I think I have interference / EMI problems between the connection of a VFD and an arduino. I enclose a scheme of the connection circuit.
The problem is that after a while, sometimes days, the digital inputs of the inverter are activated. This happened to me with different brands of drives (LG, Siemens, Weg, etc.)
The connection cables that I use are meshed and have a ground connection.
I want to add an RC filter to the circuit but I do not know if it is convenient and which is the best option to avoid interference.
Thank you very much for the help