14.2 Check the setting of the limit switching
.
Move actuator manually into both end positions of the valve.
.
Check whether limit switching is set correctly. Hereby observe that the
appropriate switch is tripped in each end position and released again after
the direction of rotation is changed. If this is not the case, the limit
switching must first be set, as described from page 14.
14.3 Check whether type of seating is set correctly
The valve manufacturer states whether switching off in the end position
CLOSED should be by limit seating or torque seating.
.
Checking the setting: see page 23, clause 19.
If no other options (clauses 15. to 17.) require setting:
.
Close switch compartment (see page 22, clause 18.).
15. Setting of the potentiometer (option)
– For remote indication –
.
Move valve to end position CLOSED.
.
If installed, pull off indicator disc.
.
Turn potentiometer (E2) clockwise until stop is felt.
End position CLOSED corresponds to 0 %, end position OPEN to 100 %.
.
Turn potentiometer (E2) slightly back from the stop.
Due to the ratio of the reduction gearings for the position
transmitter the complete resistance range is not always
utilized for the whole travel. Therefore an external possibility
for adjustment (setting potentiometer) must be provided.
.
Perform fine-tuning of the zero point at external setting potentiometer (for
remote indication).
18
Multi-turn actuators SA 07.1 – SA 16.1
with actuator controls AMB 01.1/AMB 02.1 Operation instructions
Figure N: Control unit
E2
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