
336 Fault tracing
A4B0
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.
A4B1
Excess temperature
difference
High temperature difference
between the IGBTs of different
phases.
Check the motor cabling.
Check cooling of drive module(s).
A4F6
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.
A580
PU communication
Communication errors
detected between the drive
control unit and the power unit.
Check the connections between the drive
control unit and the power unit.
A591
Drive HW initialization
Initialization of the drive
hardware.
Check the auxiliary code. See actions for
each code below.
0000
Drive hardware setup is
initializing.
Wait for the setup to initialize.
0001
Initializing HW settings for the
first time.
Wait for the setup to initialize.
A5A0
Safe torque off
Programmable warning:
Safe torque off function is
active, ie safety circuit signal(s)
connected to connector STO is
lost.
Check safety circuit connections. For
more information, chapter
The Safe
torque off function
in the hardware
manual of the drive and description of
parameter
(page
).
A5EA Measurement circuit
temperature
Problem with internal
temperature measurement of
the drive.
Contact your local ABB representative.
A5EB PU board powerfail
Power unit power supply
failure.
Contact your local ABB representative.
A5EC PU communication
internal
Communication errors
detected between the drive
control unit and the power unit.
Check the connections between the drive
control unit and the power unit.
A5ED Measurement circuit
ADC
Measurement circuit fault.
Contact your local ABB representative.
A5EE Measurement circuit
DFF
Measurement circuit fault.
Contact your local ABB representative.
A5EF
PU state feedback
State feedback from output
phases does not match control
signals.
Contact your local ABB representative.
A5F0
Charging feedback
Charging feedback signal
missing.
Check the feedback signal coming from
the charging system.
A686
Checksum mismatch
Programmable warning:
The calculated parameter
checksum does not match any
enabled reference checksum.
Check that all necessary approved
(reference) checksums (
…
)
Check the parameter configuration.
Using
,
enable a checksum parameter and copy
the actual checksum into that parameter.
Code
(hex)
Warning / Aux. code
Cause
What to do
ACS180 FW.book Page 336 Tuesday, March 9, 2021 2:25 PM