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- Newsgroups: comp.robotics
- Path: sparky!uunet!elroy.jpl.nasa.gov!ames!pacbell.com!network.ucsd.edu!orion.oac.uci.edu!ttinews!polymath!hollombe
- From: hollombe@polymath.tti.com (The Polymath)
- Subject: Re: Trouble with stepper motor
- Message-ID: <1992Aug18.004644.9134@ttinews.tti.com>
- Keywords: stepper motor
- Sender: usenet@ttinews.tti.com (Usenet Admin)
- Nntp-Posting-Host: polymath.tti.com
- Organization: The Cat Factory
- References: <1992Aug14.214916.4173@colorado.edu>
- Date: Tue, 18 Aug 1992 00:46:44 GMT
- Lines: 21
-
- In article <1992Aug14.214916.4173@colorado.edu> mathis@tigger.cs.Colorado.EDU (Don Mathis) writes:
- }I've got a 4-phase stepper motor that I'm trying to control, by
- }sending it the required sequence of 4-bit patterns (1001, 1010, 0110,
- }0101, repeat), and the motor runs for 2-6 seconds (hundreds of steps)
- }and then it gets confused and just starts wiggling.
- }
- }Has anyone else had this problem?
- }
- }The motor behaves as it would behave if it had gotten out of
- }synchronization with the step commands, but I can't imagine why this
- }would suddenly happen after hundreds of successful steps.
- }
- }Can anyone give me some advice?
-
- Sounds like you're trying to drive it too fast. Could something be
- causing your clock rate to drift? Try slowing down just a little.
-
- The Polymath (aka: Jerry Hollombe, M.A., CDP, aka: hollombe@polymath.tti.com)
- Head Robot Wrangler at Citicorp Turn the rascals out!
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