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???
12/10/05 14:38
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 		 #105037 - closed loop systems
Responding to: ???'s previous message
Yes they can the requirements of the project determine the chosen drive source steel and paper mills use this system. continuous motion with feedback to maintain product parameters. They are not well suited to stop start motion control due to heating issues and poor responce linearity of the motors at very low speed.
Terry

List of 63 messages in thread
TopicAuthorDate
shaft encoder & HCTL2032 with stepper.            01/01/70 00:00      
   2032 clock            01/01/70 00:00      
      Re: 2032 Clock.            01/01/70 00:00      
   Correct Freq.            01/01/70 00:00      
      discusses the clocking            01/01/70 00:00      
         and one more            01/01/70 00:00      
   Clock = 32MHz still decoder cheating.            01/01/70 00:00      
      Damper ?            01/01/70 00:00      
         Re: Damper.            01/01/70 00:00      
            Sp            01/01/70 00:00      
               Re: Sp.            01/01/70 00:00      
                  closed loop systems            01/01/70 00:00      
                     and            01/01/70 00:00      
                  What is the reason for vibration?            01/01/70 00:00      
                     Re: Vibration Source.            01/01/70 00:00      
                        Vibration or resonance..?            01/01/70 00:00      
                           Stepper motor action            01/01/70 00:00      
                              Exactly...            01/01/70 00:00      
                                 OK            01/01/70 00:00      
                                    ringing            01/01/70 00:00      
                                       depends on factors            01/01/70 00:00      
                                       Just visualize any mechanical drive stop            01/01/70 00:00      
                        Possible tests            01/01/70 00:00      
                           Bummer isn't it ?            01/01/70 00:00      
      I know this, but has not seen it with tr            01/01/70 00:00      
         lower the clock            01/01/70 00:00      
            exactly            01/01/70 00:00      
               Re: Exactly.            01/01/70 00:00      
      errors            01/01/70 00:00      
         oscillation            01/01/70 00:00      
   Not Sure.            01/01/70 00:00      
      what does the scope say?            01/01/70 00:00      
         oscillator            01/01/70 00:00      
   Tried Frequencies from 25kHz to 33MHz.            01/01/70 00:00      
      you have something defective            01/01/70 00:00      
         Mechanics            01/01/70 00:00      
            I agree            01/01/70 00:00      
               any mechab=nical, however bad should giv            01/01/70 00:00      
                  Sloppy            01/01/70 00:00      
         RE: defective.            01/01/70 00:00      
            did you forget the mistletoe?            01/01/70 00:00      
               Re: offload.            01/01/70 00:00      
                  I mixed up 2 HCTLxxx chips.            01/01/70 00:00      
   Why encoder?            01/01/70 00:00      
      Reference            01/01/70 00:00      
         absolute encoder            01/01/70 00:00      
            expensive.            01/01/70 00:00      
               absolute encoders            01/01/70 00:00      
               the real problem with absolute encoders            01/01/70 00:00      
                  Nah            01/01/70 00:00      
      Re: Why Encoder.            01/01/70 00:00      
   Encoder with stepper            01/01/70 00:00      
   Problem Solved.            01/01/70 00:00      
      "Solved" ?            01/01/70 00:00      
         Re: Resonance.            01/01/70 00:00      
      "problem solved" does not jive            01/01/70 00:00      
         Re: Misleading encoder.            01/01/70 00:00      
            HCTL-2032 encoder counting problem            01/01/70 00:00      
   Torsion Damper.            01/01/70 00:00      
      Capture ?            01/01/70 00:00      
         Stepper motor with shaft encoder            01/01/70 00:00      
         Re: Capture.            01/01/70 00:00      
   Stepper motor            01/01/70 00:00      

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