Re: [CAD_CAM_EDM_DRO] Stepper Calculation Help?

cnc@... wrote:

> Hello
>
> I have purchased some Slo-Syn Stepper motors rated at 5.1v 1.3A,
> 110 oz/in.
> Type = M091-FC-315D
> Spec = B-1878-7853-C
> Class B Insul
> Steps = 200
>
> This is all the info I have on this motor!
>
> I have also purchase AlZanti 4 phase unipolar driver PVP134

If these are 4 wire motors, you have a problem!

> The diagram shows load resistors to prevent the coil winding over
> heating.
> The formular:
>
> R = +V motor - rated winding voltage
> --------------------------------
> rated winding current
>
> Question :
> Is (rated winding voltage) the voltage of the stepper motor ie 5.1V?

Yes.

> IS (+V motor) the input voltage from the power supply?

Yes.

> Is (rated winding current) the stepper motor current ie 1.3A?

Yes.

Jon