ABB ACS480 Troubleshooting Manual page 6

Code
Warning / Aux. code
(hex)
A2B4 Short circuit
A2BA IGBT overload
A3A1 DC link overvoltage
A3A2 DC link undervoltage
A3AA DC not charged
A490 Incorrect temperature
sensor setup
A491 External temperature
1
(Editable message text)
A492 External temperature
2
(Editable message text)
A4A0 Control board
temperature
Cause
Short-circuit in motor cable(s)
or motor.
Excessive IGBT junction to
case temperature. This
warning protects the IGBT(s)
and can be activated by a short
circuit in the motor cable.
Intermediate circuit DC voltage
too high (when the drive is
stopped).
Intermediate circuit DC voltage
too low (when the drive is
stopped).
The voltage of the intermediate
DC circuit has not yet risen to
operating level.
Temperature cannot be
supervised due to incorrect
adapter setup.
Measured temperature 1 has
exceeded warning limit.
Measured temperature 2 has
exceeded warning limit.
Control unit temperature is too
high.
(none) Temperature above warning
limit
1 Thermistor broken
Fault tracing 05
What to do
Check motor and motor cable for cabling
errors.
Check motor and motor cable (including
phasing and delta/star connection).
Check for an earth fault in motor or motor
cables by measuring the insulation
resistances of motor and motor cable.
See chapter Electrical installation,
section Checking the insulation of the
assembly in the Hardware manual of the
drive.
Check there are no power factor
correction capacitors or surge absorbers
in motor cable.
Check motor cable.
Check ambient conditions.
Check air flow and fan operation.
Check heatsink fins for dust pick-up.
Check motor power against drive power.
Check the supply voltage setting
(parameter 95.01 Supply
that the wrong setting of the parameter
may cause the motor to rush
uncontrollably, or may overload the brake
chopper or resistor.
Check the supply voltage.
If the problem persists, contact your local
ABB representative.
Check the settings of temperature source
parameters 35.11 and 35.21
Check the value of parameter
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.
Check the value of parameter
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.
Check the auxiliary code. See actions for
each code below.
Check ambient conditions.
Check air flow and fan operation.
Check heatsink fins for dust pick-up.
Contact an ABB service representative
for control unit replacement.
voltage). Note
35.02
35.03