7
DIAGNOSTICS AND TROUBLESHOOTING
Fault/alarm
Reset
Possible causes
F0900
Cell W5 DC link overvoltage
Power-on.
Manual (
O
/RESET key).
Auto-reset.
DIx.
Networks.
Inverter input supply voltage too high.
Incorrect setting of the inverter main transformer
taps.
Cell DC link voltage above 1200 V.
Load inertia too high or deceleration ramp too
short.
Setting of P0151 too high.
F0901
Cell W5 DC link undervoltage
Power-on.
Manual (
O
/RESET key).
Auto-reset.
DIx.
Networks.
Inverter input supply voltage too low.
Incorrect setting of the inverter main transformer
taps.
Cell DC link voltage below 745 V below 652 V for
operation in vector control.
A0902
Overtemperature on cell W5 IGBT
module
Automatically eliminated when the tem-
perature at the cell heatsink presents a
value below 80 °C.
Temperature on the cell heatsink above 85 °C.
Ambient temperature too high (> 40 °C) and high
output current.
Fans locked or defective.
Air input filters blocked.
F0903
Overtemperature on cell W5 IGBT
module
Power-on.
Manual (
O
/RESET key).
Auto-reset.
DIx.
Networks.
Temperature on the cell heatsink above 90 °C.
Ambient temperature too high (> 40 °C) and high
output current.
Fans locked or defective.
Air input filters blocked.
F0904
Defective temperature sensor or
undertemperature on cell W5 IGBT
Contact WEG Service Center.
Cell temperature measurement sensor defective.
Cell temperature sensor disconnected.
Temperature on the cell heatsink below -10 °C.
F0905
Cell W5 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.
F0906
Cell W5 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.
F0908
Cell W5 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.
F0910
Cell W5 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.
MVW3000 | 7-42
Summary of Contents for MVW3000 Series
Page 2: ......
Page 58: ...1 QUICK REFERENCE OF PARAMETERS AND FAULTS MVW3000 1 52...
Page 62: ...2 SAFETY INSTRUCTIONS MVW3000 2 4...
Page 192: ...6 SPECIAL FUNCTIONS MVW3000 6 4...
Page 262: ...7 DIAGNOSTICS AND TROUBLESHOOTING MVW3000 7 70...
Page 263: ......
