WEG MVW3000 Series, Programming Manual

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7
DIAGNOSTICS AND TROUBLESHOOTING
Fault/alarm Reset Possible causes
F0026
Input cubicle not ready fault
Power-on.
Manual (
O
/RESET key).
Auto-reset.
DIx.
Networks.
Input cubicle indicating, via DI2, it is not available
for operation.
Defective input cubicle.
Wiring of DI2 input of PIC board (XC7:2) open (no
feedback of +24 V).
F0027
Improper opening of the input
cubicle
Power-on.
Manual (
O
/RESET key).
Auto-reset.
DIx.
Networks.
Input cubicle opening command with inverter en-
abled.
Wiring of DI1 input of PIC board (XC7:1) open (no
feedback of +24 V).
F0044
Electrical arcing detection fault
Contact WEG Service Center. Electrical arcing detection by the panel sensors.
A0046
Motor Ixt function overload
Automatic eliminated when overload
percentage value (P0076) is below
P0159. Setting of P0156, P0157 and P0158 too low for
the used motor.
Setting of P0159 too low for the used motor.
Load on the motor shaft too high.
Setting of P0136 and P0137 too high (valid for
operation at low speed).
F0048
Forced ventilation fault
Power-on.
Manual (
O
/RESET key).
Auto-reset.
DIx.
Networks.
Fans blocked.
Input air filters blocked.
F0069
Calibration fault
Contact WEG Service Center.
For WEG use. For WEG use.
F0070
Overcurrent/short circuit
Power-on.
Manual (
O
/RESET key).
Auto-reset.
DIx.
Networks.
Inverter output instant current higher than twice
the rated current (detection by Hardware).
Short circuit between two motor phases or
power cables (detection by hardware).
Load inertia too high or acceleration ramp too
fast.
Incorrect regulation and/or configuration param-
eter(s).
Setting of P0169, P0170 or P0171 too high.
IGBTs modules of the cells in short circuit.
F0071
Overcurrent at output
Power-on.
Manual (
O
/RESET key).
Auto-reset.
DIx.
Networks.
Short circuit between two motor phases or
power cables (detection by hardware).
Load inertia too high or acceleration ramp too
fast.
Incorrect regulation and/or configuration param-
eter(s).
Setting of P0169, P0170 or P0171 too high.
F0072
Output over load Ixt function
Power-on.
Manual (
O
/RESET key).
Auto-reset.
DIx.
Networks.
Setting of P0156, P0157 and P0158 too low for
the used motor.
Setting of P0136 and P0137 too high (valid for
operation at load speed).
Load on the motor shaft too high.
The output overload fault does not cause the
opening of the input cubicle.
F0076
Output current unbalanced
Power-on.
Manual (
O
/RESET key).
Auto-reset.
DIx.
Networks.
Motor cable disconnected or poor contact.
Fault on the current feedback circuit.
Difference between output currents above
12.5 % of the rated current for a period above
the limit.
MVW3000 | 7-3