7. Operation
7.1. Manual operation
For purposes of setting and commissioning, in case of motor or power failure, the
actuator may be operated manually. Manual operation is engaged by an internal
change-over mechanism.
Manual operation is automatically disengaged when motor is started again. The
handwheel does not rotate during motor operation.
7.1.1. Manual valve operation
Damage at the manual change-over mechanism/motor coupling due to faulty
operation!
→
Engage manual operation only during motor standstill.
→
Do NOT use extensions as lever for operation.
1. Press push button.
2. Turn handwheel in desired direction.
➥
The closing direction is marked on the handwheel.
Table 23: Handwheel marking (examples)
→ For valve closing, turn handwheel in direction of the arrowhead.
Counterclockwise closing
Clockwise closing
Drive shaft (valve) turns counterclockwise
in direction CLOSE.
Drive shaft (valve) turns clockwise in direction
CLOSE.
7.2. Motor operation
Valve damage due to incorrect basic setting!
→
Prior to electric actuator operation, perform the basic settings for “type of seating”
and “torque switching”.
7.2.1. Operating the actuator from local controls
Local actuator operation is performed using the local controls push buttons of actuator
controls.
45
SQEx 05.2 – SQEx 14.2/SQREx 05.2 – SQREx 14.2 Control unit: electronic (MWG)
ACExC 01.2 Non-Intrusive Profibus DP Operation
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