WEG CFW-11 Programming Manual page 39

Fault/Alarm
A396: Phase U book 3 current unbalance alarm.
Current Unbalance at It indicates a 20 % unbalance in the current
Phase U B3 distribution between this phase and the smallest
current of the same phase in other book, only when
the current in this phase is higher than 75 % of its
nominal value.
A397: Phase V book 3 current unbalance alarm.
Current Unbalance at It indicates a 20 % unbalance in the current
Phase V B3 distribution between this phase and the smallest
current of the same phase in other book, only when
the current in this phase is higher than 75 % of its
nominal value.
A398: Phase W book 3 current unbalance alarm.
Current Unbalance at It indicates a 20 % unbalance in the current
Phase W B3 distribution between this phase and the smallest
current of the same phase in other book, only when
the current in this phase is higher than 75 % of its
nominal value.
A399: Phase U book 4 current unbalance alarm.
Current Unbalance at It indicates a 20 % unbalance in the current
Phase U B4 distribution between this phase and the smallest
current of the same phase in other book, only when
the current in this phase is higher than 75 % of its
nominal value.
A400: Phase V book 4 current unbalance alarm.
Current Unbalance at It indicates a 20 % unbalance in the current
Phase V B4 distribution between this phase and the smallest
current of the same phase in other book, only when
the current in this phase is higher than 75 % of its
nominal value.
A401: Phase W book 4 current unbalance alarm.
Current Unbalance at It indicates a 20 % unbalance in the current
Phase W B4 distribution between this phase and the smallest
current of the same phase in other book, only when
the current in this phase is higher than 75 % of its
nominal value.
A402: Phase U book 5 current unbalance alarm.
Current Unbalance at It indicates a 20 % unbalance in the current
Phase U B5 distribution between this phase and the smallest
current of the same phase in other book, only when
the current in this phase is higher than 75 % of its
nominal value.
A403: Phase V book 5 current unbalance alarm.
Current Unbalance at It indicates a 20 % unbalance in the current
Phase V B5 distribution between this phase and the smallest
current of the same phase in other book, only when
the current in this phase is higher than 75 % of its
nominal value.
A404: Phase W book 5 current unbalance alarm.
Current Unbalance at It indicates a 20 % unbalance in the current
Phase W B5 distribution between this phase and the smallest
current of the same phase in other book, only when
the current in this phase is higher than 75 % of its
nominal value.
F406: These faults/alarms are associated to the
configuration of the parameters P0832 and P0833.
Overtemperature at the
- Function of the DIM1 input.
Braking Module
- Function of the DIM2 input.
F408:
Failure in the Cooling
System
F410:
External Fault
F412:
Overtemperature at the
Rectifier
Quick Parameter Reference, Faults and Alarms
Description Possible Causes
Bad electric connection between the DC bus and the
power unit.
Bad electric connection between the power unit output
and the motor.
Note: In case of fast acceleration or braking, this alarm may
be indicated momentarily, disappearing after a few seconds.
This is not an indication of any anomaly in the inverter.
If this alarm persists when the motor is operating at a
constant speed, it is an indication of an anomaly in the
current distribution among the power units.
Overtemperature (rectifier/braking).
Failure in the connection between the digital input and
the sensor.
Failure of the corresponding sensor.
Failure in the device being monitored by the sensor.
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