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My external device is making noise when installed next to an Altivar Process Drive. What could be the cause?

Issue:
My external device is making noise when installed next to an Altivar Process Drive. What could be the cause?

Product Line:
Altivar Process Drive

Environment:
All serial numbers for Altivar Process Drive (ATV630, ATV930, ATV650, ATV950, ATV660, ATV960, ATV680, ATV980)

Cause:
Related to noise issues

Resolution:
Noise is typically not generated by the drive but in some cases here are a few things check:
[Complete settings] [Motor parameters] [Switching frequency]
- Switching Frequency [SFr] (Increasing may reduce noise but increase heat generated by the drive)
- Noise Reduction [nrd] 

NOTE: In the event of excessive temperature rise, the drive automatically reduces the switching frequency
and reset it once the temperature returns to normal.
In case of high-speed motor, it is advised to increase the PWM frequency [Switching frequency] SFr at
8, 12 kHz or 16 kHz


- Check for possible electrical interference from nearby devices
- Check installation cables
  Recommend the use of proper VFD or shielded cables in separate conduits. Refer to Installation Manual for Guide Lines.
 
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