Elevator Operations

SINGLE AUTOMATIC OPERATION

Automatic operation by means of the button in the car for each landing level served and one button at each landing so arranged that if any car or landing button has been actuated, the actuation of any other car or landing operating button will have no effect on the movement of the car until the response to the first button has been completed.

DOWN COLLECTIVE AUTOMATIC OPERATION - ONE CAR (SIMPLEX)

The car normally rests at the main floor. Main floor has an 'UP' call button. Floors above have 'DOWN' call button. The controller memorises landing and car calls. This system is ideal for residential buildings. When more than one landing calls are received, the car will travel to the highest call, stopping at other landing calls during the descent. During an 'UP' journey from the main floor, the car ignores all landing calls, stopping at car calls in floor sequence. After the highest car call floor, the car will descend, stopping at landing and car calls in floor sequence back to the main floor. The system is suitable only for light traffic, and it should be used only when traffic is mainly up from, and down to, the main floor eg. residential buildings.

DOWN COLLECTIVE AUTOMATIC OPERATION - TWO CAR (DUPLEX)

Operates as the Simplex but with no calls in the system, one car rests at the main floor, the other normally at the last floor served, unless that was the main floor, when the car will park at a midway point. When a landing call is received, the microprocessor calculates which car is nearest to the call. If a series of landing calls is received, a car will be despatched to the highest call, and then work down in floor sequence. The microprocessor constantly monitors the system and re-assigns calls when necessary.