CAGE STOP HEIGHT READJUSTING APPARATUS FOR ELEVATOR SYSTEM AND METHOD THEREOF

摘要

A cage stop height readjusting apparatus for an elevator system and amethod thereof which are capable of accurately stopping a cage at a predeterminedfloor at a zero level of a cage stop height. The apparatus includes a positiondetection rotary encoder for outputting second pulse signal which corresponds to anactual running distance of a cage as a pulley is rotated by a wire connected with thecage, and a main controller for receiving first and second position detection signalsfrom first and third position detectors and first and second pulse signals from thespeed detection rotary encoder and position detection rotary encoder when the cageis stopped in a cage stop height readjusting zone, computing a cage stop heightadjusting distance, and outputting a speed instruction signal for the cage stop heightadjusting operation based on the thusly computed cage stop height adjustingdistance. (Fig. 10)