WEG CFW-11W, Дополнение

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Troubleshooting and Maintenance
CFW11W | 3-3
Fault/Alarm Description Possible Causes
A398:
Current Imbalance
Phase W B3
Alarm indicating current imbalance of phase W book
3. It indicates an imbalance of 20 % in the current
distribution between this phase and the lowest
current of the same phase in another book, only when
the current in this phase is above 75 % of its rated
value.
- Poor electrical connection between the
DC link and the power unit.
- Poor electrical connection between
the power unit output and the motor.
Note: In case of fast accelerations
and brakes, this alarm may be
displayed momentarily, disappearing
after some seconds. That does not
indicate any anomalies on the
inverter.
In case this alarm remains on
when the motor is running at
constant speed, it indicates an
anomaly in the current
distribution between the power
units.
A399:
Current Imbalance Phase U B4
Alarm indicating current imbalance of phase U book
4. It indicates an imbalance of 20 % in the current
distribution between this phase and the lowest
current of the same phase in another book, only when
the current in this phase is above 75 % of its rated
value.
A400:
Current Imbalance Phase V B4
Alarm indicating current imbalance of phase V book
4. It indicates an imbalance of 20 % in the current
distribution between this phase and the lowest
current of the same phase in another book, only when
the current in this phase is above 75 % of its rated
value.
A401:
Current Imbalance Phase W B4
Alarm indicating current imbalance of phase W book
4. It indicates an imbalance of 20 % in the current
distribution between this phase and the lowest
current of the same phase in another book, only when
the current in this phase is above 75 % of its rated
value.
A402:
Current Imbalance Phase U B5
Alarm indicating current imbalance of phase U book
5. It indicates an imbalance of 20 % in the current
distribution between this phase and the lowest
current of the same phase in another book, only when
the current in this phase is above 75 % of its rated
value.
A403:
Current Imbalance Phase V B5
Alarm indicating current imbalance of phase V book
5. It indicates an imbalance of 20 % in the current
distribution between this phase and the lowest
current of the same phase in another book, only when
the current in this phase is above 75 % of its rated
value.
A404:
Current Imbalance Phase W B5
Alarm indicating current imbalance of phase W book
5. It indicates an imbalance of 20 % in the current
distribution between this phase and the lowest
current of the same phase in another book, only when
the current in this phase is above 75 % of its rated
value.
F406:
Overtemperature on the
braking module
This fault/alarm is related to the setting of parameter
P0832 and P0833
- DIM1 input function;
- DIM2 input function.
- Overtemperature (rectifier/braking)
- Fault on the electrical
connection between digital input
and the sensor.
- Fault of the corresponding sensor.
- Fault on the device monitored by
the sensor.
F408:
Fault of the cooling system
F410:
External fault
F412:
Overtemperature on the
tifi
A010:
High temperature on the
rectifier