ABB | SACE Emax 2
Putting into service and maintenance
2 - Identification of alarms or failures
50 | © 2023 ABB | 1SDH001000R0002 - ECN000297030
Continued from the previous page
Faults
Possible causes
Suggestions
The circuit-breaker
doesn't open when the
opening coil is powered
The operating mechanism is
blocked
Contact ABB
The power supply voltage of the
auxiliary circuits is too low
Measure the voltage: it should not
be lower than 85 % of the rated
voltage of the coil
The power supply voltage is
different from that indicated on the
rating plate
Use the correct voltage
The cables of the coil are not
inserted correctly in the terminals
Make sure there is continuity
between cable and terminal and if
necessary reconnect the cables of
the coil to the terminals
The connections of the power
supply circuit are wrong
Check the connections using the
relevant wiring diagram
The opening coil is damaged
Replace the coil
The circuit-breaker
doesn't open despite
the command of the
undervoltage coil
The operating mechanism is
blocked
Perform the opening operation
manually; if the fault persists
contact ABB
It is not possible to
charge the closing
springs by means of the
manual charging lever
The operating mechanism is
blocked
Contact ABB
It is not possible to
charge the closing
springs by means of the
gearmotor
The cables of the gearmotor are not
inserted correctly in the terminals
Make sure there is continuity
between cable and terminal and if
necessary reconnect the cables of
the gearmotor to the terminals
The connections of the power
supply circuit are wrong
Check the connections using the
relevant wiring diagram
The circuit-breaker is in
disconnected position
Switch the circuit-breaker to the
test or connected position
The gearmotor protection internal
fuse has tripped
Replace the fuse
The gearmotor is damaged
Replace the gearmotor
It is not possible to
press the button in
order to insert the
racking out crank
handle
The circuit-breaker is closed
Press the opening pushbutton in
order to allow the insertion of the
crank with the circuit-breaker open
It is not possible to
insert the moving part
in the fixed part
The racking-in/racking-out
operation is not performed
correctly
See chapters "Circuit breaker
racking-in/racking-out operations"
on pages18 See the document
1SDH002013A1001
The moving part is incompatible
with the fixed part
Check the compatibility between
the moving part and the fixed part
It is not possible to lock
the circuit-breaker in
the open position
The opening pushbutton is not
being pressed
Press the opening pushbutton and
activate the lock
The lock in open position is
defective
Contact ABB
It is not possible to
perform the trip test
Trip coil is not connected properly
Check Trip coil connection and
messages on display
CB trip signal has not been reset
Press the reset pushbutton
The busbar current is greater than
zero
Correct operating condition.
Continued on the next page