ABB SACE Emax 2 Manual page 55

53 | © 2019 ABB | 1SDH001316R1002 - ECN000086501 - Rev. A
Continued from the previous page
Fault Possible causes
Current below the minimum threshold
that can be displayed
Incorrect frequency setting
Measurements
Harmonic distortion and/or crest factor
incorrect or absent off range
(current, voltage, etc)
Incorrect connection between isolation
transformer and Measurement module
Rated Voltage parameter setting error
The PIN has been disabled or has
The PIN is not
already been entered in the same
required
programming session
PIN error PIN wrong or lost
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
One or more of the following conditions:
TRIP fail signaling:
• Trip coil not working
Trip Fail command
• status contacts not working
(BF)
• faulty internal wiring
The expected trip
Trip excluded
does not occur
Wrong threshold/time/curve selected
Thermal memory enabled
Trip times different
than expected
Zone selectivity enabled
Incorrect neutral selection
Rapid trip with I3=Off linst trip
Incorrect selection of the sensor
High ground-fault
current, but no trip
Function G inhibited owing to high
occurs
current
Opening data not No auxiliary power supply and/or battery
displayed low
Suggestions
Correct operating condition.
Set frequency
Correct operating condition.
Check connections between isolation
transformer and Measurement module
Set the correct parameters
Operating condition correct; consult
chapter relating to the PIN
Contact ABB or consult document
1SDH001501R0001
Check Trip coil connection and
messages on display
Press the reset pushbutton
Correct operating condition.
1. If closed, open CB in the manual
mode and check changed status.
2. Press iTest, check that the signal has
disappeared from the display and the
general status of the alarms.
3. Check the conditions of the wiring
and internal contacts
4. Working in safety conditions, close
the CB and perform a trip test via the
trip unit
Contact ABB if problems persist
Operating condition correct; enable trip
if necessary
Correct parameters
Disable it if it is not necessary
Disable it if it is not necessary
Modify the neutral selection
Correct operating condition with short
circuit at high current
Set internal or external sensor
Operating condition correct (see
protection description chapter)
Correct operating condition.
Management operations | 1 - Ekip Touch maintenance and troubleshooting
ABB | SACE Emax 2