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Introduction to Motion Control Systems

Learn about controlling motion with on/off and proportional methods, both closed-loop and open-loop systems. Understand digital logic expressions for automated operations. Explore pneumatic and electric logic elements for efficient control mechanisms.

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Introduction to Motion Control Systems

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  1. Control of Motion • On/Off Control (bang-bang) • Proportional Control • closed loop • open loop

  2. Digital Logic Expressions • Pickup when part is ready, and cylinder is retracted, and emergency stop is not on, or while cylinder is not fully extended and emergency stop is not on. oPICK = (iPARTRDY • iCYLRETRACT + oPICK • /iCYLEXTEND) • /iESTOP

  3. Pneumatic Logic Elements • Directional control valve • Shuttle valve - OR function • Twin pressure valve - AND function • Other functions • Check valve • Speed control valve • Time delay valve

  4. Electric Logic Elements • wired in series = AND • wired in parallel = OR • Relay = NOT

  5. Boolean Arithmetic

  6. Relays

  7. Ladder Diagrams Coil N.O. Contact N.C. Contact

  8. Example – Light Switch

  9. Example – Light Relay

  10. Example – Light Relay, “And” Logic

  11. Example – Light Relay – “OR” Logic

  12. Timing Diagrams

  13. State Machines

  14. State Diagram

  15. Logic Equation and Ladder Diagram

  16. Example – Latching Relay Logic

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