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From: wrb@ccsitn.cb.att.com (Wally Blackburn)
Subject: Re: IBM PC Stepper control
Message-ID: <CxBzs0.2B1@nntpa.cb.att.com>
Keywords: stepper motor IBM control card
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References: <mlehman.781134229@bix.com> <Cx3p3s.8JI@nntpa.cb.att.com> <melillo.781540112@mistral.ere.umontreal.ca>
Date: Sat, 8 Oct 1994 01:50:23 GMT
Lines: 61

In article <melillo.781540112@mistral.ere.umontreal.ca>,
Melillo Marc <melillo@ERE.UMontreal.CA> wrote:
>wrb@ccsitn.cb.att.com (Wally Blackburn) writes:
>
>>In article <mlehman.781134229@bix.com>, mlehman on BIX <mlehman@BIX.com> wrote:
>>>
>>>I need info on a card or cards that will control stepper
>>>motors via an IBM PC. Could use either a devoted card
>>>or cards, or a unit that atttaches to parallel port(s).
>>>Any info would be welcome.
>
>>Check out the file /pub/cookbook/unsorted/pc_stepr.zip on
>>ft.bode.ee.ulaberta.  If you can't ftp, I can uuencode it and send it to
> ^^^^^^^^^^^^^^^^^^^ There's something wrong with this address (unknown host).
>Can you verify it, or send me this file by email. I'm very interested.
>

Sorry, I messed up the address.  It is ftp.ee.ualberta.ca.


>
>>you.  I still have kits for the controller.
>
>>I have recently rewritten the instructions and included a simple parallel
>>port control program in QuickBASIC.  The Turbo C source is still included 
>>also.
>
>
>>A short blurb:
>
>>This is the info file for the Opto-Isolated Stepper Motor Controller.
>>While the info is oriented towards control via a PC parallel port, the
>>controller can really interface to just about anything.
>
>>The controller uses a UCN5804B controller IC from Allegro.  This chip
>>can control motors at up to 35V and 1.25A continuously.  Peaks of up 
>>to 50V and 1.5A can be tolerated according to the data sheet.
>
>>The inputs to the UCN5804B are optically isolated from the control
>>circuitry.  Input control voltages from 3 to 12V are acceptable.
>>Diodes are used to protect the UCN5804B from negative transients from
>>the motor windings.  For efficient low-voltage operation, Schottky 
>>diodes are used.
>
>>-- 
>>   Wally Blackburn		   Clinton-Gore - Socialist Leadership
>>   wrb@ccsitn.cb.att.com		          for the 90s!
>>   Amateur Radio Station AA8DX	   I'm the NRA.
>>   '91 FXR	DoD #1375
>Thank you
>Marc Melillo                     melillo@ere.umontreal.ca
>School of Optometry
>Universite de Montreal
>Montreal, Quebec, Canada


-- 
   Wally Blackburn		   Clinton-Gore - Socialist Leadership
   wrb@ccsitn.cb.att.com		          for the 90s!
   Amateur Radio Station AA8DX	   I'm the NRA.
   '91 FXR	DoD #1375
