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14 Operation
14.1 Optical position indicator
The actuator has an optical position indicator which indicates
the position of the actuator.
Actuator versions 1015, 3035
CLOSED
Actuator version 2070
closed
zu
CLOSED
Actuator versions 4100, 4200
OPEN
14.2 Manual override
Only actuate the manual override when the power is
switched off.
▶ Damage to the actuator!
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OPEN
open
offen
OPEN
CLOSED
CAUTION
Set the actuator position to "centred" after using the manual
override!
▶ Trip cams may be outside the limit switches as the limit
switch position was manually exceeded by the manual
override.
▶ Damage to the actuator.
Set the actuator position to "centred" before electrical op-
●
eration.
Attention!
Only
actuate when
power is switched off
Actuator version 1015
Actuator version 3035
1.
Disconnect the plant from power supply and secure
against recommissioning.
2.
Remove red protective cap.
3.
To open the valve, turn the Allen key (SW3) clockwise 1
until the position indicator shows "open".
4.
To close the valve turn the Allen key (SW3) anti-clock-
wise 2 until the position indicator shows "closed".
5.
Reinsert red protective cap.
On the side of the actuator there is a blanking cover for the
manual override. The crank handle for manual override is loc-
ated on the base of the actuator. Actuation of the manual
override additionally actuates a switch that shuts off power to
the actuator.
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CAUTION
2 = OPEN
Manual override
1 = CLOSED
2 = CLOSED
emergency
OPEN
operation
CLOSED
1 = OPEN
14 Operation
GEMÜ 798
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