Learning Advanced Features
[Example of auto restart with a setting of 2]
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)
* PWM: Pulse width modulation
Operational Noise Setting Details
Adjust motor operational noise by changing carrier frequency settings.
Power transistors (IGBT) in the inverter generate and supply high frequency
switching voltage to the motor. The switching speed in this process refers to
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.
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