12
1 = Retracting spindle nut (OPEN)
2 = Extending spindle nut (CLOSE)
Figure 8: Adjusting switching cams
9.2.2 Stroke-Dependent Limit Switch Cut-Off
The spring discs are not compressed for the stroke dependent limit switch cut-off.
- Using the handwheel of the actuator, drive the valve until the required end position is reached.
- Unlock the fixing screw ① on the corresponding switching cam (Figure 8), use the gear screw ② to move
the cam towards the limit switch until it activates, and re-tighten the locking screw.
- Check the settings by driving into the end position again and measure the valve stroke.
- Re-adjust the cam if required.
9.3 PSL320-325
9.3.1 Force/Stroke-Dependent Limit Switch Cut-Off
locking screw
gear screw
①
②
A
C
B
Figure 9: Standard disc spring coupling
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