WEG MVW3000 Series, Programming Manual

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7
DIAGNOSTICS AND TROUBLESHOOTING
Fault/alarm Reset Possible causes
F0680
Cell V4 phase IGBT
Contact WEG Service Center. Short circuit at the inverter output.
Trigger board of the IGBTs of the cell phase arm
disconnected.
IGBTs of the cell phase arm operating out of the
saturation region.
IGBTs or trigger board of the cell phase arm de-
fective.
Fault on the desaturation signal feedback or
gate-driver supply.
F0681
Cell V4 neutral IGBT
Contact WEG Service Center. Short circuit at the inverter output.
Trigger board of the IGBTs of the cell neutral arm
disconnected.
IGBTs of the cell neutral arm operating out of the
saturation region.
IGBTs or trigger board of the cell neutral arm de-
fective.
Fault on the desaturation signal feedback or
gate-driver supply.
F0683
Cell V4 phase pulse feedback
Contact WEG Service Center. Fault on the commutation of the IGBTs of the cell
phase arm.
Measurement circuit of the confirmation signal of
the commutation of the IGBTs of the phase arm
disconnected or defective.
IGBTs or trigger board of the cell phase arm de-
fective.
F0685
Cell V4 neutral pulse feedback
Contact WEG Service Center. Fault on the confirmation of the commutation of
the IGBTs of the cell neutral arm.
Measurement circuit of the confirmation signal of
the commutation of the IGBTs of the neutral arm
disconnected or defective.
IGBTs or trigger board of the cell neutral arm de-
fective.
F0686
Cell V4 electronics power supply
Contact WEG Service Center. Voltages of the internal electronic circuits of the
cell out of the operation level.
Defect on the cell power supply.
F0691
Cell V4 modulation synchronism
Contact WEG Service Center. Fault in the synchronism between the MCC1
control board of the cell and the MVC3 main con-
trol.
F0692
Cell V4 bypass system
Contact WEG Service Center. Fault in the operation of the cell bypass system.
Bypass system is not connected or defective.
F0693
Communication with cell V4
Contact WEG Service Center. Fault on the communication between the MCC1
control board of the cell and the MVC3 main con-
trol.
Break or defect on the cell communication optic
cable.
F0695
Incompatible cell V4 firmware
Contact WEG Service Center. Firmware version of the MCC1 control board of
the cell incompatible with the MVC3 main control.
F0696
Incompatible cell V4 model
Contact WEG Service Center. Cell model incompatible or invalid with the in-
verter model.
F0697
Cell V4 insulation defective
Contact WEG Service Center. Fault in the internal insulation of the cell: Contact
between some energized point of the circuit and
the frame.
Fault on the capacitor discharge resistors of the
cell DC link.
F0698
Firmware update or PLD cell V4
Contact WEG Service Center. Fault in the update process of the processor
firmware or in the reconfiguration of the cell PLD.
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