Limit Switching: Check - AUMA SAEx 07.2 Operation Instructions Manual

SAEx 07.2 SAEx 16.2 / SAREx 07.2
9.4.2.

Limit switching: check

SAREx 16.2
3. With mechanical position indication:
Observe direction of rotation.
The direction of rotation is correct if the actuator moves in direction
CLOSE and:
- For position indication with symbols OPEN/CLOSED = indicator disc turns
counterclockwise.
Figure 40: Position indication with symbols OPEN/CLOSED
4. Without mechanical position indication:
4.1 Unscrew threaded plug [1] and seal [2] or protective cap for stem protection
tube [4] and observe direction of rotation at hollow shaft [3] or stem [5].
The direction of rotation is correct if the actuator moves in direction
CLOSE in clockwise direction, or the stem moves downward.
Figure 41: Hollow shaft/stem movement for clockwise closing
[1] Threaded plug
[2] Seal
[3] Hollow shaft
[4] Protective cap for stem protection tube
[5] Stem
[6] Stem protection tube
4.2 Correctly fit/screw on threaded plug [1] and seal [2] or protective cap for
stem protection tube [4], fasten thread.
1. Manually operate actuator into both valve end positions.
The limit switching is set correctly if:
- LSC switch trips in end position CLOSED
- LSO switch trips in end position OPEN
- the switches release the contacts after turning back the handwheel
2. If the end position setting is incorrect: Reset limit switching.
Commissioning (basic settings)
43