WEG CFW-11 Programming Manual page 36

Quick Parameter Reference, Faults and Alarms
0 Fault/Alarm
A303:
High Temperature at IGBT
V B1
F304:
Overtemperature at IGBT
V B1
A306:
High Temperature at IGBT
W B1
F307:
Overtemperature at IGBT
W B1
A309:
High Temperature at IGBT
U B2
F310:
Overtemperature at IGBT
U B2
A312:
High Temperature at IGBT
V B2
F313:
Overtemperature at IGBT
V B2
A315:
High Temperature at IGBT
W B2
F316:
Overtemperature at IGBT
W B2
A318:
High Temperature at IGBT
U B3
F319:
Overtemperature at IGBT
U B3
A321:
High Temperature at IGBT
V B3
F322:
Overtemperature at IGBT
V B3
A324:
High Temperature at IGBT
W B3
F325:
Overtemperature at IGBT
W B3
A327:
High Temperature at IGBT
U B4
F328:
Overtemperature at IGBT
U B4
A330:
High Temperature at IGBT
V B4
F331:
Overtemperature at IGBT
V B4
A333:
High Temperature at IGBT
W B4
0-30
Description
High temperature alarm measured with the
temperature sensor (NTC) of the book 1 V phase
IGBT
Overtemperature fault measured with the temperature
sensor (NTC) of the book 1 V phase IGBT
High temperature alarm measured with the
temperature sensor (NTC) of the book 1 W phase
IGBT
Overtemperature fault measured with the temperature
sensor (NTC) of the book 1 W phase IGBT
High temperature alarm measured with the
temperature sensor (NTC) of the book 2 U phase
IGBT
Overtemperature fault measured with the temperature
sensor (NTC) of the book 2 U phase IGBT
High temperature alarm measured with the
temperature sensor (NTC) of the book 2 V phase
IGBT
Overtemperature fault measured with the temperature
sensor (NTC) of the book 2 V phase IGBT
High temperature alarm measured with the
temperature sensor (NTC) of the book 2 W phase
IGBT
Overtemperature fault measured with the temperature
sensor (NTC) of the book 2 W phase IGBT
High temperature alarm measured with the
temperature sensor (NTC) of the book 3 U phase
IGBT
Overtemperature fault measured with the temperature
sensor (NTC) of the book 3 U phase IGBT
High temperature alarm measured with the
temperature sensor (NTC) of the book 3 V phase
IGBT
Overtemperature fault measured with the temperature
sensor (NTC) of the book 3 V phase IGBT
High temperature alarm measured with the
temperature sensor (NTC) of the book 3 W phase
IGBT
Overtemperature fault measured with the temperature
sensor (NTC) of the book 3 W phase IGBT
High temperature alarm measured with the
temperature sensor (NTC) of the book 4 U phase
IGBT
Overtemperature fault measured with the temperature
sensor (NTC) of the book 4 U phase IGBT
High temperature alarm measured with the
temperature sensor (NTC) of the book 4 V phase
IGBT
Overtemperature fault measured with the temperature
sensor (NTC) of the book 4 V phase IGBT
High temperature alarm measured with the
temperature sensor (NTC) of the book 4 W phase
IGBT
Possible Causes
High ambient temperature (>45°C) and high output
current.
Blocked or defective fan.
Fins of the book heatsink too dirty, impairing the air flow.