ABB SACE Emax E2.2 Installation, Operation And Maintenance Instructions For The Installer And The User page 57

Faults, causes and remedies The following is a list of possible fault situations, their possible causes and suggestions for resolving them.
55 | © 2019 ABB | 1SDH001000R0002 - ECN000109166 - Rev. D
NOTE: with Ekip Touch, also make use of the suggestions given in document 1SDH001316R1002.
Faults Possible causes
The trip signal of the protection trip
unit has not been reset
The open-position key lock or
padlock is activated
The circuit-breaker is in an
intermediate position between
The circuit-breaker
connected and isolated for test
doesn't close when the
or between isolated for test and
closing pushbutton is
disconnected
pressed
The undervoltage coil is not energized
The opening coil is permanently
energized
The trip unit pushbutton is pressed
(withdrawable version)
The trip signal of the protection trip
unit has not been reset
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 cables of the coil are not inserted
correctly in the terminals
The connections in the power supply
circuit are wrong
The closing coil is damaged
The circuit-breaker
doesn't close when the
The operating mechanism is blocked
closing coil is powered
The open position key lock is
activated
The circuit-breaker is in an
intermediate position between
connected and test or the trip unit
pushbutton is pressed (withdrawable
version)
The undervoltage coil is not energized
The opening coil is permanently
energized
The racking out crank handle is
inserted (withdrawable version)
The circuit-breaker
doesn't open when the
The operating mechanism is blocked
opening pushbutton is
pressed
Suggestions
Press the TU mechanical reset
pushbutton or operate the electrical
reset remotely.
Unlock the lock in open position using
the relevant key
Complete the rack-in operation
Check the power supply circuit and
the power supply voltage
Correct operating condition.
Rotate the crank to complete
Press the TU Reset button
Measure the voltage: it should not be
lower than 70% of the rated voltage
of the coil
Check the voltage on the rating plate
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 closing operation
manually; if the fault persists contact
ABB
Unlock the lock in open position using
the relevant key
Complete the rack-in operation
Make sure that undervoltage coil is
energized properly
Correct operating condition. If
necessary, disconnect the power from
the opening coil
Remove the crank
Contact ABB
Putting into service and maintenance | 2 - Identification of alarms or failures
ABB | SACE Emax 2
Continued on the next page