WEG CFW08 Vector inverter User Manual page 85

DETAILED PARAMETER DESCRIPTION
Parameter
(1)
P219
Switching
Frequency
Reduction
Point
(1)
This parameter can be changed only with the inverter disabled (motor stopped).
84
Range
[Factory Setting]
Unit Description / Notes
Please consider still the following:
While the keypad (HMI) is running the Copy Function (read or write
procedures), you can not operate it.
0.00...25.00Hz
Defines the point where the switching frequency is modified
[ 6.00Hz ]
automatically to 2.5kHz.
0.01Hz
This improves considerably the measurement of the output current
at low frequencies, and consequently improves the inverter
performance, mainly when in vector control mode (P202=2).
It is recommended to set P219 according to the switching frequency
as shown below:
In application where it is not possible to operate the inverter at
2.5kHz (for instance, due to acoustic noise), set P219=0.00.
-If the inverters A and B are driving different motors, check the
motor parameters (P399 ... P409) related to inverter B.
-To copy the parameter content of the inverter A to other
inverter(s), repeat steps 4 to 6 above.
INVERTER
A
Parameters
INV→keypad
(copy)
P215 = 1
Press
EEPROM
Keypad
Figure 6.16 - Copying the parameters from the inverter A to the
inverter B, by using the Copy Function and the
HMI-CFW08-RS keypad
NOTE!
The copy function is only available when the inverters are of the
same model (voltage and current) and when compatible software
versions are installed. The sofware version is considered
compatible when the digits x and y (Vx.yz) are equal. If they are
different, E10 will be displayed and the parameters will not be
loaded to the destination inverter.
P297 (f )
sw
4 (5kHz)
6 (10kHz)
7 (15kHz)
INVERTER
B
Parameters
HMI→keypad
EEPROM
Keypad
Recommended P219
6.00Hz
12.00Hz
18.00Hz
(paste)
P215 = 2
Press