Faults, Causes And Remedies - ABB SACE Emax E1.2 Operating Instructions For The Design Engineer

Faults, causes and remedies The following is a list of possible fault situations, their possible causes and suggestions for resolving them.
295 | © 2017 ABB | 1SDH001330R0002 - ECN000058721 Rev. A
NOTE: Before consulting the table, check the error messages on the display. If the suggestions
indicated fail to resolve the problem, contact the ABB Assistance Service supplying, if possible
supplying the report produced by the Ekip Connect software.
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
The circuit-breaker
position between connected and
doesn't close when the
isolated for test or between isolated for
closing pushbutton is
test and 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
Communication problems Circuit-breaker in withdrawn position,
with Ekip Com, Ekip Link Vaux absent or modules not inserted
or Ekip Signalling properly
State of CB Position field
Absence of Ekip Com or Ekip Link
not aligned with circuit-
modules, or contact S75I
breaker position
ABB | SACE Emax 2
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
Insert modules, set circuit-breaker to
Connected position, connect Vaux
Check for presence of Ekip Com
or Ekip Link modules and connect
contact S75/I
Continued on the next page
Identification of alarms or failures | 9 - Accessories