Here's a few second video of what the machine is doing:
https://www.youtube.com/watch?v=FzzQpWVQLnw
After I've been using my planer for a while and stop it to make an adjustment or switch between planing and jointing I often have an issue re-starting it. It comes almost up to speed and then shuts off. If I let it sit for just a minute or two it will then start normally. It never has this problem on a "cold" start.
It is a three phase machine, power is coming from an American Rotary AD20 rotary phase converter. Voltages are within range (as measured with no load).
Any hints about what might be going on? It's irritating, but I can live with it. I'd rather not do anything that will damage the machine, and of course if it gets worse that's a bigger problem. I did not see this in the first year or so that I had the machine, it's been doing it for a couple months now.