In mine the circuit board is inside the VFD and a second USB plus goes to the control computer.
Type: Posts; User: tlempicke
In mine the circuit board is inside the VFD and a second USB plus goes to the control computer.
If you have spindle control of speed from the SB3 program you have to have a small circuit board installed in your VFD. That circuit board has a USB plug that plugs into the control computer.