Troubleshooting And Maintenance; Faults, Alarms And Possible Causes - WEG CFW-11W Addendum

3.

TROUBLESHOOTING AND MAINTENANCE

3.1.

FAULTS, ALARMS AND POSSIBLE CAUSES

All the alarms and faults of the CFW-11M series are valid for the CFW-11W. Refer to the CFW-11M user manual
for further details of alarms and faults.
The specific faults and alarms of the CFW-11W, and the most likely causes for their occurrence are presented
below.
Fault/Alarm
A300:
High Temperature IGBT U B1
F301:
Overtemperature IGBT U B1
A303:
High Temperature IGBT V B1
F304:
Overtemperature IGBT V B1
A306:
High Temperature IGBT W B1
F307:
Overtemperature IGBT W B1
A309:
High Temperature IGBT U B2
F310:
Overtemperature IGBT U B2
A312:
High Temperature IGBT V B2
F313:
Overtemperature IGBT V B2
A315:
High Temperature IGBT W B2
F316:
Overtemperature IGBT W B2
A318:
High Temperature IGBT U B3
F319:
Overtemperature IGBT U B3
A321:
High Temperature IGBT V B3
F322:
Overtemperature IGBT V B3
A324:
High Temperature IGBT W B3
F325:
Overtemperature IGBT W B3
A327:
High Temperature IGBT U B4
F328:
Overtemperature IGBT U B4
A330:
High Temperature IGBT V B4
F331:
Overtemperature IGBT V B4
Table 3.1: Fault and alarm description
Description
Alarm indicating high temperature measured on the
IGBT temperature sensor (NTC) of phase U book 1
Fault because of overtemperature measured on the
IGBT temperature sensor (NTC) of phase U book 1
Alarm indicating high temperature measured on the
IGBT temperature sensor (NTC) of phase V book 1
Fault because of overtemperature measured on the
IGBT temperature sensor (NTC) of phase V book 1
Alarm indicating high temperature measured on the
IGBT temperature sensor (NTC) of phase W book 1
Fault because of overtemperature measured on the
IGBT temperature sensor (NTC) of phase W book 1
Alarm indicating high temperature measured on the
IGBT temperature sensor (NTC) of phase U book 2
Fault because of overtemperature measured on the
IGBT temperature sensor (NTC) of phase U book 2
Alarm indicating high temperature measured on the
IGBT temperature sensor (NTC) of phase V book 2
Fault because of overtemperature measured on the
IGBT temperature sensor (NTC) of phase V book 2
Alarm indicating high temperature measured on the
IGBT temperature sensor (NTC) of phase W book 2
Fault because of overtemperature measured on the
IGBT temperature sensor (NTC) of phase W book 2
Alarm indicating high temperature measured on the
IGBT temperature sensor (NTC) of phase U book 3
Fault because of overtemperature measured on the
IGBT temperature sensor (NTC) of phase U book 3
Alarm indicating high temperature measured on the
IGBT temperature sensor (NTC) of phase V book 3
Fault because of overtemperature measured on the
IGBT temperature sensor (NTC) of phase V book 3
Alarm indicating high temperature measured on the
IGBT temperature sensor (NTC) of phase W book 3
Fault because of overtemperature measured on the
IGBT temperature sensor (NTC) of phase W book 3
Alarm indicating high temperature measured on the
IGBT temperature sensor (NTC) of phase U book 4
Fault because of overtemperature measured on the
IGBT temperature sensor (NTC) of phase U book 4
Alarm indicating high temperature measured on the
IGBT temperature sensor (NTC) of phase V book 4
Fault because of overtemperature measured on the
IGBT temperature sensor (NTC) of phase V book 4
Troubleshooting and Maintenance
Possible Causes
- High temperature of the coolant
[>40 ºC (>104°F)].
- Clogged hydraulic circuit.
- Defective hydraulic pump.
- Power supply not connected
to the hydraulic pump.
-Leakage.
CFW11W | 3-1