[timo2le]

I bought a '97 vmc 15 at an auction. Came from the factory with 4th axis wiring & amps. I bought a VH65 at the same auction. It was sitting on a 4020. We verified that it worked on the 4020. On my VMC 15, with the dummy plug installed the AMC -AMP-0014, shows a red LED. When I connect the VH65 to the VMC15 I get an error #3 axis overload. I have had the 4th running (continuous rotation/without control) by disconnecting some wires. So, based on testing the 4th at the auction, and getting it to run out of control, I feel like the motor is OK.

Last night I did an inventory of the cards as they are installed in the card cage. Slot 13 is designated as the A axis card. It has a 1010-5D card installed. (all axis cards are 1010-5D) and the EPROMs are labled for the A-axis. (all other cards have the EPROMs labled for the appropriate axis).

I compared jumper socket wiring to the manual for all cards. What I found on the A axis card is: the 12 - 5 jumper wire is cut. I found in the manual that this jumper should be cut for other brands of 4th axis, but not for the VH65.

I had to leave my shop, so I didn't get a chance to replace the jumper. I can't wait to get to the shop tonight to replace that jumper an see what happens. What specifically does that jumper do? Does it sound like the root of my problem or do I have deeper control issues?