Issue:
What could the cause my external device to make a lot of noise, when installed next to an Altivar Process Drive?
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:
First is grounding. Most all EMI noise problems are result of improper grounding.
[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.
What could the cause my external device to make a lot of noise, when installed next to an Altivar Process Drive?
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:
First is grounding. Most all EMI noise problems are result of improper grounding.
[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.
