ABB ACS880-104

570 Fault tracing
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.
With A3A1 or A3A2 on parallel-
connected inverter modules, the auxiliary
code indicates the affected module. The
format of the code is 000X XX00, where
“XXX” specifies the channel on the BCU
control unit.
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 (0 = parameter 35.11,
1 = 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.
0002 Temperature under limit Check parameters
35.11…35.14/35.21…35.24 (and
91.21/91.24 if sensor is connected to an
encoder interface).
Check the sensor and its wiring.
0003 Short circuit
0004 Open circuit
A491 External temperature
1
(Editable message text)
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.
A492 External temperature
2
(Editable message text)
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.
Code
(hex)
Warning Cause What to do