WEG MVW3000 Series, Programming Manual

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7
DIAGNOSTICS AND TROUBLESHOOTING
Fault/alarm Reset Possible causes
F0327
Vn_gnd measurement feedback
fault
Contact WEG Service Center. Fault on the feedback circuit of the voltage be-
tween the motor virtual neutral and the system
ground.
Fiber optic N_GND not connected, inverted or
defective.
F0328
Ib_2 measurement feedback fault
Contact WEG Service Center. Fault on the feedback circuit of the current of
phase B at the inverter input.
Fiber optic Ib_x not connected, inverted or de-
fective.
Refer to the parameter P1893 description.
F0329
Ic_2 measurement feedback fault
Contact WEG Service Center. Fault on the feedback circuit of the current of
phase C at the inverter input.
Fiber optic Ic_x not connected, inverted or de-
fective.
Refer to the parameter P1893 description.
F0330
Ib_3 measurement feedback fault
Contact WEG Service Center. Fault on the feedback circuit of the current of
phase B at the inverter input.
Fiber optic Ib_x not connected, inverted or de-
fective.
Refer to the parameter P1893 description.
F0331
Falha de realimentação na
medição Ic_3
Contact WEG Service Center. Fault on the feedback circuit of the current of
phase C at the inverter input.
Fiber optic Ic_x not connected, inverted or de-
fective.
Refer to the parameter P1893 description.
F0343
Curto-circuito no secundário do
transformador 2
Power-on.
Manual (
O
/RESET key).
Auto-reset.
DIx.
Networks.
Short circuit on the cables of the input trans-
former secondaries.
Short circuit on the coils of the input transformer
secondaries.
Defect on the transformer current measurement
circuit.
Defect on the input voltage measurement circuit.
Incorrect setting of the input transformer param-
eters.
F0346
Curto-circuito no secundário do
transformador 3
Power-on.
Manual (
O
/RESET key).
Auto-reset.
DIx.
Networks.
Short circuit on the cables of the input trans-
former secondaries.
Short circuit on the coils of the input transformer
secondaries.
Defect on the transformer current measurement
circuit.
Defect on the input voltage measurement circuit.
Incorrect setting of the input transformer param-
eters.
F0350
Invalid setting for the Bypass
Power-on.
Manual (
O
/RESET key).
DIx.
Networks.
Bypass situation where the arrangement of the
operating power arms represent an invalid com-
bination for operation.
With the operating power arms available in the
system, it is not possible to obtain a confinement
to provide balanced three-phase voltage for the
motor.
The invalid arrangement condition occurs when
the selected bypass function is the neutral shift.
See the settings of the power arms in parameters
P1155, P1156 and P1157.
MVW3000 | 7-8