I've seen posts here like, "Those are 3V motors and ought to work fine with ~brandname~ controller."
The PowerMaxII steppers I have don't spec a voltage rating. Rather, they give "rated current" and a phase resistance.
However, depending on how they're wired, the "Voltage ratings" (which I'd describe to be "the voltage needed to get the phase current up to the rated current") are different, not what I expected.
For example:
Bipolar parallel 5.6A rated current into 0.23ohm ph resistance = 1.288V
Bipolar series 2.8A into 0.92ohm = 2.576V
Unipolar 4.0A into 0.46A = 1.84V.
ratings
Based on what's been written here, are these (approx.) "2V motors?" Or are they 1V, 2V, or 2.5V motors depending on how connected?