
②
.
①
.
②
.
②
on all sides.
④
SIPART PS2 with PROFIBUS PA
on the