Auxiliary Codes For Line-Side Converter Faults - ABB ACS880 Firmware Manual

534 Fault tracing

Auxiliary codes for line-side converter faults

The table below lists the auxiliary codes of
troubleshooting, see the firmware manual of the line converter.
Code
Fault / Aux. code
(hex)
2E00 Overcurrent
2E01 Earth leakage
Programmable fault:
31.120 LSU earth fault
2E02 Short circuit
2E04 IGBT overload
2E05 BU current difference
2E06 BU earth leakage
3E00 Input phase loss
Programmable fault:
31.121 LSU supply phase
loss
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7583 Line side unit
Cause
Output current has exceeded
internal fault limit.
IGBT supply unit has detected
an earth fault.
IGBT supply unit has detected
short circuit.
Excessive IGBT junction to
case temperature.
Current difference detected by
the branching unit (BU).
Earth leakage detected by the
branching unit: sum of all
currents exceeds the level.
Input phase loss detected by
the IGBT bridge.
faulted. For advanced
What to do
Check supply voltage.
Check that there are no power factor
correction capacitors or surge absorbers
in supply cable.
Check motor load and acceleration
times.
Check power semiconductors (IGBTs)
and current transducers.
Check AC fuses.
Check for earth leakages.
Check supply cabling.
Check power modules.
Check there are no power factor
correction capacitors or surge absorbers
in supply cable.
If no earth fault can be detected, contact
your local ABB representative.
Check supply cable.
Check there are no power factor
correction capacitors or surge absorbers
in supply cable.
After correcting the cause of the fault,
reboot the control unit (using parameter
96.08 Control board boot) or by cycling
power.
Check the load.
Check converter fuses.
Check converter(s).
Check inverter(s).
Check LCL filter.
Power off all boards.
If the fault persists, contact your local
ABB representative.
Check AC fuses.
Check for earth leakages.
Check supply cabling.
Check power modules.
Check there are no power factor
correction capacitors or surge absorbers
in supply cable.
If no earth fault can be detected, contact
your local ABB representative.
Check the AC fuses.
Check for input power supply imbalance.