Automation Made Easy

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  1. 3 Type of Mfg Processes
    • Continuous-Oil Refinery
    • Batch-Paint
    • Discrete-Manufacturing
  2. How is electromagnetic formed?
    Wrapping iron based bar with electrical wire
  3. What replaced electromechanical relays?
    PLC in 60s
  4. Early logical scheme for automation
    Relay Ladders.
  5. 4 primary measurements in process plants
    • 1.  flow
    • 2.  level
    • 3.  pressure
    • 4.  temperature
  6. Devises that adjust the process, 3 types
    • Valves
    • Air dampers
    • Motor drives (adjust speed)
  7. mechanism that controls position on valve
    Actuator
  8. 3 steps of a controller
    • 1.  Receive measurement
    • 2.  Receive/compare to desired
    • 3.  Send signal to valve
  9. 3 signal types
    • 1.  Pneumatic
    • 2.  Electrical analog
    • 3.  Digital analog
  10. 2 responses to an "exception"
    Service or Hold
  11. Cascade Control
    Reads result of final product, then adjusts parameter
  12. Feedforward control
    Reads in process results, then adjusts parameters
  13. Process gain
    ratio of the change in output to the change in input that caused it.  (change voltage by X will improve push test by Y)
  14. Dead time
    time for adjustment to take place
  15. Multivariable Predictive Control
    Like a life DOE.  Reading many components of final product, adjusting many parameters.
  16. DCS vs PLC
    • DCS for continuous flow (refinery)
    • PLC for discrete
  17. MTU
    Master Terminal Unit - provides overall monitoring for SCADA system
  18. 3 measurements common in predicting failure
    • Vibration
    • Bearing Temp
    • Oil Temp
  19. 4 Levels of maintenance strategy
    • 1.  Break fix
    • 2.  Preventive Maint
    • 3.  Predictive Maint
    • 4.  Reliability Centered Maint-analyze downtime and failure impact to determine controls (sometimes backups)

Card Set Information

Author:
Jared023
ID:
324091
Filename:
Automation Made Easy
Updated:
2016-10-05 14:11:13
Tags:
automation
Folders:
automation
Description:
automation made easy book review
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