Fault tracing 501
Warning messages
Note: The list also contains events that only appear in the Event log.
Code
(hex)
Warning Cause What to do
A2A1 Current calibration Current offset and gain
measurement calibration will
occur at next start.
Informative warning. (See parameter
99.13 ID run requested.)
A2B3 Earth leakage
Programmable fault: 31.20
Earth fault
Drive has detected load
unbalance typically due to
earth fault in motor or motor
cable.
Check there are no power factor
correction capacitors or surge absorbers
in motor cable.
Check for an earth fault in motor or motor
cables by measuring the insulation
resistances of motor and motor cable.
Try running the motor in scalar control
mode if allowed. (See parameter 99.04
Motor control mode.)
If no earth fault can be detected, contact
your local ABB representative.
A2B4 Short circuit Short-circuit in motor cable(s)
or motor.
Check motor and motor cable for cabling
errors.
Check there are no power factor
correction capacitors or surge absorbers
in motor cable.
A2BA IGBT overload Excessive IGBT junction to
case temperature. This
warning protects the IGBT(s)
and can be activated by a short
circuit in the 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.
A3A1 DC link overvoltage Intermediate circuit DC voltage
too high (when the drive is
stopped).
Check the supply voltage setting
(parameter 95.01 Supply voltage). Note
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.
A3A2 DC link undervoltage Intermediate circuit DC voltage
too low (when the drive is
stopped).
A3AA DC not charged The voltage of the intermediate
DC circuit has not yet risen to
operating level.
A480
Motor cable overload
Calculated motor cable
temperature has exceeded
warning limit.
Check the settings of parameters 35.61
and 35.62.
Check the dimensioning of the motor
cable in regard to required load.
A490 Incorrect temperature
sensor setup
Problem with motor
temperature measurement.
Check the auxiliary code (format 0XYY
ZZZZ).
“X” identifies the affected temperature
monitoring function (1 = parameter 35.11,
2 = parameter 35.21).
“YY” indicates the selected temperature
source, ie. the setting of the selection
parameter in hexadecimal.
“ZZZZ” indicates the problem (see
actions for each code below).
0001 Sensor type mismatch Check parameters 35.11/35.21 against
91.21/91.24.
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