| 摘要 |
PURPOSE:To suppress the vertical vibration of the balance weight of an elevator using a linear motor due to the installation error of guide rails. CONSTITUTION:The air gap between a linear motor 5 and a secondary conductor 6 is changed by the installation error of guide rails 7, 8 supporting the linear motor 5. The change is detected by a vertical body 9 and a detector 10, a contact A in a control device 50 is closed when a balance weight 4 passes this point, and tau1* is superimposed on the torque command tau* by a vibration offsetting torque generator 23. |
