It's been too long, and I never really spent much time on the CNC machines so I can't directly help, but I did find a video that could be related to your problem. It's also something that should be addressed in your manual.
You're very welcome. No, I did not go on to pt 2. I will, probably in the morning. If we can't get it figured out, I may have the phone numbers to reach some former acquaintances who may be able to help. I've been away from it a long time, but know people still at it daily. The 10T is a good control, IMO, and there are workarounds for just about everything. It's just not on all that many machines working in shops these days.
I never cared much for conversational controls, myself. But then, I've only been on a couple of different ones, and they both ran standard G code as well, so that's the mode they were left in most of the time. I think they have a place, it's just my preference.
For anyone who's looked at this post, I figured it out. While turning the ball screw by hand I noticed the drive belt pulley to the motor wasn't turning. There is a, must be safety thrust assembly that disengages pulley from screw. Luckily I had alignment Mark's. Lined them up. Pushed into place. Vualla! EMG went away because signal was met.