After you manually home it with the rotary connected, you can only move the rotary one direction… if you try the other direction it will rotate out of the work area…
The work area is the same no matter if there is a rotary or just the normal table… there is no continuous rotation available with a rotary… it is just the Y axes wrapped around a cylinder…
If the rotary is at 0, 0, you can’t move it in a negative direction… the move window will show you which way you are attempting to move it… if down didn’t work try the up direction on the rotary.
I’d also set it for user origin, not current position… don’t forget to use the set origin button in the move window… after all the other positioning is accomplished.