| 摘要 |
PURPOSE: To prevent starting shock by setting a pattern of acceleration speed instruction to a landing car and integrating the determined car acceleration speed pattern in a car speed instruction operational means to operate a speed instruction to the landing car and controlling pressure oil flow rate to be supplied to a hydraulic jack. CONSTITUTION: An acceleration speed instruction pattern 7a to a landing car is determined by a car acceleration speed pattern setting means 7 and it is entered in an integrating circuit 8. The acceleration speed instruction pattern 7a from the car acceleration speed pattern setting means 7 is integrated and a speed instruction 8a to the landing car is operated and it is entered in a conversion factor circuit 3 by the integrating circuit 8. While, the car speed instruction 8a from the integrating circuit 8 is converted into a motor speed instruction 3a and entered in a motor speed control means 4 in the conversion factor circuit 3. The motor speed 4a is provided to an elevator through an elevator hydraulic/machine system 5 by the motor speed control means 4 employing invertor control and the landing car is lifted. |
