Operation; Manual Operation; Manual Valve Operation - AUMA SAEx 07.2 Operation Instructions Manual

7 Operation

7.1 Manual operation

Manual operation under
load
CAUTION

7.1.1 Manual valve operation

CAUTION
How to proceed 1. Press push button.
For purposes of setting and commissioning, in case of motor or power failure, the ac-
tuator 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 hand-
wheel does not rotate during motor operation.
For non-self-locking actuators, the handwheel activation under load is not permitted.
Automatic handwheel rotation for non-self-locking actuators!
Risk of injury at hand and fingers.
à Do NOT engage manual operation under load.
NON-self-locking are actuators with output speeds from 125 rpm (50 Hz), 150 rpm (60
Hz). Refer to speed specification on
Damage at the manual change-over mechanism/motor coupling due to
faulty operation!
à Engage manual operation only during motor standstill.
à Do NOT use extensions as lever for operation.
2. Turn handwheel in desired direction.
Figure 33: Engage manual operation
ð The closing direction is marked on the handwheel:
Table 15: Handwheel marking (examples)
→ For valve closing, turn handwheel in direction of the arrowhead.
Clockwise closing
Drive shaft (valve) turns clockwise in direction
CLOSE.
Name plate [} 8].
Counterclockwise closing
Drive shaft (valve) turns counterclockwise in direc-
tion CLOSE.
Operation
33