Fault tracing 425
2381 IGBT overload Excessive IGBT junction to
case temperature. This fault
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.
2392 BU earth leakage Total earth leakage of inverter
modules is excessive.
Check there are no power factor
correction capacitors or surge absorbers
in motor cable.
Measure insulation resistances of motor
cables and motor.
Contact your local ABB representative.
3130 Input phase loss Intermediate circuit DC voltage
is oscillating due to missing
input power line phase or
blown fuse.
Check input power line fuses.
Check for loose power cable
connections.
Check for input power supply imbalance.
3181 Wiring or earth fault
Programmable fault: 31.23
Wiring or earth fault
Incorrect input power and
motor cable connection (ie.
input power cable is connected
to drive motor connection).
Check input power connections.
3210 DC link overvoltage Excessive intermediate circuit
DC voltage.
Check that overvoltage control is on
(parameter 30.30 Overvoltage control).
Check that the supply voltage matches
the nominal input voltage of the drive.
Check the supply line for static or
transient overvoltage.
Check brake chopper and resistor (if
present).
Check deceleration time.
Use coast-to-stop function (if applicable).
Retrofit drive with brake chopper and
brake resistor.
Check that the brake resistor is
dimensioned properly and the resistance
is between acceptable range for the
drive.
3220 DC link undervoltage Intermediate circuit DC voltage
is not sufficient because of a
missing supply phase, blown
fuse or fault in the rectifier
bridge. See also section DC
undervoltage (page 81).
Check supply cabling, fuses and
switchgear.
3291 BU DC link difference Difference in DC voltages
between parallel-connected
inverter modules.
Check the auxiliary code (format XXXY
YYZZ). “XXX” specifies the source of the
first error (see “YYY”). “YYY” specifies
the module through which BCU control
unit channel the fault was received (1:
Channel 1, 2: Channel 2, 4: Channel 3, 8:
Channel 4, …, 800: Channel 12).
Code
(hex)
Fault / Aux. code (aux
code visible only on
assistant control panel
and drive composer)
Cause What to do
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