Limit Switch, Servo Motor Resources

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Discussion Overview

The discussion centers around gaining a deeper understanding of limit switches and servo motors, with participants seeking recommendations for resources such as textbooks and websites. The context includes both theoretical and practical applications of these components in systems involving motion control.

Discussion Character

  • Exploratory
  • Technical explanation

Main Points Raised

  • One participant requests recommendations for better resources on limit switches and servo motors beyond Wikipedia, indicating a background in physics.
  • Another participant suggests a specific textbook as a leading resource on the subject.
  • A different participant reiterates the same textbook recommendation, expressing gratitude.
  • One participant proposes exploring the websites of major servo manufacturers for application manuals, specifically mentioning Yaskawa and providing a link to their user manual.
  • Another participant discusses the function of limit switches in a simple DC servo system, describing how a diode in parallel with the limit switch can manage current and motor torque when limits are reached.

Areas of Agreement / Disagreement

Participants generally agree on the need for better resources and share specific recommendations, but there is no consensus on a single best resource or approach, as multiple suggestions are provided.

Contextual Notes

Some discussions may depend on specific applications or definitions of limit switches and servo motors, which are not fully explored in the thread.

Who May Find This Useful

This discussion may be useful for individuals interested in motion control systems, particularly those studying or working with servo motors and limit switches in practical applications.

mbrmbrg
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I need a better understanding of limit swtiches and servo motors than I'm getting from Wikipedia :)
Any website/textbook recommendations? (My background is physics.)

TIA!
 
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Another approach is dig through the websites of major servo manufacturers such as Yaskawa, Siemens, Indramat (now, Rexroth-Bosch), etc. on the lookout for application manuals.

For Yaskawa, page through the Sigma II Servo System User Manual
https://www.yaskawa.com/downloads?_...oadportlet_documentType=Manuals+-+User+Guides

Limit switches are often used as over-travel limits to disable the servo amp when something goes haywire with the motion controller, position feedback, and so on,.
 
With a simple DC servo system, a diode in parallel with the limit switch will prevent current and so motor torque once the limit is reached, while still permitting the motor to reverse back into the safe range.
 
Thank you all!
 

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