| 摘要 |
During a starting period upon starting of an elevator, a first control system generates a first torque current command value. In a steady period after the elapse of the starting period, a second control system controls an elevator drive unit (100) by generating a second torque current command value by adding, to a torque current command value that the second control system has generated and as an initial value, an offset current command value corresponding to the amount of imbalance load calculated by a car load estimation unit (206) at the time of switching of the control systems. |
