Industrial Mechatronics Dr. Zareena Kausar

BEMTS-8

Assignment-1

Q.1.Consider the scenario in which a start button turns on the Heater and the Stop button

(normally closed) turns it off. Initially there is a delay of 10 sec before the heater turns

‘ON’. After the heater is turned ‘OFF’ the cooling fans remain ON for 5 minutes.

Q.2. A conveyor is run by switching on or off a motor. We are positioning parts on the conveyor

with an optical detector. When the optical sensor goes on we want to wait 1.5 seconds

and then stop the conveyor. After a delay of 2 seconds the conveyor will start again. We

need to use a start and stop button , a light should be on when the system is active.

Q.3. Develop the ladder logic that will turn on a light, after a switch A has been closed 10 times. ASSIGNMENT 2

Q: solve example of press(mentioned in the book) with step programming and ladder logic programming.