Patent ID: 7721852
Filing Date: 2010-05-25
Classification: B66B

Abstract:
1. An elevator control apparatus, comprising: an abnormality monitoring portion that determines whether there exists an abnormality in an elevator based on information from a sensor, and outputs a signal for stopping a car upon detecting the abnormality; a history information recording portion that records a history of information concerning the determination by the abnormality monitoring portion; and a soundness diagnosing portion that performs an automatic diagnosis on soundness of the abnormality monitoring portion, the history information recording portion recording a result of the diagnosis by the soundness diagnosing portion, wherein: the abnormality monitoring portion is a speed monitoring portion that performs a comparison between a detected speed of the car and a set value, sets the set value according to a position of the car, and outputs the signal for stopping the car depending on a result of the comparison; and the soundness diagnosing portion checks a computing result of the set value with respect to the car position for the diagnosis on the operation of the speed monitoring portion.