Module 12 Lecture Outline: Introduction to Motion Controls Feedback Devices
- Motion Control Parameters
- Position
- Used in open and closed loop systems
- Closed loop: Move load from one fixed position to another fixed position. Feedback is the key to using this control.
- Open loop: Position is controlled by an Indexer that provides pulses to a stepper motor. This motor moves in precise, small incremental steps equal to the number of pulses.
- Velocity
- Motion that takes place with respect to time
- Manufacturing applications determine the type of speed that is required to complete the task.
- Acceleration
- Changes in speed in respect to time
- 3 factors are Inertia, Friction, and gravity
- Torque
- This is the force that causes an object to rotate
- Used with motors and hydraulics
- Motion Control Elements
- See PowerPoint presentation“Motion Control Elements for Closed Loop Systems”
- Labs
- Sensors Output Wiring Lab
- Incremental Encoders Lab
- Encoders Lab
- Design Logic Ladder Lab
- Programmable Logic Controller Lab