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11.1.3 Unscrewing the Mechanical Stop
Only at valves without mechanical stop in closed position:
11.1.4 Additional information
Note
If the actuator is stalled during the automatic commissioning run BEFORE reaching a desired position-dependent cut-
off, it will then store the so-obtained stroke.
Note
If, as a result of automatic commissioning, no force/torque limit is found, or if a stroke below the minimum allowed
stroke (10° in standard version) is found, the commissioning run will be aborted. The actuator returns to the “not
commissioned” condition (i.e. green LED flashing slowly), even if the actuator had been initialized correctly before
that.
Figure 25: Unscrewing the
mechanical stop
Figure 24: Automatic commissioning procedure
The automatic commissioning run start now. The
actuator will drive through the full adjusted range.
The green LED flashes quickly during this
commissioning run.
After finishing it the actuator is ready for operation.
The green LED glows permanently as long as there is
no malfunction. See status indication summary in
chapter 12.
Watch the valve’s moving element during this run to
ensure that both end positions are reached
properly. If not, adjust the stop screws (unscrew if
end position is not reached, screw in if position is
overridden) and start commissioning run again.
In normal operation, the actuators PSQ-AMS should not stop
repeatedly by hitting a mechanical stop inside the actuator.
In case a mechanical stop inside the actuator has been adjusted for
“Cut-off by Position automatically”, after finishing the commissioning
this stop screw has to be unscrewed by one full turn mandatorily.
Allen key
Summary of Contents for PS-AMS PSQ Series
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