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What to do
Cause
Event name /
Aux. code
Code
(hex)
Check ambient temperature. If it
exceeds 40 °C (104 °F), ensure that
Drive module temperature is
excessive.
Cooling
4290
load current does not exceed derated
load capacity of drive. See appropriate
Hardware manual.
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.
Drive IGBT temperature is excessive.
IGBT
temperature
42F1
Check air flow and fan operation.
Check heatsink fins for dust pick-up.
Check motor power against drive
power.
See
.
Power unit module temperature is
excessive.
Excess
temperature
4310
See
.
High temperature difference between
the IGBTs of different phases.
Excess temp
difference
4380
Check the value of parameter
.
Measured temperature 1 has exceeded
fault limit.
External
temperature 1
4981
Check the cooling of the motor (or
other equipment whose temperature
is being measured).
Check the value of parameter
.
Check the value of parameter
.
Measured temperature 2 has exceeded
fault limit.
External
temperature 2
4982
Check the cooling of the motor (or
other equipment whose temperature
is being measured).
Check the value of parameter
.
Power down the control unit and make
sure that the module is properly
inserted in the correct slot.
A thermistor protection module has
been activated by parameter
but
cannot be detected.
FPTC not
found
4990
The last digit of the auxiliary code
identifies the slot.
Check the cooling of the motor.
The thermistor protection module
installed in slot 1 indicates
overtemperature.
Safe motor
temperature 1
4991
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 sensor if faulty.
Check the cooling of the motor.
The thermistor protection module
installed in slot 2 indicates
overtemperature.
Safe motor
temperature 2
4992
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 sensor if faulty.
658 Fault tracing
Summary of Contents for ACS880 Series
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