ABB ACS880-01-061A-3+N5350 - Page 176

Troubleshooting 13-33AXD50000011888
Table 13-1 Warning Messages (Alphabetical by Keypad Text)
Warning Fault # Cause What to do
Incorrect
temperature
sensor setup
A490 Sensor type mismatch Check the settings of temperature source parameters
35.11 and 35.21 against 91.21 and 91.24.
Faulty wiring between an
encoder interface module
and the temperature
sensor.
Check the wiring of the sensor.
The auxiliary code (see the event log) identies the
interface module. (0 = Module 1, 1 = Module 2).
External
temperature
1
(Editable message text)
A491 Measured temperature
1 has exceeded warning
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 35.13 Temperature 1 warning limit.
External
temperature
2
(Editable message text)
A492 Measured temperature
2 has exceeded warning
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 35.23 Temperature 2 warning limit.
IGBT
overtemperature
A4A1 Estimated drive IGBT
temperature is excessive.
Check ambient conditions.
Check air ow and fan operation.
Check heatsink ns for dust pick-up.
Check motor power against drive power.
Cooling A4A9 Drive module temperature
is excessive.
Check ambient temperature. If it exceeds 40°C (104°F),
ensure that load current does not exceed derated load
capacity of drive. See appropriate Hardware Manual.
Check drive module cooling air ow and fan operation.
Check inside of cabinet and heatsink of drive module for
dust pick-up. Clean whenever necessary.
Excess temperature A4B0 Power unit module
temperature is excessive.
Check ambient conditions.
Check air ow and fan operation.
Check heatsink ns for dust pick-up.
Check motor power against drive power.
Excess temperature
difference
A4B1 High temperature
difference
between the IGBTs of
different phases.
Check the motor cabling.
Check cooling of drive module(s).
IGBT temperature A4F6 Drive IGBT temperature is
excessive.
Check ambient conditions.
Check air ow and fan operation.
Check heatsink ns for dust pick-up.
Check motor power against drive power.
PU communication A580 Communication errors
detected between the
drive control unit and the
power unit.
Check the connections between the drive control unit and
the power unit.
Safe torque off
Programmable warning:
31.22 STO indication
run/stop
A5A0 Safe torque off function is
active, i.e. safety circuit
signal(s) connected to
connector XSTO is lost.
Check safety circuit connections. For more information,
see appropriate drive hardware manual and description of
parameter 31.22 STO indication run/stop.
Measurement circuit
temperature
A5EA Problem with internal
temperature measurement
of the drive.
Contact your local ABB representative.
PU board powerfail A5EB Power unit power supply
failure.
Contact your local ABB representative.
PU communication
internal
A5EC Communication errors
detected between the
drive control unit and the
power unit.
Check the connections between the drive control unit and
the power unit.
Measurement circuit
ADC
A5ED Measurement circuit fault. Contact your local ABB representative.