Air Circuit Breaker Interruptor Abierto Disjuntor Aberto ABW - Weg

6 SolVe proBleMS guIDe
6.1 FAultS AnD DIAgnoSeS
Fault probable Cause
Circuit
breaker does
not turn on
Circuit
breaker
turns off
immediate-ly
when it is
turned on
1. Locking by key activated
(in LOCK position).
2. Circuit breaker is not in
correct position inside the
removal carriage.
3. Removal rod is inserted. Remove removal rod.
4. Coil (module) of subvoltage
is not energized.
5. There is no voltage of
24Vdc on the connection
terminals with the coil (US+;
US-).
6. Subvoltage coil
disconnected from the
module.
7. Operating mechanism
springs are not charged.
8. Closing coil does not
operate.
English
open Circuit Breaker
Corrective Actions
1st Alternative 2nd Alternative
Deactivate locking by key
(put it in the UNLOCK
position).
Put the circuit breaker in one
of the normal positions of
operation: INSERTED, TEST
or REMOVED.
Apply control voltage to the
subvoltage module.
Replace subvoltage module.
Connect cables of modue to
the terminals US+ and US-.
Manually charge the
operating mechanism
springs.
Apply voltage to the closing
coil.
Replace closing coil.
9. On button broken. -
10. On button stuck (does
not function).
-
1. Poor operation of the coil
and/or subvoltage module.
2. Springs of the operating
system out of position.
3. Bolts of the operating
system loose.
Circuit
breaker turns
off when Poor operation of the
the springs operating mechanism.
are being
charged
Replace the coil and the
subvoltage module.
-
-
-
Contact WEG
technical
assistance.
Contact WEG
technical
assistance.
Contact WEG
technical
assistance.
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