ABB ACS880+N5350 - 13.3 Warning Messages

13-2 Troubleshooting 3AXD50000011888
13.3 Warning Messages
NOTE: This list contains events that only appear in the Event Log.
Table 13-1 Warning Messages (Alphabetical by Keypad Text)
Warning Fault # Cause What to do
Current Calibration A2A1 Current offset and gain
measurement calibration
will occur at next start.
Informative warning. (See parameter 99.13 ID run
requested.)
Overcurrent A2B1 Output current has
exceeded internal fault
limit.
Check motor load.
Check acceleration times in parameter group 23 Speed
reference ramp (speed control), 26 Torque reference chain
(torque control) or 28 Frequency reference chain
(frequency control). Also check parameters 46.01 Speed
scaling, 46.02 Frequency scaling and 46.03 Torque
scaling.
Check motor and motor cable (including phasing and
delta/star connection).
Check there are no contactors opening and closing in
motor cable.
Check that the start-up data in parameter group 99
corresponds to the motor rating plate.
Check that there are no power factor correction
capacitors or surge absorbers in motor cable.
Check encoder cable (including phasing).
Earth leakage A2B3 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.
Short circuit A2B4 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.
IGBT overload A2BA 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 ow and fan operation.
Check heatsink ns for dust pick-up.
Check motor power against drive power.
DC link overvoltage A3A1 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.
DC link
undervoltage
A3A2 Intermediate circuit DC
voltage too low (when the
drive is stopped).
DC not charged A3AA The voltage of the
intermediate DC circuit
has not yet risen to
operating level.
DC voltage
difference
A3C1 Difference in DC voltages
between parallel-
connected inverter
modules.
Contact your local ABB representative.
Motor cable
overload
A480 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.