Re: [CAD_CAM_EDM_DRO] I just bought a robot controller

--- Eric Keller <keller137@...> wrote:

> The controller I got with my P-50 Process (welding)
> robot says it wants
> 40 amps of 440v 3 phase (ok, it isn't 440v, but I
> think you know what I
> mean).
> So when I saw a robot controller sitting outside of
> Penn State Surplus and
> Salvage
> with a 110 cord hanging out the back, and better
> yet, 110v written on the
> back,
> I bought it. Then I picked it up. Recommend the
> reverse order, try to pick
> up
> first, then buy.
>
> The nice thing about it is that once you take the
> cover off, it was two
> pieces,
> an outdated computer and six never go out of date
> H-bridges. The bad thing
> is
> that it is H-bridges, not a chopper amp, and the
> chopper part is up in the
> controller.
> It has a monster unregulated supply. The H-bridges
> have 5 inputs, A,B,C,D
> and EN.
> I assume A,B,C,and D are the legs of the H-bridge,
> and EN is Japanese for
> Enable.
>
> I have 2 questions:
> 1 -- does it make sense to have all 4 transistors
> independently driven?
> 2 -- is it likely that if I turn it on to check the
> power supply that I will
> smoke a H-bridge? There is a bleeder resistor
> across the main filter
> cap, so that part is relatively safe.
>
> Regards,
> Eric "the robots can't hear you scream" Keller,
> or maybe it's Eric "Joe Vicars is selling my
> Bridgeport on Ebay piece by
> piece
> and there ain't nothing I can do about it" Keller
>
>
>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES:
> http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
>
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