WEG CFW-11 Programming Manual page 209

P0350
It enables F048 – IGBT Overload Fault. In order to avoid the occurrence of the fault, the switching frequency is redu-
0
ced automatically to 2.5 kHz (*)
It enables the fault F048 and the alarm A047 – IGBT Overload Alarm. In order to avoid the occurrence of the fault,
1
the switching frequency is reduced automatically to 2.5 kHz (*)
2 It enables F048. Without the reduction of the switching frequency
3 It enables the alarm A047 and the fault F048. Without the reduction of the switching frequency
(*) It reduces the switching frequency when:
- The output current exceeds 1.5 x I
- The temperature at the IGBT case is less than 10°C from the maximum temperature; and
- P0297=2 (5 kHz).
P0351 – Motor overtemperature Protection
Adjustable 0 = Off
Range: 1 = Fault/Alarm
2 = Fault
3 = Alarm
Proprieties: CFG
Access groups 01 PARAMETER GROUPS
via HMI:
Description:
This parameter is useful when the motor is equipped with PTC type temperature sensors, allowing the configuration
of the protection level for the motor overtemperature function. The details on the actuation of the available options
are in the table 15.4. Refer also to the section 15.2.
P0351
0 = Off
1 = Fault / Alarm
2 = Fault
3 = Alarm
Table 15.3 - Actions for the parameter P0350 options
(1.1 x I ); or
nomHD nomND
45 Protections
Table 15.4 - Actions for the parameter P0351 options
The overtemperature protection is disabled. Faults or alarms for the motor operation in the
overtemperature condition will not be generated
The inverter will show an alarm (A110) and will generate a fault (F078) when the motor reaches
the overtemperature actuation values. Once a fault is generated, the inverter will be disabled
Only the fault (F078) will be generated when the motor reaches the overtemperature protection
trip level, and the inverter will be disabled
Only the alarm (A110) will be generated when the motor reaches the protection actuation level,
and the inverter remains operating
Action
Action
Faults and Alarms
Factory 1
Setting:
15-11
15