Re: [CAD_CAM_EDM_DRO] serial cable current capabilities

Hi Scot,

I'm using DB15's (I had a lot of 'em), and they work fine. Trouble is
getting 18 ga. wire into the pins! You can also use a PAIR of wires and
pins per lead. I have quite a few motors wired with DB15's. Even
Unipolar motors, where I use an additional pair of pins for the "common"
(2nd common for 6 wire motors). The common pins are ignored for a
bipolar motor. I was even thinking of adding the current selection
resistor to the connector as well. BUT, I'd caution that you provide a
"minimum current" resistor at the Gecko. Otherwise, well you know what
will happen!

Alan KM6VV


Scot Rogers wrote:

>
> shoutout to all,
>
> I'm finishing up my first controller/powersupply and I had some questions.
> I'm running gecko's to motors that can pull 3.3 amps. I have a bunch of
> open spaces on my control enclosure that are made for a standard 9 pin
> serial connection coupler. My question is this. Could I use standard
> serial connections and ribbon cable to match to connect the geckos to the
> motors? Or would the current burn up the wire? And If I used a larger
> gauge wire to carry the current, would the connectors be able to handle the
> amperage?
>
> The reason that I want to use the 9 pin connection is so I can have some
> versitility of which kinds of motors that I can run. Concievably I could
> run any 4 6 or 8 lead motors if I limit the current correctly right? Then
> all I would have to do is get the pinout straight on the serial cables for
> each motor connector. I could even put a current selector switch on the box
> with the right limitors and just switch motors and current when I switch the
> machines right?
>
> Scot
>
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