I consider this a success.
>>That woudl seem to prove your driver is fine..
But what is odd to me now is that when I initiate a step I see a differential in voltage on the input side of the micro step driver, but on the output side of the driver I see no change at all; when initiated by the Mach4 GUI. I do see DRO change, so Darwin is sending the signal, but I see no evidence on the output side of the micro step driver. I am leaning towards a replacement on the micro step driver side.
>> How much change do you see? It coudl be a charge pump setting is killing the ground or something.. Hard to say..but iot sounds like the driver is fine.
On another note however, I am looking at the spindle setup through Darwin. I'm setting it up on the relay side of the break out board and I am using the DCM and FOR signals from the VFD. In my breakout board the pin that should be doing the talking to the spindle is pin 16. So I have all of this setup and enabled in Darwin as well as setup on the Mach settings output tab. I also have the freq range set on the Darwin Configuration screen for a range 0 to 400 Hz per specification of the spindle and vfd settings. When I click start I see the DRO go to the minimum setting that I supplied for the signal. The status bar in the bottom says Signal 5 set to 1; however, the relay fails to close the connection to initiate the spindle from turning on.
That too coudl be charge pump...
Art
Maybe I should just get rid of all this and take up basketweaving???