FAQ
FAQAbout Products
- FAQ > Drive Products > Inverters-FREQROL > FREQROL-E500 > Noise from motor at low speed
FAQ
- Inquiries
Noise from motor at low speed
A high tone noise is heard from the motor when it starts and accelerates to the middle speed.
What are the possible cause and countermeasure?
What are the possible cause and countermeasure?
- Category :
Answer
It is considered to be caused by inverter PWM control.
It can be suppressed by raising the PWM carrier frequency (Pr.72), but the entire noise and leakage current increase.
Adjust the PWM carrier frequency while considering the noise and leakage current.
It can be suppressed by raising the PWM carrier frequency (Pr.72), but the entire noise and leakage current increase.
Adjust the PWM carrier frequency while considering the noise and leakage current.
- Product Name
- Inverter, magnet motor drive
- Product Category
- Inverter
- Series
- FR-E500
