Installing/mounting
4.5 Positioners subjected to fast acceleration or strong vibration
SIPART PS2 with and without HART
46 Operating Instructions, 10/2013, A5E00074631-11
Procedure locking the setting
Overview diagram
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
⑤ and the gear latch ①are set to the same
value, either to 33° or to 90°.
Locking transmission ratio to 33°
Locking transmission ratio to 90°
Transmission ratio selector
Figure 4-9 Locking friction clutch and transmission ratio
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