Elevators must be set up on the ground floor.

And in RDF mode, if menus 1-30, 34, 35, 59, 64 and 89 are 0, or smaller than the newly set lowest floor, they will be changed to the newly set lowest floor.

Elevator (vertical elevator) is a transportation equipment that transports pedestrians or goods vertically. Elevators serve buildings with specified floors. Vertical lift elevators have a car that runs between at least two rows of vertical or rigid guide rails with an inclination angle of less than 15° to facilitate passenger entry and exit or loading and unloading of goods. According to speed, they can be divided into low-speed elevators (4 meters). per second), fast elevators (4 to 12 meters per second) and high-speed elevators (above 12 meters per second).