| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an elevator control device capable of operating the elevator even when a regenerative converter fails, while using a car as a scaffold for installation work when installing the regenerative converter at a position separate from the bottom part of a hoistway. <P>SOLUTION: This elevator control device comprises: an inverter provided at a bottom part or in the vicinity of the bottom part of a hoistway of the elevator, converting DC power to AC power when the DC power is input, and supplying it to a motor moving a car of the elevator; a diode converter provided at the bottom part or in the vicinity of the bottom part of the hoistway, converting AC power to DC power when the AC power is input, and supplying it to the inverter; a regenerative converter provided at the hoistway above the inverter and the diode converter, converting AC power to DC power when the AC power is input, supplying it to the inverter, and regenerating DC power from the inverter; and a switching device provided at the bottom part or in the vicinity of the bottom part of the hoistway, and configured to switch the supply destination of AC power between the diode converter and the regenerative converter when the AC power from a power supply is input. <P>COPYRIGHT: (C)2013,JPO&INPIT |
