Warning, fault and pure event messages
What to doCause
Event name /
Aux. code
Code
(hex)
Try performing the current calibration
again (select Current measurement
Measured offset of output phase
current measurement or difference
Calibration2281
calibration at parameter 99.13). If thebetween output phase U2 and W2
fault persists, contact your local ABB
representative.
current measurement is too great (the
values are updated during current
calibration).
Check motor load.Output current has exceeded internal
fault limit.
Overcurrent2310
If the control unit is externally
powered, check the setting of
parameter 95.04 Control board supply.
Check acceleration times in parameter
group 23 Speed reference ramp (speed
control), 26 Torque reference chain
(torque control). Also check
parameters 46.1 Speed scaling, 46.2
Frequency scaling and 46.3 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).
Check the auxiliary code (format XXXY
YYZZ). With parallel-connected
inverter modules, “Y YY” specifies
through which BCU control unit
channel the fault was received. “ZZ”
indicates the phase that triggered the
fault (0: No detailed information
available, 1: U-phase, 2: Vphase, 4:
W-phase, 3/5/6/7: multiple phases).
If the control unit is externally
powered, check the setting of
parameter 95.4 Control board supply.
Drive has detected load unbalance
typically due to earth fault in motor or
motor cable.
Earth leakage2330
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 99.4
Motor control mode.)
Fault tracing 551
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