Not sure I would go for 24V.
Seems to work out to the same power output in regular IRP with 6 in series for 24V, as it does for 12V with 3 in series.
The cut in is practically the same (with 6 in series for 24V, 3 in series for 12V).
The chart I posted above... the motor sticker says 208-220V, 2.8A, and that is in Wye (Star).
The chart shows a peak of about 4A, split between 3 phases is 1.35A, so it does not look possible to smoke the coils when used as a PMA. When the phases are wired for half the open voltage, the amps double, but the max output amps in each COIL stay the same.
I know for a fact ECMs can smoke the coils when used as GE intended... eBay is full of them, which I also know for a fact.
Just to get people thinking and increase the value of my aspirin company stocks - I have thought about IRP for some coils, and Wye for others. Could do a bit of hardwired power matching.
My personal luck with AC servo motors has not been so great. Brakes that can not easily be removed, stuff that has been dis/re-assembled (which is a very bad idea), severely inductance limited, etc. I never had on anything near 400V 16.5A.
And the average guy is stuck with whatever they do. Not practical to do any internal reconnecting.
G-