Richard W Piefer, 811000 Vista View Dr, Brookfield, WI 53005

7417386, Aug 26, 2008

Feb 28, 2006

11/364218

Richard W. Piefer - Brookfield WI, US
Thomas J. Rehm - Mequon WI, US
Kevin L. Baumann - Cedarburg WI, US
Christopher W. Como - Sussex WI, US
John D. Davis - Grafton WI, US
David C. Stringfellow - Buckinghamshire, GB

Rockwell Automation Technologies, Inc. - Mayfield Heights OH

H02P 5/00

318 85, 318 34, 318 41, 318 45, 318 52, 318 66, 318 68, 318 77, 318 78

A method and assembly for synchronizing machine operations, the assembly comprising a reference generator for generating a speed reference signal and a position reference signal, a plurality of slave units, each slave unit including, a mechanical device, a separate motor linked to and driving the mechanical device and a separate unit controller for controlling the unit motor, the unit controller receiving and using the reference signals to control motor operation and a synchronizer receiving the reference signals from the control signal source and simultaneously providing the reference signals to each of the slave unit controllers for use in controlling operation of the motors in a synchronized fashion.

7456599, Nov 25, 2008

May 31, 2005

11/141596

Richard W. Piefer - Brookfield WI, US
Thomas J. Rehm - Mequon WI, US
Juntao Quan - Ebikon, CH

Rockwell Automation Technologies, Inc. - Mayfield Heights OH

H02P 5/46

318625, 318 41, 318 77, 318 85

An apparatus for use with an encoder feedback device includes a comparator, a counter, and a prediction unit. The encoder feedback device is coupled to rotate with a rotating load and operable to generate at least one feedback position signal indicative of movement of the rotating load. The comparator is operable to receive the feedback position signal and generate a first position signal including a plurality of edges based on the feedback position signal. The counter is operable to receive the first position signal and count the edges to periodically generate position values at a predetermined update interval. The prediction unit is operable to receive a position data request at a first time and predict a position of the rotating load at the first time as a function of at least a subset of the position values generated prior to the first time and a misalignment between the first time and the predetermined update interval to generate an aligned position signal.

7531973, May 12, 2009

May 31, 2005

11/141549

Kevin L. Baumann - Cedarburg WI, US
Thomas J. Rehm - Mequon WI, US
Richard W. Piefer - Brookfield WI, US
John M. Keller - Milwaukee WI, US
David Christopher Stringfellow - Buckinghamshire, GB
Michael Robert Keller - Menomonee Falls WI, US

Rockwell Automation Technologies, Inc. - Mayfield Heights OH

H02K 29/00

318138, 318254, 318439

An electronic line shaft includes a motor drive and a processing unit operable to execute a wizard for configuring the motor drive. The wizard is operable to receive mechanical characteristic data associated with the motor drive, determine a noise parameter based on the mechanical characteristic data, and determine at least one control parameter of the motor drive based on the noise parameter.

7719219, May 18, 2010

May 22, 2008

12/125210

Kevin L. Baumann - Cedarburg WI, US
Thomas J. Rehm - Mequon WI, US
Richard W. Piefer - Brookfield WI, US
John M. Keller - Milwaukee WI, US
David Christopher Stringfellow - Buckinghamshire, GB
Michael Robert Keller - Menomonee Falls WI, US

Rockwell Automation Technologies, Inc. - Mayfield Heights OH

H02P 7/00

318466, 318461, 318632, 318652

An electronic line shaft comprising a motor drive comprising a velocity noise filter coupled to receive a feedback position signal and operable to filter the feedback position signal to generate a feedback velocity signal where the noise filter has at least one controllable filter parameter that affects filter operating characteristics and a processing unit operable to execute a wizard for configuring the motor drive, the wizard being operable to receive mechanical characteristic data associated with the motor drive that is provided as input by a wizard user via a user interface and to determine a noise parameter based on the mechanical characteristic data, wherein the at least one controllable filter parameter is adjusted as a function of the noise parameter.

7148635, Dec 12, 2006

Sep 21, 2005

11/231628

Richard W. Piefer - Brookfield WI, US
Thomas J. Rehm - Mequon WI, US
Takayoshi Matsuo - Brown Deer WI, US

Rockwell Automation Technologies, Inc. - Mayfield Heights OH

H02P 5/46

318 85, 318 34, 318 41, 318 68, 318 52

A motor control system for controlling a motor includes control logic and a motor controller. The control logic is operable to generate a control signal at a first periodic time responsive to a synchronization signal. The motor controller is operable to generate a drive signal for the motor based on the reference signal at a second periodic time synchronized with respect to the first periodic time.