WEG CFW-11 Programming Manual page 33

Fault/Alarm
A046: Load is too high for the used motor.
High Load on Motor Note:
It may be disabled by setting P0348=0 or 2.
A047: An IGBT overload alarm occurred.
IGBT Overload Alarm Note:
It may be disabled by setting P0350=0 or 2.
F048: An IGBT overload fault occurred.
IGBT Overload Fault Note:
It may be disabled by setting P0350=0 or 2.
A050: A high temperature alarm was detected by the NTC
IGBT High Temperature U temperature sensors located on the IGBTs.
Note:
It may be disabled by setting P0353=2 or 3.
F051: A high temperature fault was detected by the NTC
IGBT Overtemperature U temperature sensors located on the IGBTs.
A053: Alarm of high temperature measured at the
High Temperature on temperature sensors (NTC) of the IGBTs.
IGBTs V Note:
It can be disabled by setting P0353 = 2 or 3.
F054: Fault of overtemperature measured at the
Overtemperature on temperature sensors (NTC) of the IGBTs.
IGBTs V
A056: Alarm of high temperature measured at the
High Temperature on temperature sensors (NTC) of the IGBTs.
IGBTs W Note:
It can be disabled by setting P0353 = 2 or 3.
F057: Fault of overtemperature measured at the
Overtemperature on temperature sensors (NTC) of the IGBTs.
IGBTs W
F067: Fault related to the phase relation of the encoder
Incorrect Encoder/ signals.
Motor Wiring Note:
- This fault can only happen during the self-tuning
routine.
- It is not possible to reset this fault.
- In this case, turn off the power supply, solve the
problem, and then turn it on again.
F070: Overcurrent or short-circuit detected at the output,
Overcurrent / in the DC bus, or at the braking resistor.
Short-circuit Note:
It is available only for models of frames A, B, and C.
F071: The inverter output current was too high for too long.
Output Overcurrent
F072: The motor overload protection operated.
Motor Overload Note:
It may be disabled by setting P0348=0 or 3.
F074: A ground fault occured either in the cable between
Ground Fault the inverter and the motor or in the motor itself.
Note:
It may be disabled by setting P0343=0.
F076: Fault of motor current unbalance.
Motor Current Note:
Imbalance It may be disabled by setting P0342=0.
F077: The dynamic braking resistor overload protection
DB Resistor Overload operated.
F078: Fault related to the PTC temperature sensor installed
Motor in the motor.
Overtemperature Note:
- It may be disabled by setting P0351=0 or 3.
- It is required to set the analog input / output to the
PTC function.
Quick Parameter Reference, Faults and Alarms
Description Possible Causes
Settings of P0156, P0157, and P0158 are too low for the
used motor.
Motor shaft load is excessive.
Inverter output current is too high.
Inverter output current is too high.
Surrounding air temperature is too high (>50 °C (122 °F))
and output current is too high.
Blocked or defective fan.
Inverter heatsink is completely covered with dust.
High ambient temperature around the inverter (>50 °C)
and high output current.
Blocked or defective fan.
Very dirty heatsink.
High ambient temperature around the inverter (>50 °C)
and high output current.
Blocked or defective fan.
Very dirty heatsink.
Output motor cables U, V, W are inverted.
Encoder channels A and B are inverted.
Encoder was not properly mounted.
Short-circuit between two motor phases.
Short-circuit between the connection cables of the
dynamic braking resistor.
IGBT modules are shorted.
Excessive load inertia or acceleration time too short.
Settings of P0135, P0169, P0170, P0171, and P0172
are too high.
Settings of P0156, P0157, and P0158 are too low for the
used motor.
Motor shaft load is excessive.
Shorted wiring in one or more of the output phases.
Motor cable capacitance is too large, resulting in current
peaks at the output.
(1)
Loose connection or broken wiring between the motor
and inverter connection.
Vector control with wrong orientation.
Vector control with encoder, encoder wiring or encoder
motor connection inverted.
Excessive load inertia or desacceleration time too short.
Motor shaft load is excessive.
Wrong setttings for parameters P0154 and P0155.
Excessive load at the motor shaft.
Excessive duty cycle (too many starts / stops per minute).
Surrounding air temperature too high.
Loose connection or short-circuit (resistance < 100 Ω) in
the wiring connected to the motor termistor.
Motor termistor is not installed.
Blocked motor shaft.
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