I was wondering which method would be better to control my VFD for my mill. I have a Teco 7300 CV.

I'm looking at using either analog 10V, modbus RS232 or RS485. I currently have the RS232 cable and if modbus is a better way to control it is RS232 or RS485 better? I can pick up the RS485 cable for around $20.

My analog signal if that is a better route would be coming from a Kflop/Kanalog board.

I allways prefer modbus. Just an oppinion...

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