WEG CFW700 Serie Referencia Rápida De Los Parámetros, Fallas Y Alarmas página 24

Fault/Alarm
F070: An overcurrent or a short-circuit at the
Overcurrent/ output, at the DC link or at the braking
Short-circuit resistor, has occurred.
F071: An output overcurrent has occurred.
Output
Overcurrent
F072: The motor overload protection has
Motor Overload tripped.
Note:
It can be disabled by setting P0348 =
0 or 3.
F074: A ground fault occurred either in the
Ground Fault cable between the inverter and the motor
or in the motor itself.
Note:
It can be disabled by setting P0343 = 0.
F078: Fault related to the PTC temperature
Motor sensor installed in the motor.
Overtemperature Note:
- It can be disabled by setting P0351 =
0 or 3.
- An analog input and an analog output
must be set for the PTC function.
F079: Incorrect encoder signals.
Encoder Signal
Fault
F080: Microcontroller watchdog fault.
CPU Watchdog
F084: Auto-Diagnosis Fault.
Auto-Diagnosis
Fault
A090: External alarm monitored through a
External Alarm digital input.
Note:
It is necessary to program a digital input
for "No external alarm".
F091: External fault monitored through a digital
External Fault input.
Note:
It is necessary to program a digital input
for "No external fault".
A098: General enable signal is missing during
Activate General the
Enable self-tuning.
F099: The current measurement circuit is
Invalid Current presenting an abnormal value for null
Offset current.
A110: Fault detected through PTC type
High Motor temperature sensors installed in the
Temperature motor.
Note:
- It can be disabled by setting P0351 =
0 or 2.
- An analog input and an analog output
must be set for the PTC function.
Quick Parameter Reference, Faults and Alarms
Description Possible Causes
Short-circuit between two motor phases.
Short-circuit between the dynamic braking resistor
connection cables.
Shorted IGBT modules.
Excessive load inertia or too short acceleration ramp.
P0135, or P0169 and P0170 settings are too high.
The settings of P0156, P0157 and P0158 are too low
for the used motor.
There is excessive load at the motor shaft.
Short-circuit to the ground in one or more output
phases.
Motor cable capacitance is too large, resulting in
current peaks at the output.
Excessive load at the motor shaft.
Severe duty cycle (too many starts / stops per minute).
Too high surrounding air temperature.
Loose connection or short-circuit (resistance < 100
Ω) in the wiring connected to the motor thermistors.
Not installed motor thermistors.
Blocked motor shaft.
Broken wiring between the motor encoder and the
encoder interface accessory.
Defective encoder.
Electrical noise.
Defect in the inverter internal circuitry.
Firmware incompatible with an accessory.
A digital input (DI1 to DI8) programmed for "No external
alarm" is open.
A digital input (DI1 to DI8) programmed for "No external
fault" is open.
The digital input programmed for "General Enable"
is open.
Defect in the inverter internal circuitry.
Excessive load at the motor shaft.
Severe duty cycle (too many starts / stops per minute).
Too high surrounding air temperature.
Not installed motor thermistors.
Blocked motor shaft.
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