| 摘要 |
PURPOSE:To prevent deterioration or the like of a feeling to ride of passengers by detecting temperature and pressure of oil and, by a speed signal of low speed pattern based on this detection value, controlling a speed of an electric motor except at the time of lifting an elevator. CONSTITUTION:A cage 5 is lifted by an up or down direction call, when the cage reaches a predetermined position before an objective story, a signal from an up or down running pattern generating circuit 41U, 41D is gradually decreased by a deceleration command a signal 9a, and the cage is stopped by a stop command signal 10a. Now, when an ol temperature signal 16a is in a level L by a long period operation stop or the like, because a normally-open contact 30d is opened with no start command, an output of a NOR circuit 43 obtains a level H, while because a pump delivery pressure 8a is lower than a load side pressure 16a, a selector switch 42 is no actuated, and an oil hydraulic pump is rotated at a low speed by a low speed running pattern generating circuit 45. Next a pump delivery amount is increased to exceed a leak amount, when the pump delivery pressure 8a approaches the load side pressure 6a, the selector switch 42 is actuated to hold a signal from the low speed pattern generating circuit 45 in a specified value. |
