ABB SACE Emax 2 Series Installation, Operation And Maintenance Instructions page 252

248 | © 2013 ABB | 1SDH001000R0002 - L7804
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Faults Possible causes
The operating mechanism is
locked
The power supply voltage of the
auxiliary circuits is too low
The power supply voltage is
different to that indicated on the
The circuit-breaker
rating plate
doesn't open when
the opening coil is
powered
The cables of the coil are
not inserted correctly in the
terminals
The connections of the power
supply circuit are wrong
The opening coil is damaged
The circuit-breaker
doesn't open when The operating mechanism is
the under-voltage coil locked
trips
It is not possible
to load the closing
The operating mechanism is
springs by means of
locked
the manual loading
lever
The cables of the gearmotor
are not inserted correctly in the
terminals
It is not possible
The connections of the power
to load the closing
supply circuit are wrong
springs by means of
the gearmotor The circuit-breaker is in
disconnected position
The gearmotor protection
internal fuse has tripped
The gearmotor is damaged
It is not possible to
press the button in
order to insert the The circuit-breaker is closed
racking out crank
handle
The racking-in/racking-out
operation is not performed
It is not possible to
correctly
insert the moving
part in the fixed part
The moving part is incompatible
with the fixed part
The opening push-button is not
It is not possible
being pressed
to lock the circuit-
breaker in the open
The lock in open position is
position
defective
The opening solenoid is not
inserted correctly
It is not possible to
The trip signal of the protection
perform the Trip Test
release has not been reset
The busbar current is greater
than 0
Suggestions
Contact ABB
Measure the voltage: it should
not be lower than 85% of the
rated voltage of the coil
Use the correct voltage
Make sure there is continuity
between cable and terminal
and if necessary reconnect
the cables of the coil to the
terminals
Check the connections using the
relevant wiring diagram
Replace the coil
Perform the opening operation
manually; if the fault persists
contact ABB
Contact ABB
Make sure there is continuity
between cable and terminal
and if necessary reconnect the
cables of the gearmotor to the
terminals
Check the connections using
the relevant wiring diagram
Switch the circuit-breaker to the
test or connected position
Replace the fuse
Replace the gearmotor
Press the opening push-button
in order to allow the insertion
of the crank with the circuit-
breaker open
See the chapter "Description
- circuit-breaker insertion and
extraction operations" on page
18
Check the compatibility
between the moving part and
the fixed part
Press the opening push-button
and activate the lock
Contact ABB
Check the connection of the
opening solenoid and check the
messages on the display
Press the reset push-button
Correct condition of operation.
Putting into service and maintenance | 2 - Identification of alarms or failures
ABB | SACE Emax 2
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