[scadvice]

Check the leg your controller is running off of. Years back I used a Phase II generator and by bad luck had hooked the generated leg to the computer. It turned out that sometimes the machine would stop and shut down if I had the spindle on high range and moved the table in rapid (G00) at the same time.
What was happening was the generated legs voltage would drop so low (less than 90 volts) as to shut the computer down. I switched the phase generated leg off cpu and all was good again. The cpu runs off of a 5 volt transformer and it was a wrong voltage, wrong voltage out thing.
I would put in standard 3 phase before I would pay money for any other solution. Much better off in the long run. Steve