| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydraulic elevator control device having a starting pressure balance control device that can accurately and easily set a control parameter required for starting pressure balance control so as to be able to reduce load of site adjustment. SOLUTION: The control command value supplied to a valve 9 for the specified time after starting a hydraulic pump 8 is fixed to the initial control command value Is acquired front a start-up initial control command value acquisition means 21, and after the lapse of the specified time, a control parameter required for control in a PI control device 17 is automatically computed by a step response confirming means 22, a step response analyzing means 23 and a control parameter setting means 24 from a step response characteristic obtained by supplying the control command value Is+a to the valve 9. |
