Elevator abnormality diagnosis system, elevator abnormality diagnosis device and elevator abnormality diagnosis method

摘要

PROBLEM TO BE SOLVED: To diagnose an abnormality of a guide rail of an elevator without installing a new detector. An embodiment of the present invention includes a load detecting device 4 that measures a load applied to a car 1, a rotary encoder 14 that is installed on a shaft of a motor of a hoist and detects a magnetic pole position, and a load. This is an elevator abnormality diagnosis system including an elevator control device 20 that controls the running of the car 1 based on the output signals of the detection device 4 and the rotary encoder 14, and an elevator abnormality diagnosis device 30. The elevator abnormality diagnosis device 30 is a guide rail on the car side and a guide rail on the counterweight side, respectively, based on the amount of fluctuation of acceleration calculated from the output signals of the load detection device 4 and the rotary encoder 14 during steady running of the car 1. Diagnose the presence or absence of installation abnormalities. [Selection diagram] Fig. 1