公开(公告)号：US20150295524A1

公开(公告)日：2015-10-15

申请号：US14682623

申请日：2015-04-09

Applicant: ABB Technology Oy

Inventor： Ilpo KANGAS ,  Antti-Ilmari KEKKI ,  Olli KESKI-RAHKONEN ,  Tero VIITANEN

IPC: H02P3/06

CPC classification number: H02P3/06 ,  H02P29/02

Abstract: A method and an arrangement of producing a safe torque off procedure of an electrical drive including a control unit and one or more power units having controllable semiconductor switches. The method includes detecting a signal in a control unit indicating a requirement to stop the drive, generating, based on the detected signal, at least one safety-approved signal which when received in a power unit initiates shutting-down of the power unit, feeding the generated at least one safety-approved signal to one or more power units, and initiating the shutting down of the one or more power units upon the receipt of the at least one safety-approved signal, the at least one safety-approved signal initiating at least two different shut-down procedures of the one or more power units at different time instants.

Abstract translation: 一种产生包括控制单元和具有可控半导体开关的一个或多个功率单元的电驱动器的安全转矩关闭过程的方法和装置。 该方法包括检测控制单元中的信号，指示停止驱动的要求，基于检测到的信号产生至少一个安全许可的信号，当信号被接收在功率单元中时，启动电源单元的关闭，馈送 所产生的至少一个经安全许可的信号到一个或多个电力单元，以及在接收到所述至少一个经安全认可的信号时启动所述一个或多个电力单元的关闭，所述至少一个经安全认可的信号发起 在不同时刻的一个或多个动力单元的至少两个不同的关闭程序。