Speed instruction generating device for elevator

摘要

A method for controlling the movement of an elevator cage in which a difference between first and second speed instruction values is made constant irrespective of speed so that no shock force is applied to the cage at a time of switching between speed instruction values. A predetermined distance is added to a remaining distance of the age to a target floor. A modified second speed instruction value corresponding to the resultant distance is compared with the first speed instruction value, and when this difference becomes smaller than a predetermined value, a switching preparation instruction is issued. The elevator is operated at a speed determined by the first speed instruction value until a predetermined period of time after the switching preparation instruction after which the elevator is operated in accordance with the second speed instruction value.