ABB ACS480 Troubleshooting Manual page 17

16 Fault tracing
Code
Fault / Aux. code
(hex)
4290 Cooling
42F1 IGBT temperature
4310 Excess temperature
4380 Excess temperature
difference
4981 External temperature
1
(Editable message text)
4982 External temperature
2
(Editable message text)
5081 Auxiliary fan broken
5090 STO hardware failure
Cause
Drive module temperature is
excessive.
Drive IGBT temperature is
excessive.
Power unit module
temperature is excessive.
High temperature difference
between the IGBTs of different
phases.
Measured temperature 1 has
exceeded fault limit.
Measured temperature 2 has
exceeded fault limit.
An auxiliary cooling fan
(connected to the fan
connectors on the control unit)
is stuck or disconnected.
0001 Auxiliary fan 1 broken.
0002 Auxiliary fan 2 broken.
STO hardware diagnostics has
detected hardware failure.
What to do
Check ambient temperature. If it exceeds
40 °C/104 °F (IP21 frames R4
it exceeds 50 °C /122 °F (IP21 frames
...
R0 R9), ensure that load current does
not exceed derated load capacity of
drive. For all P55 frames, check the
derating temperatures. 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.
Check ambient conditions.
Check air flow and fan operation.
Check heatsink fins for dust pick-up.
Check motor power against drive power.
See A4B0 Excess temperature
390).
Check the motor cabling.
Check cooling of drive module(s).
Check the value of parameter
Measured temperature 1.
Check the cooling of the motor (or other
equipment whose temperature is being
measured).
Check the value of parameter
Measured temperature 2.
Check the cooling of the motor (or other
equipment whose temperature is being
measured).
Check the auxiliary code.
Check auxiliary fan(s) and connection(s).
Replace fan if faulty.
Make sure the front cover of the drive is
in place and tightened.
If the commissioning of the drive requires
th the cover is off, activate parameter
31.36 Aux fan fault bybass
from control unit reboot to temporarily
suppress the fault.
Reboot the control unit (using parameter
96.08 Control board boot) or by cycling
power.
Contact your local ABB representative for
hardware replacement.
...
R9) or if
(page
35.02
35.03
within 2 min