ABB ACQ80-04 - Page 212

212 Fault tracing
5089 SMT circuit
malfunction
Safe motor temperature fault is
generated and STO
event/fault/warning is not
generated.
Check connection between the relay
output of the module and the STO
terminal.
0001 Auxiliary fan 1 broken.
0002 Auxiliary fan 2 broken.
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 109).
Check the value of parameter 95.04
Control board supply.
5092 PU logic error Power unit memory has
cleared.
Contact your local ABB representative.
5093 Rating ID mismatch The hardware of the drive does
not match the information
stored in the memory. This
may occur eg. after a firmware
update.
Cycle the power to the drive. You may
have to be repeat this.
5094 Measurement circuit
temperature
Problem with internal
temperature measurement of
the drive.
Contact your local ABB representative.
5095 Redundant
measurement
Duplicated measurements are
beyond limits.
Contact ABB.
5096 Overtemperature hw Excessive hardware
temperature.
Contact your local ABB representative.
5098 I/O communication
loss
Communication failure to
standard I/O.
Try resetting the fault or cycle the power
to the drive.
5681 PU communication Communication errors
detected between the drive
control unit and the power unit.
Check the connection between the drive
control unit and the power unit.
Check the value of parameter 95.04
Control board supply.
5682 Power unit lost Connection between the drive
control unit and the power unit
is lost.
Check the connection between the
control unit and the power unit.
5690 PU communication
internal
Internal communication error. Contact your local ABB representative.
5691 Measurement circuit
ADC
Measurement circuit fault. Contact your local ABB representative.
5692 PU board powerfail Power unit power supply
failure.
Contact your local ABB representative.
5693 Measurement circuit
DFF
Measurement circuit fault. Contact your local ABB representative.
5695 Reduced run Configured power units not
found.
Configure the power units.
Code
(hex)
Fault / Aux. code (aux
code visible only on
assistant control panel
and drive composer)
Cause What to do
ACQ80 FW.book Page 212 Thursday, February 14, 2019 11:33 AM