ABB ACS560 - Page 427

Fault tracing 427
4991 Safe motor
temperature
The CPTC-02 module
indicates overtemperature:
• motor temperature is too
high, or
• the thermistor is in
shortcircuit.
Check the cooling of the motor.
Check the motor load and drive ratings.
Check the wiring of the temperature
sensor. Repair wiring if faulty.
Measure the resistance of the sensor.
Replace the sensor if faulty.
5080 Fan Cooling fan is stuck or
disconnected.
See A581 Fan (page 414).
5081 Auxiliary fan broken An auxiliary cooling fan is
stuck or disconnected.
Check auxiliary fan(s) and connection(s).
Replace fan if faulty.
0001 Auxiliary fan 1 broken.
0002 Auxiliary fan 2 broken.
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.
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 261).
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.
Code
(hex)
Fault / Aux. code (aux
code visible only on
assistant control panel
and drive composer)
Cause What to do