WEG CFW500 V1.8X, Руководство по программированию, Страница: 55 / 172

Identification of the Inverter Model and Accessories
CFW500 | 6-3
6
P0295 – Inverter Rated Current
Adjustable
Range:
0.0 to 200.0 A Factory
Setting:
According to
inverter model
Properties: ro
Access Groups
via HMI:
READ
Description:
This parameter presents the inverter rated current as per Table 6.2 on page 6-2 .
P0296 – Line Rated Voltage
Adjustable
Range:
0 = 200 - 240 V
1 = 380 - 480 V
2 = 500 - 600 V Factory
Setting:
According to
inverter model
Properties:
ro, cfg
Access Groups
via HMI:
READ
Description:
This parameter presents the inverter power supply rated voltage as shown in Table 6.2 on page 6-2 .
P0297 – Switching Frequency
Adjustable
Range:
2500 to 15000 Hz
Factory
Setting:
5000 Hz
Properties:
Access Groups
via HMI:
Description:
You can use this parameter to define the inverter IGBT switching frequency.
The inverter switching frequency may be adjusted according to the application needs. Higher switching frequencies
imply less acoustic noise in the motor. However, the switching frequency choice results in a compromise among
the acoustic noise in the motor, the inverter IGBT losses and the maximum permitted currents.
The reduction of the switching frequency reduces the effects related to the motor instability, which occurs in
certain application conditions. Besides, it reduces the earth leakage current, preventing the actuation of the
faults F0074 (earth fault) or F0070 (output overcurrent or short-circuit).
ATTENTION!
When the data of the output current as a function of the switching frequency are different from
the standard, refer to table B.4 available in Appendix B – Technical Specifications of the CFW500
user's manual.