| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a control device for an elevator, capable of operating an elevator to minimize stop of it even in a case where power supply to the elevator is disconnected. <P>SOLUTION: This control device is provided with changeover means 5p and 5n provided on a DC busbar part 8 between a converter 2 and an inverter 3 for a changeover to the DC busbar part 8 and a DC busbar part 8a between the converter 2 and the inverter 3a, changeover means 5pa and 5na provided on the DC busbar part 8a for a changeover to the DC busbar part 8 and the DC busbar part 8a, and a DC busbar voltage abnormality detection means 75 to operate the changeover means 5p and 5n when the DC busbar part 8a is normal in a case where occurrence of abnormality at the busbar part 8 is detected, cut off the DC busbar part 8 having the abnormality, and connect the DC busbar part 8 to the inverter 3, so that power is fed from the DC busbar part 8a that is normal to the inverter 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
