3.14. Main Menu - Special Functions -Group 14
3.14.1. 14-** Special Functions
Parameter group for configuring special frequency converter functions.
3.14.2. Inverter Switching 14-0*
Parameters for configuring the inverter switching.
14-00 Switching Pattern
Option: Function:
Select the switching pattern: 60° AVM or SFAVM.
[0]
*
60 AVM
[1] SFAVM
14-01 Switching Frequency
Option: Function:
[0*] 1.0 kHz
[1*] 1.5 kHz
[2] 2.0 kHz
[3] 2.5 kHz
[4] 3.0 kHz
[5] 3.5 kHz
[6] 4.0 kHz
[7] 5.0 kHz
[8] 6.0 kHz
[9] 7.0 kHz
[10] 8.0 kHz
[11] 10.0 kHz
[12*] 12.0 kHz
[13*] 14.0 kHz
[14*] 16.0 kHz
Select the inverter switching frequency. Changing the switching frequency can help to reduce acoustic noise
from the motor.
*) Size dependent.
NB!
The output frequency value of the frequency converter must never exceed 1/10 of the switch-
ing frequency. When the motor is running, adjust the switching frequency in par. 14-01 until
the motor is as noiseless as possible. See also par. 14-00 and the section
Derating
.
NB!
Switching frequencies higher than 5.0 kHz lead to automatic derating of the maximum output
of the frequency converter.
3. Parameter Description VLT
®
HVAC Drive Programming Guide
124
MG.11.C5.02 - VLT
®
is a registered Danfoss trademark
3