9.7.2. Limit switching: check
1. Set selector switch to position Local control (LOCAL).
2. Operate actuator using push buttons OPEN, STOP, CLOSE.
➥
The limit switching is set correctly if (default indication):
- the yellow indication light/LED1 is illuminated in end position CLOSED
- the green indication light/LED5 is illuminated in end position OPEN
- the indication lights go out after travelling into opposite direction.
➥
The limit switching is set incorrectly if:
- the actuator comes to a standstill before reaching the end position
- one of the red indication lights/LEDs is illuminated (torque fault)
-
the status indication S0007 in the display signals a fault.
3. If the end position setting is incorrect: Reset limit switching.
9.7.3. Reference operation position feedback: perform
For actuators with position feedback (RWG, potentiometer), a reference operation
has to be performed once the limit switching setting was changed to ensure that the
position feedback (0/4 – 20 mA) supplies correct values:
→
Operate actuator electrically (via the push buttons OPEN and CLOSE of the
local controls) once to end position OPEN and once to end position CLOSED.
9.8. Mechanical position indicator: set
✔
If options (e.g. potentiometer, position transmitter) are available: Only set mech-
anical position indication once all optional equipment have been successfully set.
1. Fit indicator disc onto shaft.
2. Move valve to end position CLOSED.
3.
Turn lower indicator disc until symbol (CLOSED) is in alignment with the
mark on the cover.
4. Move actuator to end position OPEN.
5.
Hold lower indicator disc in position and turn upper disc with symbol (OPEN)
until it is in alignment with the mark on the cover.
6. Move valve to end position CLOSED again.
7. Check settings:
If the symbol (CLOSED) is no longer in alignment with mark on the cover:
→
Repeat setting procedure.
64
SQEx 05.2 – SQEx 14.2 / SQREx 05.2 – SQREx 14.2 Control unit - electromechanical
Commissioning (basic settings) ACExC 01.2 Intrusive
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