RE: [CAD_CAM_EDM_DRO] Re: Choosing a Power Supply?

Paul:

From reading the group, I have gotten the idea that you should design th
epower supply to support about 2/3 of max current per motor, so you would be
able to use a 4A supply in your case. This might make it easier to build(or
not; if you find the 6A components for around the same price, you might as
well go for it).

You might want to try asking Mariss directly what hookup he recommends for
your motors, and that will determine the voltage and current ratings you
should use. I know when I did that, his answer changed my plans
considerably, as he recommended a different wiring for my 8-wire motors, and
a lower max current setting than I had planned on.

Andy Wander
Verrex Corporation


-----Original Message-----
From: shyningnight@... [mailto:shyningnight@...]
Sent: Monday, May 17, 2004 11:48 AM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] Re: Choosing a Power Supply?

That's exactly where I got my assumptions that I posted...
I was looking for anything I might have missed....
Thanks!
Paul F.

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Andy Wander <awander@v...> wrote:
> Download the G201 manual, and also the "Stepper Motor White paper(full
> version)" from the Geckodrive web site, and give them a quick read. This
> should answer most of your questions.
>
> Andy Wander
> Verrex Corporation
>
>
> -----Original Message-----
> From: shyningnight@y... [mailto:shyningnight@y...]
> Sent: Sunday, May 16, 2004 2:57 PM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] Choosing a Power Supply?
>
> Having more or less settled on using a Gecko drive (probably the 201) for
my
> stepper
> retrofit....
>
> I'm now thinking that at some point I'll need a power supply!
>
> I'm a bit "slow" when it comes to electricity.... that is, I'm ignorant...
>
> What I THINK I need;
> A power supply that will supply up to 70 VDC (the maximum that the Gecko
201
> will
> handle, as I read the specs), at 6Amps (I have 3 steppers rated for 2Amp
per
> phase...
> 2amps times thee motors; 6 Amps?).
>
> Given this, should I be looking for a 60-70VDC supply at 7Amps (a bit of
> headroom for
> the motors)???
>
> There are currently 1250 "Power Supplies" in the Business and Industrial
> section of eBay...
> you'd think at least ONE of them would be more or less what I'm looking
for,
> wouldn't you?
>
> Are there any other considerations when looking for a Power Supply that
I"m
> not aware of?
>
> I don't have the money to buy one immediately... I want to buy the Gecko's
> first, then in
> another month or two, I'll get the power supply about the time I have a
good
> start on the
> mechanicals of the retrofit...
> I have a long way yet to go!
>
> Any advice is appreciated!
> Paul F.
>
>
>
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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
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