Method for determining e.g. operating parameter of lift system, involves exciting part of traction rope to oscillation, and detecting generated oscillation at rope, where rope is guided over traction drive

摘要

The method involves exciting a part of a traction rope (6) to oscillation, where the rope is guided over a traction drive (5). Oscillation generated at the rope is detected, and resonance oscillation of the excited part is determined. A parameter e.g. amplitude, of the generated oscillation is determined, and is correlated with an operating parameter. A lift cage (3) and counterweight (4) are arranged in a defined position before determination of the parameter. The oscillation excitation and oscillation measurement are concurrently or successively performed at the rope and/or part of rope. Independent claims are also included for the following: (1) a measuring device for determining a parameter of a lift system (2) a computer program product comprising instructions to perform a method for determining a parameter of a lift system.