Page 55 - Sace Emax 2 Manual Touch Protection breakers

Continued from the previous page ABB | SACE Emax 2
Fault Possible causes Suggestions
Current below the minimum threshold
that can be displayed Correct operating condition.
Incorrect frequency setting Set frequency
Measurements Harmonic distortion and/or crest factor Correct operating condition.
incorrect or absent off range
(current, voltage, etc) Incorrect connection between isolation Check connections between isolation
transformer and Measurement module transformer and Measurement module
Rated Voltage parameter setting error Set the correct parameters

The PIN has been disabled or has
The PIN is not already been entered in the same Operating condition correct; consult
required chapter relating to the PIN
programming session
Contact ABB or consult document
PIN error PIN wrong or lost
1SDH001501R0001
Check Trip coil connection and
Trip coil is not connected properly
messages on display
It is not possible to CB trip signal has not been reset Press the reset pushbutton
perform the trip test
The busbar current is greater than zero 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
One or more of the following conditions: general status of the alarms.
TRIP fail signaling: • Trip coil not working 3. Check the conditions of the wiring
Trip Fail command • status contacts not working and internal contacts
(BF)
• faulty internal wiring 4. Working in safety conditions, close
the CB and perform a trip test via the
trip unit

Contact ABB if problems persist
The expected trip Trip excluded Operating condition correct; enable trip
does not occur if necessary
Wrong threshold/time/curve selected Correct parameters
Trip times different Thermal memory enabled Disable it if it is not necessary
than expected Zone selectivity enabled Disable it if it is not necessary
Incorrect neutral selection Modify the neutral selection
Correct operating condition with short
Rapid trip with I3=Off linst trip
circuit at high current
High ground-fault Incorrect selection of the sensor Set internal or external sensor
current, but no trip Function G inhibited owing to high Operating condition correct (see
occurs current protection description chapter)

Opening data not No auxiliary power supply and/or battery
displayed low Correct operating condition.

53 | © 2019 ABB | 1SDH001316R1002 - ECN000086501 - Rev. A Management operations | 1 - Ekip Touch maintenance and troubleshooting