ABB ACS880 Firmware Manual page 535

Code
Fault / Aux. code
(hex)
3E04 DC link overvoltage
3E05 DC link undervoltage
3E06 BU DC link difference
3E07 BU voltage difference
3E08 LSU charging
4E01 Cooling
4E02 IGBT temperature
4E03 Excess temperature
4E04 Excess temperature
difference
4E06 Cabinet or LCL
overtemperature
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Cause
Excessive intermediate circuit
DC voltage.
Intermediate circuit DC voltage
is not sufficient because of a
missing supply phase or blown
fuse.
Difference in DC voltages
between parallel-connected
supply modules.
Difference in main voltages
between parallel-connected
supply modules.
DC link voltage is not high
enough after charging.
Power module temperature is
excessive.
IGBT temperature is
excessive.
Power unit module
temperature is excessive.
High temperature difference
between the IGBTs of different
phases. The amount of
available temperatures
depends on the frame size.
Overtemperature detected
either in cabinet, LCL filter or
auxiliary transformer.
Fault tracing 535
What to do
Check that parameter 95.01 Supply
voltage is set according to the supply
voltage in use.
Check supply cabling, fuses and
switchgear.
Check that parameter 95.01 Supply
voltage is set according to the supply
voltage in use.
Check the DC fuses.
Check the connection to the DC bus.
If the problem persists, contact your local
ABB representative.
Check the supply network connections.
Check the AC fuses.
If the problem persists, contact your local
ABB representative.
Check parameter 95.01 Supply
Check supply voltage and fuses.
Check the connection from the relay
output to the charging contactor.
Check that the DC voltage measuring
circuit is working correctly.
Check ambient temperature. If it exceeds
40 °C (104 °F), ensure that load current
does not exceed derated load capacity.
See appropriate hardware manual.
Check power module cooling air flow and
fan operation.
Check inside of cabinet and heatsink of
power module for dust pick-up. Clean
whenever necessary.
Check ambient conditions.
Check air flow and fan operation.
Check heatsink fins for dust pick-up.
Check motor power against IGBT supply
unit power.
Check ambient conditions.
Check air flow and fan operation.
Check heatsink fins for dust pick-up.
See AE15 Excess temperature
difference (page 533).
Check the cooling of the cabinet, LCL
filter and auxiliary transformer.
voltage.