"Bob La Londe" wrote in news:menhij$v46$ snipped-for-privacy@dont-email.me:
Well, yeah, the trick is making the variable frequency source, which gets a tad difficult once you start talking really big motors (not that the one in question is big).
I'm assuming, since the OP mentioned the motor being variable speed, that it is so marked. That's why I said it's not a normal motor.
John