You can find several wiring diagrams for different VFDs and Speed Controllers in the Product Download section of the C11G: https://www.cnc4pc.com/c11g-multifunction-cnc-board.html#pattachments. Please choose one that may match the VFD you have. You can also find several installers and configuration files for different control software. If you have additional questions, do not hesitate in opening a ticket in our website and we will give you a hand setting this up: https://www.cnc4pc.com/contact/