How does transducer have interference to pressure sensor?
Is it shielded wire? The middle instrument is OK
First, to do the grounding of frequency converter, the frequency converter should adopt single point grounding, it is better to do the grounding with short and thick line;Second, the sensor signal line, it is better to use two feet shielding line, and shielding the cable clamp with the ground, you can try a single ended grounding, you can also try double ended grounding;Third, in the sensor power supply with power filter, filter magnetic ring, or isolation transformer and so on isolation, if not OK, then that can only see fourth.Fourth, the harmonic produced by the inverter is suppressed, and the optional filtering products are: inverter input filter, frequency converter output filter, frequency converter input reactor, frequency converter output reactor, etc..
Interference treatment method of transducer to pressure sensor:1, the frequency converter to adopt a single point grounding, it is best to short and thick lines for grounding;2, the sensor signal line, using two feet shielded wire, and the shielding layer with a cable clamp for grounding.3, in the sensor power supply with power filter, filter magnetic ring, or isolation transformer, etc isolation.4, harmonic suppression of the inverter, the optional filtering products are: inverter input filter, inverter output filter, frequency converter input reactor, inverter output reactor.
