358 Fault tracing
4290 Cooling Drive module temperature is
excessive.
Check ambient temperature. If it exceeds
50 °C /122 °F, ensure that load current
does not exceed derated load capacity of
drive. See chapter Technical data,
section Derating in the hardware manual
of the drive.
Check drive module cooling air flow and
fan operation.
Check inside of cabinet and heatsink of
drive module for dust pick-up. Clean
whenever necessary.
42F1 IGBT temperature Drive IGBT temperature is
excessive.
Check ambient conditions.
Check air flow and fan operation.
Check heatsink fins for dust pick-up.
Check motor power against drive power.
4310 Excess temperature Power unit module
temperature is excessive.
Check ambient conditions.
Check air flow and fan operation.
Check heatsink fins for dust pick-up.
Check motor power against drive power.
4380 Excess temperature
difference
High temperature difference
between the IGBTs of different
phases.
Check the motor cabling.
Check cooling of drive module(s).
4981 External temperature
1
(Editable message text)
Measured temperature 1 has
exceeded fault limit.
Check the value of parameter 35.02
Measured temperature 1.
Check the cooling of the motor (or other
equipment whose temperature is being
measured).
Check the value of parameter 35.12
Temperature 1 fault limit.
4982 External temperature
2
(Editable message text)
Measured temperature 2 has
exceeded fault limit.
Check the value of parameter 35.03
Measured temperature 2.
Check the cooling of the motor (or other
equipment whose temperature is being
measured).
Check the value of parameter 35.22
Temperature 2 fault limit.
5081 Auxiliary fan broken An auxiliary cooling fan
(connected to the fan
connectors on the control unit)
is stuck or disconnected.
Check auxiliary fan(s) and connection(s).
Replace fan if faulty.
Make sure the front cover of the drive
module is in place and tightened.
Reboot the control unit (using parameter
96.08 Control board boot) or by cycling
power.
5090 STO hardware failure STO hardware diagnostics has
detected hardware failure.
Contact your local ABB representative for
hardware replacement.
5091 Safe torque off
Programmable fault: 31.22
STO indication run/stop
Safe torque off function is
active, ie. safety circuit
signal(s) connected to
connector STO is broken
during start or run.
Check safety circuit connections. For
more information, see chapter The Safe
torque off function in the hardware
manual of the drive and description of
parameter 31.22 STO indication run/stop
(page 203).
Check the value of parameter 95.04
Control board supply.
Code
(hex)
Fault / Aux. code Cause What to do
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