well, i couldn't wait any longer and decided to start hooking wires up. I'll give you a step by step progress of my day so all may see what doesn't and what will work.
I started with just 1 driver and followed your (lost tourist's) wiring diagram to a T (minus the opto isolated circuits). The drives just remained in a fault state.
So i decided to step back and hook up only the encoder to the driver which left only step and dir going from the G-rex to the driver. This did not work either. I then hooked up the +5 common on the driver to the +5V in the power section (under the "USB") on the Grex. This still did not work.
At this point, i remembered or reread that the ERR/RES on the driver needs to be hooked to the ECN+ on the driver. This ended up working for one drive.
I then hooked up another driver w/ the same setup, and shared the +5V on the G-rex for both drivers common input. This did not work, both motors would move when jogging only one.
Finally, i hooked up the +5V (right next to the Step output on the G-rex for each axis, which i think is for the encoder?) to the to the common on the driver. This seemed to work.
So, as of now, i have the encoders only going to the drivers, and step, dir, and +5V on the G-rex going to the drivers. i have 2 "fully" functional axis now, but don't think this is the way i will leave the setup.
I hope all that made sense, but i'm in a rush and need to run off.
Brian  |