| 摘要 |
PURPOSE:To easily obtain a deviation compensation amount for the unbalanced load of an elevator cage. CONSTITUTION:At the time of servicing an elevator, a cage load is detected and outputted as a digital signal to obtain a compensation for an unbalanced load. Also, an average of the deviation of a constant speed from a reference speed at an upward travel under an unbalanced cage load and the same deviation at a downward travel is obtained, and outputted as a digital signal. In addition, a compensation conversion means saves a constant for converting cage load data to deviation average data. When an elevator enters normal operation mode, the compensation conversion means multiplies load data in a load detection means by the aforesaid constant, and the obtained value is applied to a feedback control means as a deviation compensation amount, thereby compensating for an unbalanced cage load at the startup of the elevator to ensure elevator operation control to be free from a startup shock. |
