Siemens Sentron WL - Page 54

6 – 14
2)
Only permissible if the power circuit may be interrupted!
Fixed-
mounted
Draw-out
breaker
Disturbance Cause Remedy
XX
Circuit-breaker cannot be closed
and circuit-breaker ready to close.
Ready-to-close indicator:
1. Closing coil not energized or
incorrectly energized
Check or apply correct voltage
X
2. Circuit-breaker in disconnected
position in guide frame
Rack circuit-breaker into test or
connected position
X
3. Auxiliary connectors have been
removed
Plug in the auxiliary connectors
X
Circuit-breaker cannot be moved
from the maintenance position into
the disconnected position
1. Racking mechanism of breaker
not in disconnected position
(note breaker position indicator)
Rack the mechanism into
disconnected position
(green position indication)
X
Circuit-breaker cannot be fitted in
the guide rails
1. Factory mounted coding of
breaker and guide frame
doesn’t match
Use breaker type according to
guide frame lable
X
When racking from the discon-
nected into the test position, the cir-
cuit-breaker does not move during
the first 6 turns (approximately)
1. Not a fault
Rack further
X
Racking handle cannot be drawn
out
1. Circuit-breaker is closed Press „Mechanical OFF“ button and
pull racking handle block out
2)
X
2. Cubicle door not completely
closed
(Locking device as accessory)
Close cubicle door
X
Racking handle cannot be pushed
in
1. Racking handle is interlocked Rack circuit-breaker into
disconnected, test or connect
position, unlatch crank and push
crank fully in
X
Cubicle door cannot be opened
(door interlock as accessory)
1. Closed circuit-breaker is
preventing opening of cubicle
door
Open the circuit-breaker
2)
X
2. Circuit-breaker in connected
position
Rack circuit-breaker into test or
disconnected position
2)