These devices are found in the elevator machine room and are only found in traction elevators.
Floor selector elevator.
You can also call the elevator from every floor by simply pressing a button.
A selector sometimes referred to as a floor selector or an elevator leveling cam is a mechanical device that shows the position of the elevator car in the shaft using electric circuit and without memory.
When the elevator arrives at a floor the technician has set switches on the screw to make contact to slow then stop the elevator.
Each lift company made their own version of what is know as a floor selector.
The site preparation work is very minimal keeping the costs low.
Having a selector on each of the floors makes it possible to go to whatever floor you want regardless of what floor you are currently on.
As the car moves up and down the selector box sends signals back to the controller identifying the car location in the hoistway.
It uses item frames for floor selection making it very easy and quick to pick the floor you want to go to.
For instance car location is especially important as the elevator levels to the floor.
This is a mechanical device to simulate the lift car s position in the shaft without having to run cables down the.
Additionally some older traction elevators use a cable that travels the length of the shaft with the car.
It is tied through a system of gears to a selector.
The selector box runs up and down on this metal tape and is mounted on top of the car.
The controller usually tune down the voltage between 12v to 24v to the controlling system only the motor needs 3 phase power supply.
Mechanical selectors were common in relay driven elevators installed before around 1985.
Number of occupants above the first floor i.
Elevator selector determine which elevator meets your building s needs in three easy steps.
The duo is an economical way to add an elevator to any 2 story home.
100 people or less 101 200 201 600 601 800 800 people or more.
This selector turns at a reduced ratio like a screw.
An elevator controller is a system to control the elevators either manual or automatic.
Estimate the number of occupants and visitors above the ground level in the building.