Hood,
You're just the guy I hoped would respond! I've read quite a few of your posts. Thanks for your response!
I haven't been able to find a manual for the cpcr mr 52, but I have found a cpcr mr 01C - 07c. ALso, Foothills Machinery out of Denver contacted me today to let me know they found electrical schematics for the mc500v. I'll be honest, I don't have the background to fully understand these wiring diagrams. There are a few things I can pick up, but I need to learn a bit more before I can figure out where to wire step and direction inputs and encoder outputs. In the attached image bellow, the wires are there and numbered, but not labeled in great detail. I'm assuming PC stands for pulse counter. As for T.G. stands for, not really sure. Also, the diagram depicts connections between the 3000g controller and X,Y and Z axis motors. I hope they mean X,Y and Z servopacks, because the controller will wire up to the servopacks alone. (step, dir and encoders).
This retrofit i my first experience with servo controlled systems, so If I am missing something, feel free to mention it. Thanks!