BACHELOR OF SCIENCE IN MECHANICAL ENGINEERING Study Guide - Quiz Guide: Limit Switch, Opto-Isolator, Float Switch
28 Mar 2023
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Draw the circuit diagram of the relay type and explain the function ofthe optocoupler used with these units. 2. b a workpiece is loaded on a conveyor belt and operates between two limits of travel (figure 1). When limit switch ls2 is activated, the conveyor moves in theforward direction. When limit switch ls1 is activated, the conveyor changes direction. Pressing the start button causes the motor to run in the forward direction, and pressing the stop button stops the motor. Write a ladder programthat could be used to operate this task. figure 1 question 3. adescribe the sequence of operations that occur during program scanning in a plc. 3. bthe goal of this problem is to control an automatic sliding door. The system automatically opens the door when a person approaches, and automatically closes after ten seconds. A lamp is turned on when the door is closing, and another one is turned on when the door is opening.
