| 摘要 |
PURPOSE:To ensure safety detecting a trouble at a high speed, even when a pilot valve is on-connected, by providing an inhibiting means for inhibiting an output of pulse width train signal on condition that the pulse width train signal increases its pulse width to a predetermined value or more. CONSTITUTION:A coil driving circuit trouble detecting means 190 in a fluid pressure elevator control device 1 is actuated so as to output a signal of trouble in the case of voltage being applied interlocking for not less than predetermined time to solenoid coils CD1, CD2, CU1, CU2. When this signal of trouble is generated, an operation control circuit 200 cuts off a power source for the solenoid coils CD1, CD2, CU1, CU2 of a pilot valve. In this way, a riding cage, before its speed increases, can be stopped in a door zone, and a passenger is not required to be confined in the cage. |
