So, what I'm seeing here is that above 1000 rpm, the drive is setting a higher rpm than the voltage applied. From mach3 the applied voltage to the drive is consistently lower the it should be. Below 1000 rpm, both the drive and the signal from mach 3 are lower than expected, Below 500 rpm it all goes to hell, which is why the motor has no torque. More tests to come, I'm going to break the circuit between the jamen motion board and the breakout board and inject my voltage there, to see if the breakout board is playing with the voltage. I suspect it is, I can see speed adjust written on the board, but no adjustment screw is visible. It may be underneath the board.