Rockwell Automation Technologies Incorporated

Shankernarayan Ramanarayanan

Mark R Cooper

Patrick E Ozimek

David D Van Dorpe

Oliver C Haya

Paul Jerome Grosskreuz

Jadav Das

Juan A Fernandez

Rui Zhou

Eric Gardner

Tamil K Rajavel

Robert H Schmidt

Arun K Guru

Wei Qian

Zhenhuan Yuan

Kelly James Bronk

Chetan Chandrasekara

Kevin J Riederer

Jon P Vanderpas

Shun Feng

Manas Sawant

James C Sandell

A system and method of monitoring forces exerted at multiple locations on a mover includes multiple sensors, where each sensor is mounted at one of the locations. Each sensor detects an operating condition of the mover at the location on the mover at which it is mounted. The sensors may include accelerometers, strain gauges, or a combination thereof. Each strain gauge is mounted proximate to an area of interest on the mover. Each strain gauge generates a feedback signal corresponding to a deformation of the material measured at the location of the sensor. From the measured deformation of material, a force acting on the mover at the location of the sensor may be determined. The forces exerted at the different locations on the mover may be monitored in real time to determine bearing performance or monitored over a duration of time to observer changes in bearing performance over that duration.

System and method for strain and acceleration based analytics in an independent cart system

A method and system for communication between a motor controller and an analytic module includes a Single Pair Ethernet interface with power supplied over the two data lines. The analytic module, in turn, connects to a motor or other devices proximate the motor. The analytic module receives input signals from the motor or different types of sensors or devices. A processing unit in the analytic module may perform some initial processing on the incoming data. The processing unit is configured to transmit either the raw input signals or processed data via the Single Pair Ethernet connection back to the motor controller or to other controllers in the system with the motor controller acting solely as a pass-through gateway. The analytic module unit may be configured to transmit data at different update rates. One of the update rates may be synchronized to an update period in the motor controller.

Method and apparatus for communication between analytic modules and a motor drive

A linear motor system may include a plurality of track sections that may enable a mover to traverse a track formed by the plurality of track sections. The system may also include a plurality of connection modules, such that each connection module of the plurality of connection modules may physically couple two respective adjacent track sections of the plurality of track sections and communicatively couple the two respective adjacent track sections of the plurality of track section. Each connection module may also electrically couple the two respective adjacent track sections of the plurality of track section.

Track connection module for linear motor tracks

A method and system for motion control of movers in an independent cart system is disclosed. In one implementation, the independent cart system includes a plurality of track segments, each section having a respective controller. One of the controllers receives a motion command for a plurality of carts, respectively. The controller generates a force command for each of the plurality of carts and transmits the respective commands to the track segments commutating the plurality of carts.

Independent cart system and method of operating the same

A mover is configured to be electromagnetically propelled along a track in a linear motor track system with a force that is calculated to include compensation for gravity. A multi-axis accelerometer arranged in each segment of the track can detect an orientation or angle of the track segment for determining gravity with respect to the particular section. As a result, if the track is at an incline, such as a ramp, a desired force for moving a mover along the track can be compensated to include gravity due to the incline for achieving a desired motion result. In addition, the detected orientation of the track can be compared to an expected orientation stored by a control program to avoid a loss of performance due to physical changes in the track not matching an expected/programmed configuration of the track.

Linear motor track system with automatic gravity detection

An improved system for monitoring vibration of an electric machine is disclosed. According to one embodiment, sensors are positioned in a plane orthogonal to the motor shaft and each sensor detects vibration along at least one axis of the motor. The sensors are oriented such that the polarity of each sensor is reversed. The pairs of sensors may be used to isolate specific vibrations within the motor. According to another embodiment, a sensor may be mounted directly to the motor shaft. The sensor on the motor shaft directly detects vibrations along the motor shaft. Optionally, a second sensor may be mounted to a fixed location within the motor housing, and the combination of the sensor on the motor shaft and the sensor at a fixed location may be used to isolate specific vibrations within the motor. A motor controller may adjust operation of the motor to reduce the isolated vibration.

System and method for detection of motor vibration

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Eden Prairie, MN, United States of America

Shankernarayan Ramanarayanan