From: no@spam.com   
      
   On Sun, 08 May 2016 15:13:56 +0100, M Philbrook    
   wrote:   
      
   > In article , no@spam.com says...   
   >>   
   >> I know what a servo motor is, and that you can get servo amplifiers (or   
   servo drives) to work with them, but what does it mean when a stereo system   
   says it has a servo amplifier?   
   >   
   >  The amp is the part that actually handles the high currents in the   
   > motor coils.   
   >   
   >   The rest of it before that is the controller that generates the   
   > signals and monitors the motor's position vie the internal feed   
   > back sensors of the motor.   
   >   
   >  The control could be programmed to generate signal steps per step   
   > command or scaled, meaning that multiple steps can be generated per   
   > step command.   
   > One step of the motor normally is governed by the type of motor   
   > and its feed back system..   
   >   
   >  For example, systems with internal encoders of 5k or more per   
   > turn have step spaces of 5K or more. etc..   
   >   
   >  The amplifier can be a dummy type or it could have additional   
   > functions for current controls for step move and control settings   
   > for holding positions etc. Normally additional IO is set up to   
   > trigger these options from the controller itself.   
   >   
   >  It's best to get the controller and amp together as one. Also   
   > depending on the system of design in mind, you can op for a   
   > master power supply to serve a rack of servo drives or get   
   > stand alones.   
      
   Er yes.... but I have a stereo system amplifier which mentions servo.  There's   
   no motors involved.   
      
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   Pink means pregnant.   
   Brown means you had it in the wrong hole.   
      
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