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Got it fixed. The tailstock (that I never used) was a hair out of position and it was interlocking the automatic mode.

Another update.
I don't seem to be getting a lot of traction with this problem, but I'm going to keep updating it in case it is of use to someone else in the future.

Everything that I can find...

Update:
I have more time to look at it today.
I have verified that *everything* I can think of works except for automatic mode. I can zero it, jog it, change tools, and run the spindle.

I...

This ancient SL-15 with Fanuc F10T9B controller just stopped working. It was running fine when I left yesterday, but on the night shift it just... stopped, apparently.
To be clear, I'm not a CNC...