Operation; Manual Operation; Engage Manual Operation; Manual Operation: Disengage - AUMA SAEx 07.2 Operation Instructions Manual

Operation

6. Operation
6.1.

Manual operation

6.1.1.

Engage manual operation

Information
6.1.2.

Manual operation: disengage

36
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.
Damage at the motor coupling due to faulty operation!
Engage manual operation only during motor standstill.
1. Press push button.
Figure 35: Engage manual operation
2. Turn handwheel in desired direction.
To close the valve, turn handwheel clockwise:
Drive shaft (valve) turns clockwise in direction CLOSE.
To protect the valve, an overload protection is available as option for manual opera-
tion. If the torque applied at the handwheel exceeds a certain value (refer to order-
related technical data sheet), the shear pins will rupture and thus protect the valve
from damage. The handwheel can no longer transmit the torque (= handwheel is
spinning). Motor operation is still possible.
In case of shear pin rupture due to overload, we recommend replacing the safety
hub.
Figure 36: Handwheel without/with overload protection
[1] Handwheel without overload protection (standard)
[2] Handwheel with overload protection/safety hub (option)
Manual operation is automatically disengaged when motor is started again. The
handwheel does not rotate during motor operation.
SAEx 07.2 SAEx 16.2 / SAREx 07.2 SAREx 16.2