公开(公告)号：US11381193B2

公开(公告)日：2022-07-05

申请号：US17027035

申请日：2020-09-21

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Al J. Campbell ,  Timothy J. Strandt ,  Jason H. Downing ,  Divesh Sachdeva ,  Daniel J. Middlestetter

IPC: H02P29/024

Abstract: A disconnect override circuit for a power conversion system includes a first input coupled to a user disconnect switch to receive a disconnect input signal, as well as a second input coupled to a motor drive or motor starter to receive a fault signal, and a third input adapted to receive an override signal. The disconnect override circuit has an output configured to provide a disconnect control output signal to control a user disconnect circuit according to the disconnect input signal, the fault signal and the override signal, the output signal having a first state to cause the user disconnect circuit to allow power transfer from the AC input to the motor drive or motor starter, and a second state to cause the user disconnect circuit to prevent power transfer from the AC input to the motor drive or motor starter.

公开(公告)号：US20220094296A1

公开(公告)日：2022-03-24

申请号：US17027035

申请日：2020-09-21

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Al J. Campbell ,  Timothy J. Strandt ,  Jason H. Downing ,  Divesh Sachdeva ,  Daniel J. Middlestetter

IPC: H02P29/024

Abstract: A disconnect override circuit for a power conversion system includes a first input coupled to a user disconnect switch to receive a disconnect input signal, as well as a second input coupled to a motor drive or motor starter to receive a fault signal, and a third input adapted to receive an override signal. The disconnect override circuit has an output configured to provide a disconnect control output signal to control a user disconnect circuit according to the disconnect input signal, the fault signal and the override signal, the output signal having a first state to cause the user disconnect circuit to allow power transfer from the AC input to the motor drive or motor starter, and a second state to cause the user disconnect circuit to prevent power transfer from the AC input to the motor drive or motor starter.