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。