Re: Gecko current limit resistor equation

Thanks, Bob.

-Rick L.

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Robert Campbell" <bob@c...>
wrote:

>
> Rick,
>
> You do need a resistor. Something around 195K.
>
> With no resistor the Gecko will try and drive the stepper motors

at 7 amps.

>
> Bob Campbell
> Bob Campbell Designs
> www.Campbelldesigns.com
> Mach 2/3 breakout boards
> Relay boards
> Spindle Speed boards
> Stepper motors
> Plasma Torch Height control
>
> ----- Original Message -----
> From: "rllalonde2000" <alalonde@s...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Saturday, January 21, 2006 5:31 PM
> Subject: [CAD_CAM_EDM_DRO] Re: Gecko current limit resistor

equation

>
>
> > -Ron, Thanks for the input. Then I don't need a resistor?
> >
> > -Rick L.
> >
> > -- In CAD_CAM_EDM_DRO@yahoogroups.com, Ron Kline <ronkline@a...>
> > wrote:
> >>
> >> I know some of the "electronic types" will explain this for you
> > but I'm
> >> running at least a dozen of these things and the current set
> > resistor is
> >> no big thing , the sizes are printed on top of the drive when

you

> > get it
> >> , a 5.5 would be smaller than the value for a 5 A and larger

than

> > the
> >> value for a 6A.
> >> I have not found it to be all that critical .
> >>
> >> Ron
> >>
> >> rllalonde2000 wrote:
> >>
> >> >Can anyone help me understand the equation given on the Gecko
> > website
> >> >for the G201 current limit resistor? I'm a self-confessed math
> > moron
> >> >and can't make heads or tails of it. The steppers are 5.5A
> >> >
> >> >Thanks in advance,
> >> >
> >> >Rick L.
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >Addresses:
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> >> >
> >> >OFF Topic POSTS: General Machining
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> >> >
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members

> > are there, for OT subjects, that are not allowed on the CCED

list.

> >> >
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> >>
> >> --
> >> Ron Kline
> >>
> >> American Precision Ceramics
> >> Central Ky.
> >>
> >
> >
> >
> >
> >
> >
> >
> > Addresses:
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wanliker@a...,

> > timg@k...
> > Moderator: pentam@c... indigo_red@q... davemucha@j...
> > [Moderators]
> > URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
> >
> > OFF Topic POSTS: General Machining
> > If you wish to post on unlimited OT subjects goto:
> > aol://5863:126/rec.crafts.metalworking or go thru Google.com to

reach it

> > if you have trouble.
> > http://www.metalworking.com/news_servers.html
> >
> > http://groups.yahoo.com/group/jobshophomeshop I consider this

to be a

> > sister site to the CCED group, as many of the same members are

there, for

> > OT subjects, that are not allowed on the CCED list.
> >
> > NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY

POSTING THEM.

> > DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> > bill
> > List Mom
> > List Owner
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
>