Re: +/- 15V Supply

Hi,

That should work just fine. You'll get 36VDC max at 15A. Make sure
the power supply case does not connect to your GND terminal.

Mariss

--- In CAD_CAM_EDM_DRO@egroups.com, John Murphy <john@w...> wrote:
>
> I'm about to finish up my first CNC project (a grizzly mill). I've
been
> stalled the last few weeks trying to find/setup a suitable
> power supply (I'm using 24V servos).
>
> This may be over kill in some respects, and not quite as much
current
> as I'd like in other respects (I'm planning on building an
unregulated
> type supply soon) but I've picked up a supply that might work, and
> wanted to
> find out if the gurus on this list had any advice using it.
>
> It's a rack mount transistor devices military supply, with
> a variable 15 amp + output and a variable 15 amp minus output
> (The outputs are variable from 0-18V and can be current limited).
>
> The supply seems to work great, but obviously I need somewhere
between
> 24 and 30 volts. Can I feed the -15 volt side of the supply to my
> G320's negative supply terminal and the and the +15 volt terminal
to the
> +voltage side of my Geckodrives?
>
> I'm not paralleling this with any other supplies for motor drives
> or anything special. Since there is 30 volts potential between
> those terminals, I'd think that I could use the + & - terminals and
> leave the "0" terminal alone.
>
> The supply is around 75 pounds (heavy!) with a huge transformer,
four
> giant caps,
> a bunch of heat-sinked SCR's and some circuitry.
>
> The only "hitch" I could guess might be some kind of grounding issue
> with the AC
> grounds or something (Obviously the computer and the motor power
are on
> the same
> AC circuit).
>
> I'm not an EE, so I wanted to pose the scenario before I blew up my
> drives...
>
> Thanks,
>
> murph