Setting The Limit Switch For 2070, 4100, 4200; Commissioning - GEM B54 Operating Instructions Manual

Motorized ball valve
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1
2
3
8. Put on cover of actuator 3.
9. Tighten cover 3.
10. Put on protective caps 1.
ð Limit switches are set.

13.2 Setting the limit switch for 2070, 4100, 4200

The motorized actuator versions 2070, 4100 and 4200 are
supplied in the open position.
The "OPEN" and "CLOSED" end positions are set using limit
switches. These are actuated using the levers and can be ad-
justed by loosening the 2 screws.
Incorrectly adjusted limit switch!
▶ Actuator continues running.
▶ Damage to the actuator.
Do not move the limit switch too far outwards.
Versions 00, 0E, 0P:
The actuator is not reversible, i.e. it must be held briefly
when switching over from "OPEN" to "CLOSED" or "CLOSED"
to "OPEN".
For the above actuator types, overall height 1 applies.
Versions A0, AE, AP, E1, E2:
The actuator is reversible, i.e. it can be switched directly
from "OPEN" to "CLOSED". To this end, a dead zone of 200
ms is integrated into the electronic system, i.e. when
switching over, the actuator does not run for this time.
Independent of the supply voltage, the OPEN/CLOSE control
is freely selectable via a mains supply of 24 V DC, 24 V AC
up to 250 V AC or operated directly via a PLC.
An electronic current limitation limits the torque.
For the above actuator types (except for code 2070), overall
height 2 applies.
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CAUTION
Risk of electric shock
▶ Risk of injury or death (if operating
▶ Adjustments are made with the actu-
▶ Electric shock can cause severe burns

14 Commissioning

Corrosive chemicals!
▶ Risk of caustic burns.
Leakage
▶ Emission of dangerous materials.
Provide precautionary measures against exceeding the
maximum permitted pressures caused by pressure
surges (water hammer).
1. Check the tightness and the function of the product (close
and reopen the product).
2. Flush the piping system of new plant and following repair
work (the product must be fully open).
ð Harmful foreign matter has been removed.
ð The product is ready for use.
3. Commission the product.
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14 Commissioning
DANGER
voltage is higher than safe extra low
voltage).
ator cover removed.
and fatal injury.
Always disconnect the product from
power supply!
Therefore, have all work performed
only by qualified electricians.
WARNING
Wear suitable protective gear.
Completely drain the plant.
CAUTION
GEMÜ B54

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