公开(公告)号：US07268514B2

公开(公告)日：2007-09-11

申请号：US11002011

申请日：2004-11-30

申请人： Robert J. DeLange ,  Timothy M. Rowan ,  Roman W. Lichon ,  Glenn E. Frazier ,  Lynn J. Cooksey

发明人： Robert J. DeLange ,  Timothy M. Rowan ,  Roman W. Lichon ,  Glenn E. Frazier ,  Lynn J. Cooksey

IPC分类号： B66B1/32 ,  B66B1/40 ,  H02P21/00 ,  H02P3/00

CPC分类号： B66B5/0031 ,  B66B1/30

摘要： A method and apparatus for stopping an AC motor that is controlling a load while detecting mechanical brake slippage of a mechanical brake for holding the load against movement includes a controller for decreasing torque-producing current commands from the drive while a speed regulator is commanding zero speed, sensing movement of the load while the speed regulator is commanding zero speed, detecting movement of the load past a pre-determined distance limit, and increasing torque to support the load and prevent further movement of the load. The controller will again decrease torque-producing current commands from the drive, and again checking for movement of the load, and upon sensing no load movement upon reaching zero torque, then shutting off the motor.

摘要翻译： 一种用于在检测用于保持负载抵抗运动的机械制动器的机械制动器滑动的同时控制负载的AC电动机的停止方法和装置包括用于在速度调节器指令零速度时减少来自驱动器的转矩产生电流命令的控制器 在速度调节器指令零速度时检测负载的运动，检测负载的运动超过预定的距离极限，以及增加转矩以支持负载并防止负载的进一步移动。 控制器将再次降低来自驱动器的扭矩产生电流指令，并再次检查负载的运动，并且在达到零转矩时检测到无负载运动，然后关闭电机。