Hey Mike, we were facing a similar issue. The E002 error you are seeing is caused by the spindle stalling out. We started seeing the issue during drilling operations.
If you watch the controller during the cut you’ll see the “fault” light illuminate which again we’ve learned is the Spindle is being over loaded and close to stalling. When you “fault” too long the spindle shuts down.
Without more data from your cut, I’ll say make sure your Spindle Speed is 19,000 or higher. If you go too much lower you are out of the power band of the spindle and it stalls easier. Try ramping into your cuts using a helix lead in for an adaptive. Most of the bits we use are not designed for plunging. This is when the Spindle is most likely to stall. Also make sure you are using a quality endmill. The sharper the endmill the easier time the Spindle has turning it.
If you can post what material you were cutting, the bit you were using and your speeds and feeds others might be able to help more. Also, what program you are using for CAM? That would be helpful too.
Lastly, when the Spindle stops the bit is likely breaking. If you feel like you lost your “zero” I can help you get it back so your part isn’t ruined as long as you have at least one hole to reference from.