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FAQ
Influence on external measurement device
Sometimes a tan delta measuring device approximately 5 m apart from the inverter becomes unavailable for measurement.
It is an old device with no protection. Is this caused by noise or harmonics?
What countermeasure is effective?
It is an old device with no protection. Is this caused by noise or harmonics?
What countermeasure is effective?
- Category :
Answer
It is considered that malfunction of the measurement device is due to noise.
Check the noise propagation route since the countermeasure depends on it.
Some countermeasure against noise are as follows:
- Change the inverter's carrier frequency to a lower value.
- Keep the inverter, power cable, and sensor signal cable apart from each other as far as possible
- Install noise filters
- Use shielded cables
- Use shielding plates
Check the noise propagation route since the countermeasure depends on it.
Some countermeasure against noise are as follows:
- Change the inverter's carrier frequency to a lower value.
- Keep the inverter, power cable, and sensor signal cable apart from each other as far as possible
- Install noise filters
- Use shielded cables
- Use shielding plates
- Product Name
- Inverter, magnet motor drive
- Series
- Others