摘要 |
PURPOSE:To improve the deceleration of a cage by finding an optimum value as changing a time lag of response in a control system until the cage actually moves to a speed command value out of an electronic computer freely with it, and outputting the speed command value, preceded as long as a portion for the time lag, from the electronic computer. CONSTITUTION:If a cage is in deceleration, a speed signal inputted from a decelerometer generator 19 is differentiated and storaged in a random access memory 17. As in a wavy pattern, if arrival time Ta until maximum deceleration (-a) is shorter than a theoretical value T, a specified value t is added to time T1 to lengthen lag time T1, setting it down to T1. As in a wavy pattern B, if another arrival time Tb until the maximum deceleration (-a) is longer than the theoretical value T, the lag time T1 is subtracted by the specified value t, setting it down to T1 as well. In addition, as in a wavy pattern C, if it is made so as to exceed an allowable value (-a-alpha), there is necessary to shorten the lag time T1, so that a compensation distance is changed at the lag time. |