[fyffe555]

OK, I'm confused about these steppers; Powermax II P21NxxC-Lxx hybrid series. what Voltage and current should you be running these at?

I think a few guys are using similar motors here so hopefully somone can tell me whats what. I have the pdf's that relate but the numbers do not add up. Cannot figure out what voltage I'll need and what power supply to build so haven't spun anything yet.

The motors measure 1ohm per phase.

On the label it states 1.75a bipolar series. PDF agrees and further says 3.5a bipolar parallel and 2.5a unipolar.

Label says power Po= 46W, Vs(dc) 65v & 1500rpm Is that 46w total for all phases? 65v doesn't make sense and can they really do 1500rpm? intend using ten tpi so aiming for 600rpm max

What ever, if you take 1.75a, 46W and 65v Ohms Law has a fit and it doesn't make sense, to me at least. If you take 1.75a and 1ohm then thats 1.75Vdc? If you take 46w/4 phases and sqrt(W*ohms) then thats about 1.7v.

So am I right to think that a 12v motor supply, current limited to 1.75a or whatever is going to work without letting out the magic smoke?

thanks

[motomitch1]

It is 1.75amp times the ohms is 1.75 volts X 4 to 25 max is = to
7v to 43.75 max volts. The more volts you run will make better
tork at higher rpm and I would use 3.5a bipolar parallel

[kong]

12v is fine, although you will notice a BIG difference if you can bump it up to 24v with the limiting resistors. All depends on what board you have.