| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a brake controller of an elevator capable of preventing the occurrence of rope slip between a sheave and a rope. <P>SOLUTION: This brake controller of the elevator is provided with a braking device 6 around which the rope connected with a car is stretched and which is driven by an electric motor, energizes braking force to the sheave for raising and lowering the car, and releases its braking force, a sheave speed detection part 7 detecting sheave speed, a car speed detection part 8 detecting car speed, and a braking force control unit 13 which controls the braking device to give all braking force when rope slip speed obtained as difference between the detected sheave speed and car speed is below a predetermined value when applying emergency brake and give braking force smaller than all braking force when the rope slip speed exceeds the predetermined value. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
