WEG CFW-11 Programming Manual page 37

Fault/Alarm
F334: Overtemperature fault measured with the temperature
Overtemperature at IGBT sensor (NTC) of the book 4 W phase IGBT
W B4
A336: High temperature alarm measured with the
High Temperature at IGBT temperature sensor (NTC) of the book 5 U phase
U B5 IGBT
F337: Overtemperature fault measured with the temperature
Overtemperature at IGBT sensor (NTC) of the book 5 U phase IGBT
U B5
A339: High temperature alarm measured with the
High Temperature at IGBT temperature sensor (NTC) of the book 5 V phase
V B5 IGBT
F340: Overtemperature fault measured with the temperature
Overtemperature at IGBT sensor (NTC) of the book 5 V phase IGBT
V B5
A342: High temperature alarm measured with the
High Temperature at IGBT temperature sensor (NTC) of the book 5 W phase
W B5 IGBT
F343: Overtemperature fault measured with the temperature
Overtemperature at IGBT sensor (NTC) of the book 5 W phase IGBT
W B5
A345: Overload alarm at book 1 U phase IGBT
High Load at IGBT U B1
F346: Overload fault at book 1 U phase IGBT
Overload at IGBT U B1
A348: Overload alarm at book 1 V phase IGBT
High Load at IGBT V B1
F349: Overload fault at book 1 V phase IGBT
Overload at IGBT V B1
A351: Overload alarm at book 1 W phase IGBT
High Load at IGBT W B1
F352: Overload fault at book 1 W phase IGBT
Overload at IGBT W B1
A354: Overload alarm at book 2 U phase IGBT
High Load at IGBT U B2
F355: Overload fault at book 2 U phase IGBT
Overload at IGBT U B2
A357: Overload alarm at book 2 V phase IGBT
High Load at IGBT V B2
F358: Overload fault at book 2 V phase IGBT
Overload at IGBT V B2
A360: Overload alarm at book 2 W phase IGBT
High Load at IGBT W B2
F361: Overload fault at book 2 W phase IGBT
Overload at IGBT W B2
A363: Overload alarm at book 3 U phase IGBT
High Load at IGBT U B3
F364: Overload fault at book 3 U phase IGBT
Overload at IGBT U B3
A366: Overload alarm at book 3 V phase IGBT
High Load at IGBT V B3
F367: Overload fault at book 3 V phase IGBT
Overload at IGBT V B3
A369: Overload alarm at book 3 W phase IGBT
High Load at IGBT W B3
F370: Overload fault at book 3 W phase IGBT
Overload at IGBT W B3
Quick Parameter Reference, Faults and Alarms
Description 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.
High current at the inverter output (see figure 8.1).
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