Operation; Normal Operation; Optical Position Indicator; Manual Override - GEM B56 Operating Instructions Manual

15 Operation

15 Operation

15.1 Normal operation

For opening or closing, the product must be activated in ac-
cordance with the electrical connection.

15.2 Optical position indicator

The actuator has an optical position indicator which indicates
the position of the actuator.
Actuator versions 1015, 2015, 3035
CLOSED
Actuator version 2070
closed
zu
CLOSED
Actuator versions 4100, 4200
OPEN
GEMÜ B56
OPEN
open
offen
OPEN
CLOSED

15.3 Manual override

Only actuate the manual override when the power is
switched off.
▶ Damage to the actuator!
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.
15.3.1 Manual overrides 1015, 2015, 3035
Attention!
Only
actuate when
power is switched off
Actuator version 1015 and 2015
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.
80 / 92
CAUTION
CAUTION
2 = OPEN
Manual override
1 = CLOSED
2 = CLOSED
emergency
OPEN
operation
CLOSED
1 = OPEN
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