FIELD: transport.
SUBSTANCE: invention relates to elevators, particularly, to their control systems. Elevator system comprises controller. Controller 20 comprises acoustic oscillator 21 arranged nearby wire rope 3 without contact therewith to generate contact signal at contact with deformed wire rope strand, mike 25, electric circuit, and rotary converter. Electric circuit comprises band filter, comparator and memory cell. Comparator outputs signal describing detected defect.
EFFECT: continuous control and flaw detection.
8 cl, 8 dwg
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