ABB Sace Emax 2 Installation, Operation And Maintenance Instructions For The Installer And The User page 56

54 | © 2022 ABB | 1SDH000999R0002 - ECN000232533
Continued from the previous page
Faults Possible causes
The operating mechanism is
blocked
The power supply voltage of the
auxiliary circuits is too low
The power supply voltage is
different from 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 despite The operating mechanism is
the command of the blocked
undervoltage coil
It is not possible to
charge the closing The operating mechanism is
springs by means of the blocked
manual charging lever
The cables of the gearmotor are not
inserted correctly in the terminals
It is not possible to
The connections of the power
charge the closing
supply circuit are wrong
springs by means of the
The circuit-breaker is in
gearmotor
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 pushbutton is not
It is not possible to lock
being pressed
the circuit-breaker in
The lock in open position is
the open position
defective
Trip coil is not connected properly
It is not possible to
CB trip signal has not been reset
perform the trip test
The busbar current is greater than
zero
Putting into service and maintenance | 2 - Identification of alarms or failures
ABB | SACE Emax 2
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 pushbutton in
order to allow the insertion of the
crank with the circuit-breaker open
See chapters "Circuit breaker
racking-in/racking-out operations"
on pages 17See the document
1SDH002013A1001
Check the compatibility between
the moving part and the fixed part
Press the opening pushbutton and
activate the lock
Contact ABB
Check Trip coil connection and
messages on display
Press the reset pushbutton
Correct operating condition.
Continued on the next page