Information
The valve position (position at output drive) is transmitted to the potentiometer via
a reduction gearing. The highest resolution and thus best positioning accuracy is
achieved if the selected stroke between end positions OPEN and CLOSED is as
close as possible to the maximum actuator stroke (max. turn range).
The actuators are available with different maximum turn ranges (= max. number of
turns). The maximum actuator turn range is defined by the respective reduction
gearing. Exchanging the reduction gearing and consequently changing the max. turn
range can only be performed by the AUMA service.
The potentiometer is set in the factory. Turning the potentiometer by means of the
setting screw [1] results in modification of the end position detection!
→
Only set potentiometer if the end position detection cannot be set: Fault signal
"Actuator is outside the permissible position" or the indication light blinks in red 6
times.
If the stroke to be set is larger than the maximum actuator stroke, replace the
reduction gearing selecting a unit with a higher maximum stroke value (max. turn
range).
1.
Remove retaining washer [4] and take off indicator disc [3].
2.
Move valve to end position CLOSED.
3.
Turn potentiometer [1] counterclockwise until stop is felt.
➥
End position CLOSED corresponds to 0 %
➥
End position OPEN corresponds to 100 %
4.
Turn potentiometer [1] slightly in opposite direction (for actuators with local
controls: until the red indication light goes out).
37
SVC 05.1 – SVC 07.5/ SVCR 05.1 – SVCR 07.5
Commissioning (basic settings at actuator)
