How Lift or Elevator Works? Learn with Block Diagram
A lift or elevator is a vertical transportation system or device that is designed to carry people or goods between different levels or floors of a building. It consists of a cabin or platform that moves up and down along vertical shafts guided by rails or cables. You can see their use in Residential Buildings Office Buildings, Hotels, Shopping Malls, Hospitals, Airports and Train Stations, Educational Institutions, Commercial Buildings and Skyscrapers, Public Facilities, etc.
Anyway, in this article, we are going to understand the working principle of the Lift or Elevator with a detailed block diagram. This block diagram will help you a lot to easily understand how a lift or elevator system works.
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According to the above block diagram, here is a simple description of each block,
Main Control System: It manages and controls all the operations of the lift, coordinating its movements and responding to user commands. It is actually the central brain of the lift system. It manages and oversees all lift operations, including starting, stopping, and determining the direction of travel.
Motor Driver: This component provides electrical energy to the lift's motor and controls its speed and direction as instructed by the main control system. It interprets control signals to ensure accurate positioning and safe acceleration or deceleration of the lift car.
Power Supply: It supplies electrical energy to power the lift's various components, ensuring they function properly. This essential component provides the necessary electrical power to all parts of the lift system. It ensures that the control circuits, motor, lighting, communication systems, and safety mechanisms operate continuously and reliably, even under varying load conditions.
Hoist Machine: It raises and lowers the lift car using an electric motor, pulleys, and cables or ropes. Its performance directly affects ride comfort and travel speed.
Safety System: This system incorporates features like emergency brakes, overspeed governors, door interlocks, and safety sensors to ensure passenger safety and prevent accidents.
Call Buttons: Located on each floor and inside the lift car, passengers use these buttons to request the lift to stop at their desired level.
Lift Cabin/Lift Car: It's the compartment in which passengers and goods are transported vertically.
Display Indicator: It shows the current position and direction of the lift, helping passengers identify its status.
Landing Doors: These doors are found on each floor and open when the lift arrives, allowing passengers to enter or exit the lift car.
Communication System: It facilitates communication with passengers during emergencies or provides announcements and instructions if needed. An integrated system that allows passengers to communicate with security or maintenance personnel in case of an emergency. It may include intercoms, speakers, or emergency buzzers, and can also deliver automated announcements, enhancing both safety and user guidance.
In summary, A lift or elevator system consists of several key components that work together to provide vertical transportation within a building. The main control system manages all operations, while the motor driver supplies electrical energy and controls the motor.
A power supply system provides power to various components, and the hoist machine raises and lowers the lift car. Safety systems ensure passenger safety, call buttons enable users to request stops, and display indicators show the lift's position.
Landing doors allow access to the lift car, and a communication system facilitates emergency communication and announcements. Understanding these components is crucial for comprehending the functionality and safe operation of a lift or elevator system.
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