ABB SACE Emax 2 Installation, Operation And Maintenance Instructions For The Installer And The User page 98

96 | © 2017 ABB | 1SDH000999R0002 - ECN000058721 - Rev. B
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 rating plate
The circuit-breaker
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 blocked
the command of the
undervoltage coil
It is not possible to
charge the closing
The operating mechanism is blocked
springs by means of the
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 supply
charge the closing
circuit are wrong
springs by means of the
The circuit-breaker is in disconnected
gearmotor
position
The gearmotor protection internal
fuse has tripped
The gearmotor is damaged
It is not possible to press
the button in order to
The circuit-breaker is closed
insert the racking out
crank handle
The racking-in/racking-out operation is
It is not possible to insert
not performed correctly
the moving part in the
fixed part
The moving part is incompatible with
the fixed part
The opening pushbutton is not being
It is not possible to lock
pressed
the circuit-breaker in the
open position
The lock in open position is defective
The opening solenoid is not inserted
correctly
It is not possible to
perform the trip test The trip signal of the protection trip
unit has not been reset
The busbar current is greater than zero Correct operating condition.
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
18
Check the compatibility between the
moving part and the fixed part
Press the opening pushbutton and
activate the lock
Contact ABB
Check the connection of the opening
solenoid and check the messages on
the display
Press the reset pushbutton
Putting into service and maintenance | 2 - Identification of alarms or failures
ABB | SACE Emax 2
Continued on the next page