Fault Messages - ABB ACS880 Firmware Manual

176 Fault tracing

Fault messages

Code Fault
(hex)
2E00 Overcurrent
2E05 BU current difference Phase current difference
2E08 Ext earth leakage
2E09 DC short circuit
Cause
Too high inverter load or
short circuit.
between parallel-connected
modules.
External earth fault triggered
by input selected with
parameter 131.28 Ext earth
leakage signal source.
There is a short-circuit in DC
busbar.
What to do
Check supply voltage.
Check that there are no power factor
correction capacitors or surge
absorbers in supply cable.
Check motor load and acceleration
times.
Check power semiconductors
(thyristor/diodes) and current
transducers.
Check the auxiliary code (format XXXY
YYZZ). With parallel-connected
modules, "Y YY" specifies through
which control unit channel the fault
was received. "ZZ" indicates the phase
that triggered the fault (0: No detailed
information available, 1: U-phase, 2: V-
phase, 4: W-phase, 3/5/6/7: multiple
phases).
Check converter fuses.
Check converter(s).
Check inverter(s).
Power off all boards.
If the fault persists, contact your local
ABB representative.
Check the auxiliary code (format
XXXYYYZZ). "XXX" specifies the source
of the first error (see "YYY"). "YYY"
specifies the module through which
control unit channel the fault was
received (001: Channel 1, 002: Channel
2, 004: Channel 3, 008: Channel 4,
010: Channel 5, ..., 800: Channel 12,
other than exponent of 2:
combinations of multiple channels
from the above. For example, 003
refers to channels 1 and 2.). "ZZ"
indicates the phase (01: U, 02: V,
03: W).
See AE87 Ext earth leakage
Check DC busbar.
Check the auxiliary code to identify the
diode supply unit (15: single diode
supply unit or the first parallel-
connected diode supply unit, 16: the
second parallel-connected diode
supply unit).
(page 174).