| 摘要 |
The invention relates to an elevator system and also to a method for monitoring the operating condition of an elevator system. In the method samples (3) are taken of the control signal (2, 13, 14) of the drive device (1) of the elevator, from the series of samples (3) taken a frequency component (4) is determined that is characteristic to the part (5, 11, 12) of the elevator assembly driven with the drive device (1), and also the operating condition of the part (5, 11, 12) of the elevator assembly is monitored on the basis of the determined frequency component (4). |
