How to solve the problem that the frequency converter interferes with 485 communication of other ins
2022-02-28 16:45:01
1. Twisted pair shielded wires are used for communication lines, and the shielding layer is grounded.
2. Use RS485 isolator, RS485 repeater, etc.
3. Try to keep the distance between the instrument and the frequency converter as far as possible.
4. It is better to add isolation between the power supply of frequency converter and instrument.