ABB SACE Emax 2 - Page 36

ABB | SACE Emax 2
Management operations
1 - Ekip Touch maintenance and troubleshooting
34 | © 2023 ABB | 1SDH001316R1002 - ECN000297030
Continued from the previous page
Faults Possible causes Suggestions
The circuit-breaker
doesn't close when
the closing coil is
powered
The trip signal of the protection trip
unit has not been reset
Press the TU Reset button
The power supply voltage of the
auxiliary circuits is too low
Measure the voltage: it should not be
lower than 70% of the rated voltage
of the coil
The power supply voltage is different
from that indicated on the rating
plate
Check the voltage on the rating plate
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 in the power supply
circuit are wrong
Check the connections using the
relevant wiring diagram
The closing coil is damaged Replace the coil
The operating mechanism is blocked
Perform the closing operation
manually; if the fault persists contact
ABB
The open position key lock is
activated
Unlock the lock in open position
using the relevant key
The circuit-breaker is in an
intermediate position between
connected and test or the trip unit
pushbutton is pressed (withdrawable
version)
Complete the rack-in operation
The undervoltage coil is not
energized
Make sure that undervoltage coil is
energized properly
The opening coil is permanently
energized
Correct operating condition. If
necessary, disconnect the power
from the opening coil
The racking out crank handle is
inserted (withdrawable version)
Remove the crank
The circuit-breaker
doesn't open
when the opening
pushbutton is
pressed
The operating mechanism is blocked Contact ABB
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
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