Home
Flashcards
Preview
Automation Made Easy
Home
Get App
Take Quiz
Create
Automatically remove your image background. Try it now!
https://remove-image-background.com
3 Type of Mfg Processes
Continuous-Oil Refinery
Batch-Paint
Discrete-Manufacturing
How is electromagnetic formed?
Wrapping iron based bar with electrical wire
What replaced electromechanical relays?
PLC in 60s
Early logical scheme for automation
Relay Ladders.
4 primary measurements in process plants
1. flow
2. level
3. pressure
4. temperature
Devises that adjust the process, 3 types
Valves
Air dampers
Motor drives (adjust speed)
mechanism that controls position on valve
Actuator
3 steps of a controller
1. Receive measurement
2. Receive/compare to desired
3. Send signal to valve
3 signal types
1. Pneumatic
2. Electrical analog
3. Digital analog
2 responses to an "exception"
Service or Hold
Cascade Control
Reads result of final product, then adjusts parameter
Feedforward control
Reads in process results, then adjusts parameters
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)
Dead time
time for adjustment to take place
Multivariable Predictive Control
Like a life DOE. Reading many components of final product, adjusting many parameters.
DCS vs PLC
DCS for continuous flow (refinery)
PLC for discrete
MTU
Master Terminal Unit - provides overall monitoring for SCADA system
3 measurements common in predicting failure
Vibration
Bearing Temp
Oil Temp
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)
Automatically remove your image background. Try it now!
https://remove-image-background.com
Author
Jared023
ID
324091
Card Set
Automation Made Easy
Description
automation made easy book review
Updated
2016-10-05T14:11:13Z
Show Answers
Home
Flashcards
Preview