How to Troubleshoot VSD Motor Noise
Quick Answer
Check the carrier frequency, check for harmonics, and check the motor bearings.
How to troubleshoot VSD Motor Noise
VSDs can cause motor noise and vibration. This guide covers troubleshooting VSD motor noise.
Step-by-Step Fix
- Check the VSD carrier frequency - increase it to reduce noise.
- Check for harmonics with a power quality analyser.
- Check the motor bearings for wear.
- Check the motor mounting for resonance.
- Install an output filter if needed.
Common Error Codes
| Code | Meaning | Resolution |
|---|---|---|
| Motor noisy | Carrier frequency or harmonics | Adjust carrier frequency or add filter. |
| Motor vibrating | Mechanical issue | Check bearings and mounting. |
Frequently Asked Questions
Why do VSDs cause motor noise?
The high-frequency switching can cause audible noise.
How do I reduce VSD motor noise?
Adjust the carrier frequency or add an output filter.