power supply for nema17 stepper motor?

[yewufakou3 0]

Hi,

I have the following motor:

https://www.oyostepper.com/goods-64-Nema-17-Stepper-Motor-Bipolar-09-deg-46Ncm-651ozin-2A-28V-42x42x48mm-4-Wires.html

 

And the following driver:
https://www.oyostepper.com/goods-111-Digital-Stepper-Driver-10-42A-20-50VDC-for-Nema-17-23-24-Stepper-Motor.html

 

I've red a lot about stepper, not sure I understood everything, but it seems that I can power this motor using any voltage I want and the actual voltage limit comes from the driver.

The driver works with 8 - 45 volts.

What I don't understand is what is the minimum and the optimal power supply needed ?
Is a 12v 1A power supply from an old router will power it (without any load) ?
Should I buy 24v power supply ? if so, how much current should it support ? I guess there is no need for more than 2.2A as the driver can't cope with higher current.
And If that is the case, to get the maximum torque should I look for a 45V power supply ?

I'd really appreciate if someone could clarify this things
Thanks