What to do
Cause
Event name /
Aux. code
Code
(hex)
With parallel-connected modules,
check the auxiliary code (format XXXY
YYZZ).
“Y YY” specifies through which BCU
control unit channel the fault was
received.
If no earth fault can be detected,
contact your local ABB representative.
Check motor and motor cable for
cabling errors.
Short-circuit in motor cable(s) or
motor.
Short circuit
2340
If the control unit is externally
powered, check the setting of
parameter
.
Check that parameter
has been set correctly.
Check there are no power factor
correction capacitors or surge
absorbers in motor cable.
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 location of the short
circuit (0: No detailed information
available, 1: Upper branch of U-phase,
2: Lower branch of U-phase, 4: Upper
branch of V-phase, 8: Lower branch of
V-phase, 10: Upper branch of W-phase,
20: Lower branch of W-phase, other:
combinations of the above).
Check auxiliary code 40h = DC
capacitor short circuit.
After correcting the cause of the fault,
reboot the control unit (using
parameter
)
or by cycling power.
Check motor cable.
Excessive IGBT junction to case
temperature. This fault protects the
IGBT overload
2381
Check ambient conditions.
IGBT(s) and can be activated by a
short circuit in the motor cable.
Check air flow and fan operation.
Check heatsink fins for dust pick-up.
Check motor power against drive
power.
Check motor cabling.
AC phase current difference between
parallel-connected inverter modules
is excessive.
BU current
difference
2391
Check there are no power factor
correction capacitors or surge
absorbers in motor cable.
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, other: combinations of the
654 Fault tracing
Содержание ACS880 Series
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