PWM clock frequency
Generation of the output voltage for the AX8000 servo drive is based on a PWM clock frequency of 8 kHz. In order to reach an acceptable compromise between power loss and requirements for the insulation system of the motor, the AX8000 operates with a maximum rate of voltage rise (du / dt) of 5 kV per µs.
Stages and show applications often require almost silent operation of the servo drive and motor. For lower noise emission, the PWM clock frequency can be increased from 8 kHz to 16 kHz. The increased frequency can only be perceived with difficulty by the human ear. The output power of the output stage must be reduced by a factor of 2 at an increased clock frequency.
You can set the following values:
Value | Description |
|---|---|
0: PWM 8 kHz; default value | PWM clock frequency = 8 kHz |
1: PWM 16 kHz | PWM clock frequency = 16 kHz |