Develop / test ladder program for automated elevator control

Aim

Develop / test ladder program for automated elevator control.

Apparatus Required

PLC software, NO and NC switches.

Procedure

1. Load the RS Logix software to the PC.
2. Open the RS Logix software.
3. Switch On the PLC trainer.
4. Open the New project and draw the ladder logic program.
5. Compile the program.
6. Run the Program.
7. Give force and observe the output.

Concept structure: Elevator System

An elevator is one of the important aspects in electronics control module in automotive application using programmable logic controller to control the circuit and building the elevator model. Hall Effect sensor is used for the elevator position. DC Motor is used to control the up and down movement of the elevator car. Push buttons are used to call the elevator car. The elevator position is described by using the display unit.

Ladder diagram :

Explanation:

Conclusion:

1. A hall effect sensor is transducer that varies its output-------------------------------(voltage/current) in response to a magnetic field.
2. An elevator is a type of-------------------------------( vertical/horizontal) transport equipment that efficiently moves people or goods between floors of a building.

Viva Questions

1. Explain the need of elevator system.
2. List various components of elevator system.
3. Why hall effect sensor used in elevator system?
4. What is overflow bit of an up counter set?
5. What is underflow bit of an up counter set?
6. List two applications of PLC up down counter.