Operational Noise Settings (Carrier Frequency Settings) - LSIS LSLV-S100 Manual

Learning Advanced Features
If the auto restart number is set, be careful when the inverter resets from a fault trip. The motor
may automatically start to rotate.
5.17 Operational Noise Settings (carrier frequency
settings)
Group Code
Carrier
04
Frequency
Cn
05 Switching Mode
* PWM: Pulse width modulation
Operational Noise Setting Details
Code
Adjust motor operational noise by changing carrier frequency settings.
Power transistors (IGBT) in the inverter generate and supply high frequency
Cn.04 Carrier switching voltage to the motor. The switching speed in this process refers to
Freq the carrier frequency. If the carrier frequency is set high, it reduces
operational noise from the motor, and if the carrier frequency is set low, it
increases operational noise from the motor.
216
[Example of auto restart with a setting of 2]
Name LCD Display
Carrier Freq
PWM* Mode
Parameter Setting
3.0
Normal
0
PWM
Description
Setting
Unit
Range
1.0–15.0 kHz
0–1 -