What is a platform?
A platform is a place where people stand easily on it and it always upper on the ground.It also moves in two directions(upward and downward).
Introduction
This is a circuit to control the platform and also control it's directions.This circuit is used to changes it's position upward to downward.
Explanation
This circuit is used to control it's directions.In this circuit a stop button is used to stop it's position and and the two switches are used one is for upward and the other is for downward.In this circuit a control relay is used which is normally closed and in abnormal condition it automatically opens it's contacts and the motor stops automatically.
Circuit Diagram
Uses
This circuit is used for exhibition puposes and in lifts of hotels and other commercial building ,in ladders and also in stairs of shopping malls.