Siemens SIPART PS2 Operating Instructions Manual page 49

Overview diagram
NOTICE
Wrong registration of the rotary or part-turn movement
A different setting of the transmission ratio selector and the gear latch results in a hysteresis
in position registration. The hysteresis in position registration can result in unstable control
behavior of the higher level control loop.
● Make sure the transmission ratio selector
①
Gear latch
②
Locking transmission ratio to 33°
③
Neutral position
④
Locking transmission ratio to 90°
⑤
Transmission ratio selector
Figure 4-8 Locking friction clutch and transmission ratio
SIPART PS2 with and without HART
Operating Instructions, 05/2017, A5E00074631-AC
value, either to 33° or to 90°.
4.5 Positioners subjected to fast acceleration or strong vibration
⑤
and the gear latch
⑥
Friction clutch
⑦
Friction clutch latch
⑧
Locking friction clutch
⑨
Release friction clutch
Installing/mounting
①
are set to the same
49