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    System and Method for Incremental Encoder Loss Detection
    1.
    发明申请
    System and Method for Incremental Encoder Loss Detection 有权
    增量编码器丢失检测的系统和方法

    公开(公告)号：US20160003885A1

    公开(公告)日：2016-01-07

    申请号：US14522430

    申请日：2014-10-23

    Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.

    Inventor： Claire Siew Ling Loke ,  John James Jenks ,  Liew Boh Chuan

    IPC: G01R31/08

    CPC classification number: G01D3/08 ,  G01R31/026

    Abstract: A system may include broken wire detector circuitry that may include an optocoupler, encoder isolator circuitry that may include input voltage protection circuitry, an optocoupler, and output filtering circuitry, and compensator circuitry that may include signal conditioning circuitry. The broken wire detector circuitry and the encoder isolator circuitry may be configured to accept inputs signals (A, B) and an index signal (Z) for a single-ended and differential type incremental encoder. The broken wire detector circuitry may be configured to convert an input AC pulse train signal to an analog DC signal. The encoder isolator may be configured to protect from high input voltages. And, the compensator may be configured to accept outputs of the broken wire detector circuitry and the encoder isolator circuitry and to integrate and dampen the analog DC signal that has a value representative of an operating state of the incremental encoder.

    Abstract translation: 系统可以包括断线检测器电路，其可以包括光耦合器，编码器隔离器电路，其可以包括输入电压保护电路，光耦合器和输出滤波电路以及可以包括信号调节电路的补偿器电路。 断线检测器电路和编码器隔离器电路可以被配置为接受用于单端和差分型增量编码器的输入信号（A，B）和索引信号（Z）。 断线检测器电路可以被配置为将输入AC脉冲串信号转换为模拟DC信号。 编码器隔离器可以被配置为防止高输入电压。 并且，补偿器可以被配置为接受断线检测器电路和编码器隔离器电路的输出，并且对具有表示增量编码器的操作状态的值的模拟DC信号进行积分和抑制。

    Enhanced Motor Drive Communication System and Method
    4.
    发明申请
    Enhanced Motor Drive Communication System and Method 有权
    增强电机驱动通信系统及方法

    公开(公告)号：US20150249612A1

    公开(公告)日：2015-09-03

    申请号：US14632248

    申请日：2015-02-26

    Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.

    Inventor： James B. Vitrano ,  August B. Schrab ,  Daniel J. Middlestetter ,  John James Jenks ,  Kurt R. Hohensee

    IPC: H04L12/801 ,  H04L29/08 ,  H04L12/40 ,  H02P23/00 ,  H04L1/00

    CPC classification number: H04L47/34 ,  H02P23/00 ,  H02P27/04 ,  H04L1/0061 ,  H04L12/40039 ,  H04L12/4013 ,  H04L67/125 ,  H04L69/08 ,  H04L2012/40221 ,  H04L2012/40228

    Abstract: In some embodiments, a motor drive system includes a communication subassembly electrically coupled to a control subassembly for providing communication between the control subassembly and at least one external device. The control subassembly and the communication subassembly transmit and receive control data independently of messaging data, greatly enhancing performance and reducing the workload of processors on the control subassembly and communication subassembly. Additionally, the control subassembly and the communication subassembly transmit message data via sequence count based messaging. Communications between the communication subassembly and the control subassembly may include a series of timeout periods and retries, increasing reliability.

    Abstract translation: 在一些实施例中，电机驱动系统包括电连接到控制子组件的通信子组件，用于提供控制子组件与至少一个外部设备之间的通信。 控制子组件和通信子组件独立于消息传送数据发送和接收控制数据，大大提高了处理器在控制子组件和通信子组件上的性能并降低了其工作量。 此外，控制子组件和通信子组件通过基于序列计数的消息传送来发送消息数据。 通信子组件和控制子组件之间的通信可以包括一系列超时周期和重试次数，增加可靠性。

    System and method for incremental encoder loss detection
    6.
    发明授权
    System and method for incremental encoder loss detection 有权

    公开(公告)号：US09671249B2

    公开(公告)日：2017-06-06

    申请号：US14522430

    申请日：2014-10-23

    Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.

    Inventor： Clare Siew Ling Loke ,  John James Jenks ,  Liew Boh Chuan

    IPC: G01R31/08 ,  G01D3/08 ,  G01R31/02

    CPC classification number: G01D3/08 ,  G01R31/026

    Abstract: A system may include broken wire detector circuitry that may include an optocoupler, encoder isolator circuitry that may include input voltage protection circuitry, an optocoupler, and output filtering circuitry, and compensator circuitry that may include signal conditioning circuitry. The broken wire detector circuitry and the encoder isolator circuitry may be configured to accept inputs signals (A, B) and an index signal (Z) for a single-ended and differential type incremental encoder. The broken wire detector circuitry may be configured to convert an input AC pulse train signal to an analog DC signal. The encoder isolator may be configured to protect from high input voltages. And, the compensator may be configured to accept outputs of the broken wire detector circuitry and the encoder isolator circuitry and to integrate and dampen the analog DC signal that has a value representative of an operating state of the incremental encoder.

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