422 Fault tracing
3130 Input phase loss
Programmable fault: 31.21
Supply 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 input power supply
imbalance.
3180 Charge relay lost No acknowledgement
received from charge relay.
Contact your local ABB
representative.
3181 Cross connection
Programmable fault: 31.23
Wiring or earth fault
Incorrect input power and
motor cable connection (i.e.
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.
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.
Check supply cabling, fuses and
switchgear.
3280 Standby timeout Automatic restart failed (see
section Automatic restart on
page 80).
Check the condition of the supply
(voltage, cabling, fuses,
switchgear).
3291 DC voltage difference Difference in DC voltages
between parallel-connected
inverter modules.
Contact your local ABB
representative.
3381 Output phase loss
Programmable fault: 31.19
Motor phase loss
Motor circuit fault due to
missing motor connection (all
three phases are not
connected).
Connect motor cable.
Code
(hex)
Fault Cause What to do