WEG CFW501 V1.8X, Руководство по программированию, Страница: 57 / 192

Identification of the Inverter Model and Accessories
CFW501 | 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: Identification of the CFW501 models for
frames A, B, C, D and E on page 6-2 .
P0296 – Power Supply Rated Voltage
Adjustable
Range:
0 = 200 - 240 V
1 = 380 - 480 V
2 = 500 - 600 V
Factory
Setting:
According
to inverter
model
Properties: ro
Access groups
via HMI:
READ
Description:
This parameter presents the inverter rated power supply as shown in Table 6.2: Identification of the CFW501
models for frames A, B, C, D and E on page 6-2 .
P0297 – Switching Frequency
Adjustable
Range:
2500 to 15000 Hz
Factory
Setting:
5000 Hz
Properties:
Access groups
via HMI:
MOTOR
Description:
You can use this parameter to define the inverter IGBT switching frequency.
The inverter switching frequency may be adjusted according to the appliction 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!
Check the output current data considering the switching frequency when it is different from the
default in table B.4 available in annex B - Technical Specifications of the CFW501 user's manual.