RE: [CAD_CAM_EDM_DRO] Question, encoder compatibility w/Gecko 340

There's another problem with renco encoder. Many of them draw 75ma . The
max that the G320/G340 can handle is 50ma. So he would also have to use
an external power supply
To run them

-----Original Message-----
From: Jon Elson [mailto:elson@...]
Sent: Saturday, November 15, 2003 8:57 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: Re: [CAD_CAM_EDM_DRO] Question, encoder compatibility w/Gecko
340




Jon Anderson wrote:

>I'm looking at some Renco encoders for eventual use with some Gecko 340

>amps. The output is listed as "5 volt differential-line-driver outputs"

>and I'm not totally sure this is what the Gecko driver needs. Sounds
>like it, but I don't like to make assumptions with expensive
>electronics...
>
>

The Renco enocders send too much information for a Gecko 320/340. The
Geckos only accept "single ended" signals (A and B). The Renco encoders
with differential output send A and A/, B and B/, where the "/"
indicates an inverted signal. Just hook the A and B signals to the
Gecko, and see how it works. If you have encoder noise problems, then
you might want to get a diff-single ended converter board from US
Digital (or other sources) and convert the signal right at the Gecko.

Jon

>
>

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