ok, what are you using as your controller, I assume since you are going to run analog it is not mach3. I suggest you se up and tune your motors, pick one and only one, and try and get a decent tune on it set your scale with GD Tool in your drive to 50/50, with just your usb cable connected follow the tuning sequence play with your pid settings and plot out your results to get the best results in torque mode, then go to the command section and see if you are able to tell it to move and get the proper response. if you are turning the motor shaft and the encoder count does not change with the high voltage off and logged in to the drive, for what ever reason it is not getting the signal. I have only used these drives to run ac servos, so my dc experience is not with zsd drives.