ABB ACS880 Series Firmware Manual page 492

492 Fault tracing
Code
Fault
(hex)
3181 Wiring or earth fault
Programmable fault:
Wiring or earth fault
3210 DC link overvoltage
3220 DC link undervoltage
3280 Standby timeout
3291 BU DC link difference
3381 Output phase loss
Programmable fault:
Motor phase loss
Cause
The drive hardware is supplied
from a common DC bus.
31.23
Incorrect input power and
motor cable connection (i.e.
input power cable is connected
to the motor connection).
Drive has detected load
unbalance typically due to
earth fault in motor or motor
cable.
Excessive intermediate circuit
DC voltage.
Intermediate circuit DC voltage
is not sufficient because of a
missing supply phase, blown
fuse or fault in the rectifier
bridge.
Automatic restart failed (see
section Automatic restart
page 77).
Difference in DC voltages
between parallel-connected
inverter modules.
Motor circuit fault due to
missing motor connection (all
31.19
three phases are not
connected).
What to do
Switch off the protection in parameter
31.23.
Check the power connections.
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
Motor control mode.)
Check that overvoltage control is on
(parameter 30.30 Overvoltage
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.
With parallel-connected modules, check
the auxiliary code (format XXXY YYZZ).
"Y YY" specifies through which BCU
control unit channel the fault was
received.
Check supply cabling, fuses and
switchgear.
With parallel-connected modules, check
the auxiliary code (format XXXY YYZZ).
"Y YY" specifies through which BCU
control unit channel the fault was
received.
Check the condition of the supply
on (voltage, cabling, fuses, switchgear).
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).
Connect motor cable.
99.04
control).