Re: Stepper Motor Power supply Sizing.

Hi Peter,

I have seen 8-wire motor nameplate ratings for the exact same motor
with three different ratings:
bipolar parallel: 3.5A
bipolar series: 1.75A
unipolar 2.5A

Does your motor specify which mode the 4A is related to?

Jeff
http://www.xylotex.com

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Peter Homann"
<peter.homann@a...> wrote:

> Hi,
>
> I have been looking at Marriss's White paper on Power Supply's

where it

> states that the current requirements for a stepper motor is 2/3 of

the

> motors rated current in Parallel and 1/3 when in series.
>
> So, If I have a 4ohm, 4A/phase 8 wire stepper and I wire it in

parallel, is

> the current requirements for the motor 4*2/3 = 2.66A or is it

2*2.66 =

> 5.333A as the motor has 2 phases.
>
> Thanks,
>
>
> Peter Homann
> mailto:Peter.Homann@a...
> Adacel Technologies Limited,
> 250 Bay St, BRIGHTON, 3186, AUSTRALIA
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