[mcphill]

Finally got the VFD in (it was backordered). I have the motor installed and running from the front panel of the VFD, but hit a snafu when trying to drive it from the Adruino. The Arduino is a 5v system, and the VFD wants 24v logic, so I have some optocouplers ordered to step up the signal. I am able to update the frequency drive on the VFD from the Mikini and from MACH3, but can't get the start/stop or fwd/rev signals without the 24V signals. There is an issue with the frequency, as when I enter S5000 I only get about 4.3 volts on the Arduino and 7.7 volts on the VFD, so something is not reaching the max speed. I'll have to look in to that further once I get the 24v signal issue figured out.

Here is the current schematic: