1. This will be a test grade. Name:______________________
Turning in this assignment indicates that all the work is mine and I have not collaborated with any other person. Any research that you do on your own to complete this assignment is acceptable.
This will be a test grade.
Name:______________________
Date:______________________
Submitting assignment 15 points
Neat professional appearance 15 points
Correct motor control 10 points
Correct limit switches 10 points
Correct safety reverser 10 points
Correct optical reverser 10 points
Correct open-close buttons 10 points
Professional description 10 points
Correct labeling 10
Wireless operation extra credit
Design a garage door opener:
Include the following functions:
Open & close buttons
Limit switches to stop door when fully open & close
Safety back pressure reversing switch
Optical door safety control
Give a written description of how it functions

2. How the Door Should Work
A push button should open and close the door without the button being continually held
The door should stop when fully closed or fully open
If the door encounters an object it should stop closing and reverse
If the optical beam is broken it should stop closing and reverse
The door may (not required) include a wireless control

3. NC & NO Contact Relay Coils R S 88
Open
Relay Coils
Close
Open limit NC CC OC
NC & NO
Contact
Close limit NC
Wireless Receiver
Open
close
Wireless Transmitter
Pressure Switch R S 88
Optical Switch
Schematic symbols: Create any other symbols required and as many contacts, coils switches etc. as necessary