I traced out the RS-232 and the path is as most say, and I have tried several times (i.e., x step 2, x dir 3, y step 4, y dir 5, z step 6, z dir 7). Pin 15 has a grey wire that goes to the 2-pin molex plug on the cabinet and the other pin of the 2 pin molex plug goes to the RS232 ground. No where do I see a ground between the gecko drives and the RS-232 port. The port marked "Common" on the Gecko drives are conneted in parallel and exit through the 2 pin (but only 1 pin present) molex plug labled "5 volts." The 4 pin molex plug goes to the RS-232 ports 10, 12, and 13 and nowhere else. The other molex plugs are empty.
Is there anything I should be looking at to trouble shoot the system from here (e.g., motor wiring or Gecko setting)?
Thanks