ABB ACS880 Firmware Manual page 698

698 Fault tracing
Code Event name /
(hex) Aux. code
AE0B DC not
charged
AE0C BU DC link
difference
AE0D BU voltage
difference
AE14 Excess
temperature
AE15 Excess
temperature
difference
AE16 IGBT
temperature
AE24 Voltage
category
unselected
AE58 Emergency
stop (OFF2)
AE5F Temperature
Warning
AE73 Fan
AE78 Net lost
Cause
The voltage of the intermediate DC
circuit has not yet risen to operating
level.
Note: This warning can be shown only
when the IGBT supply unit is not
modulating.
DC link voltage difference detected by
the branching unit.
Main voltage difference detected by
the branching unit.
Power unit module temperature is
excessive.
High temperature difference between
the IGBTs of different phases.
IGBT temperature is excessive.
The supply voltage range has not been
defined.
Supply unit has received an emergency
stop (mode selection off2) command.
Supply module temperature is
excessive due to eg, module overload
or fan failure.
Cooling fan is stuck or disconnected.
Net lost is detected.
What to do
Check the input voltage setting in
parameter 95.1 Supply
Check the input voltage.
If the problem persists, contact your
local ABB representative.
Check DC fuses.
Check converter module connections
to DC link.
Check AC fuses.
Check supply cable.
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 the cabling.
Check cooling of power module(s).
Check ambient conditions.
Check air flow and fan operation.
Check heatsink fins for dust pick-up.
Check motor power against IGBT
supply unit power.
Define the supply voltage range
(parameter 95.1 Supply
Check that it is safe to continue
operation.
Return emergency stop push button
to normal position.
Restart the drive.
Check module cooling air flow and fan
operation.
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 inside of cabinet and heatsink
of supply module for dust pick-up.
Clean whenever necessary.
Check the auxiliary code in the
line-side converter program to identify
the fan.
Check fan operation and connection.
Replace fan if faulty.
Resynchronize the IGBT supply unit to
the grid after net lost.
voltage.
voltage).