Fault tracing
163
CUR UNBAL xx
(2330)
02.15 AW1 bit 14
(programmable
Fault Function
30.17)
Drive has detected excessive output current
unbalance in inverter unit of several parallel
connected inverter modules. This can be
caused by external fault (ground fault, motor,
motor cabling, etc.) or internal fault (damaged
inverter component). xx (2...12) refers to
inverter module number.
Check there are no power factor correction
capacitors or surge absorbers in motor cable.
Check that there is no ground fault in motor or
motor cables: measure insulation resistances
of motor and motor cable.
If no earth fault can be detected, contact your
local ABB representative.
DC BUS LIM
(3211)
Drive limits torque due to too high or too low
intermediate circuit DC voltage.
Informative alarm
Check Fault Function parameters.
ENC CABLE
(7310)
Pulse encoder phase signal is missing. Check pulse encoder and its wiring.
Check pulse encoder interface module and its
wiring.
ENCODER A<>B
(7302)
Pulse encoder phasing is wrong: Phase A is
connected to terminal of phase B and vice
versa.
Interchange connection of pulse encoder
phases A and B.
ENCODER ERR
(7301)
02.15 AW 1 bit 05
Communication fault between pulse encoder
and pulse encoder interface module and
between module and drive
Check pulse encoder and its wiring, pulse
encoder interface module and its wiring,
parameter group 50 PULSE ENCODER
settings.
FAN OTEMP
(FF83)
Excessive temperature of drive output filter fan.
Supervision is in use in step-up drives.
Stop drive. Let it cool down.
Check ambient temperature.
Check fan rotates in correct direction and air
flows freely.
GROUND FAULT
02.15 AW 1 bit 14
(programmable
Fault Function
30.17)
Drive has detected load unbalance typically
due to earth fault in motor or motor cable.
Check there are no power factor correction
capacitors or surge absorbers in motor cable.
Check that there is no earth fault in motor or
motor cables: measure insulation resistances
of motor and motor cable.
If no earth fault can be detected, contact your
local ABB representative.
HW RECONF RQ
(FF38)
Inverter type (e.g. sr0025_3) has been
changed. Inverter type is usually changed at
factory or during drive implementation.
Wait until alarm POWEROFF! activates and
switch control board power off to validate
inverter type change.
ID DONE
(FF32)
Drive has performed motor identification
magnetization and is ready for operation. This
warning belongs to normal start-up procedure.
Continue drive operation.
ID MAGN
(FF31)
Motor identification magnetization is on. This
warning belongs to normal start-up procedure.
Wait until drive indicates that motor
identification is completed.
ID MAGN REQ
(FF30)
Motor identification is required. This warning
belongs to normal start-up procedure. Drive
expects user to select how motor identification
should be performed: By Identification
Magnetization or by ID Run.
Start Identification Magnetization by pressing
Start key, or select ID Run and start (see
parameter 99.10).
ID N CHANGED
(FF68)
Drive ID number has been changed from 1. Change ID number back to 1. See chapter
Control panel.
Warning Cause What to Do
To Next Page
Loading...
