New, connected, and future ready.Are you ready?
Browse our catalogue of over 200 FREE e-learning courses.Start learning today
Access tailored services, 24/7 self-service and expert help. Anywhere, anytime, any project.Discover now
Receive all the latest updates, news, and offers via Twitter.Follow us on Twitter
Schneider Electric United Kingdom Website×
Setting the chopping frequency reduces the noise generated by the motor for all applications requiring a low noise level.
This parameter can be set between 1 and 16 kHz.
To minimize acoustic noise, we recommend increasing the switching frequency:
Reminder for ATV11, ATV31, ATV61 and ATV71
The switching frequency, factory-set at 2.5 or 4 kHz depending on the drive rating, is modulated randomly around these frequencies to avoid resonance phenomena.
This function can be inhibited if it results in instability.