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Control of Motion Discrete Motion Proportional Motion On/off control

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Presentation on theme: "Control of Motion Discrete Motion Proportional Motion On/off control"— Presentation transcript:

1 Control of Motion Discrete Motion Proportional Motion On/off control
Simple logic Proportional Motion Trajectories, velocities, acceleration Open loop or closed loop

2 Digital Logic Expressions
oPICK = (iPARTRDY • iCYLRETRACT + oPICK • /iCYLEXTEND) • /iESTOP 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.

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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