Motor drive having integral programmable logic controller

• US 8,482,240 B2
• Filed: 10/05/2010
• Issued: 07/09/2013
• Est. Priority Date: 09/29/2006
• Status: Active Grant

• Current Assignee: Rockwell Automation Technologies Incorporated (Rockwell Automation, Inc.)
• Original Assignee: Rockwell Automation Technologies Incorporated (Rockwell Automation, Inc.)
• Inventors: El-Ibiary, Yehia M.
• Primary Examiner(s): Ip, Paul
• Application Number:
  US12/898,427
• Publication Number:
  US 20110025249A1
• Time in Patent Office: 1,008 Days
• Field of Search: 318/565, 318/575, 318/600, 318/632, 318/400.09, 318/400.4, 318/569, 318/652, 318/638, 318/400.9, 702/56, 702/183, 709/230
• US Class Current: 318/600
• CPC Class Codes: H02K 11/33 Drive circuits, e.g. power electronics H02K11/38 takes precedence
• CPC Class Codes: H02K 11/35 Devices for recording or transmitting machine parameters, e.g. memory chips or radio transmitters for diagnosis
• CPC Class Codes: H02P 2006/045 Control of current
• CPC Class Codes: H02P 6/04 Arrangements for controlling or regulating the speed or torque of more than one motor H02P6/10 takes precedence

Abstract

A system, in one embodiment, includes a drive having a housing, a stator disposed in the housing, a rotor disposed in the stator, and a programmable logic controller disposed inside, mounted on, or in general proximity to the housing. In another embodiment, a system includes a network, a first motor having a first integral programmable logic controller coupled to the network, and a second motor having a second integral programmable logic controller coupled to the network. In a further embodiment, a system includes a rotary machine having a rotor and a stator disposed concentric with one another, a microprocessor, memory coupled to the microprocessor, a power supply coupled to the microprocessor and the memory, and a machine sensor coupled to the microprocessor.

Claims

1. A motor control system, comprising:

a motor drive component configured to drive a motor in rotation for powering a load; and

a programmable logic component electrically coupled to the motor drive component and mounted on or in the motor drive component and configured to perform logic operations for control of the motor drive component;

wherein the programmable logic component is configured to cooperate with the motor drive component for control of the motor without command of a remote control component, and to report data to the remote control component via a network, and wherein the motor drive component and the programmable logic component are disposed in or on a common housing with a motor rotor and motor stator.

2. The system of claim 1, comprising at least one additional motor drive component, each motor drive component configured to drive a respective motor in a machine system, at least one additional programmable logic component, each programmable logic component being electrically coupled to a respective motor drive component and mounted on or in the respective motor drive component and configured to perform logic operations for control of the respective motor drive component, each programmable logic component being coupled to the remote control component via the network and configured to cooperate with the respective motor drive component for control of the respective motor without command of the remote control component, and to report data to the remote control component via the network.

3. The system of claim 2, wherein the programmable logic components are configured to exchange data with one another via the network.

4. The system of claim 1, wherein the programmable logic component is configured to monitor and interpret sensor data.

5. The system of claim 4, wherein the sensor data comprises voltage, or current, or power, or temperature, or vibration, or a combination thereof, of the motor drive component.

6. The system of claim 1, wherein the programmable logic component is configured to coordinate operation of the motor drive component with other components of the system.

7. A motor control system, comprising:

a plurality of motor drive components each configured to drive a respective motor in rotation for powering a load; and

a plurality of programmable logic components each electrically coupled to a respective motor drive component and mounted on or in the respective motor drive component and configured to perform logic operations for control of the respective motor drive component;

wherein each of the programmable logic components are configured to cooperate with the respective motor drive component for control of the respective motor without command of the remote control component, and wherein at least one of the motor drive components and a respective one of the programmable logic components are disposed in or on a common housing with a motor rotor and motor stator.

8. The system of claim 7, wherein each of the programmable logic components is configured to report data to the remote control component via the network.

9. The system of claim 7, wherein the programmable logic components are configured to exchange data with one another via the network.

10. The system of claim 7, wherein the programmable logic components are configured to monitor and interpret sensor data.

11. The system of claim 10, wherein the sensor data comprises voltage, or current, or power, or temperature, or vibration, or a combination thereof, of the respective motor drive component.

12. The system of claim 7, wherein the programmable logic components are configured to coordinate operation of the respective motor drive component with other components of the system.

13. A motor control system, comprising:

a plurality of motors coupled to a machine system for powering loads in a coordinated manner in the machine system;

a plurality of motor drive components configured to drive respective motors in rotation for powering their respective loads;

at least one programmable logic component electrically coupled to a respective motor drive component and mounted on or in the respective motor drive component and configured to perform logic operations for control of the respective motor drive component; and

a remote control component coupled to the at least one programmable logic component via a network;

wherein the at least one programmable logic component is configured to cooperate with the respective motor drive component for control of the respective motor without command of the remote control component, and to report data to the remote control component via the network, and wherein at least one of the motor drive components and the at least one programmable logic component are disposed in or on a common housing with a motor rotor and motor stator.

14. The system of claim 13, comprising a plurality of programmable logic components coupled to respective motor drive components and mounted on or in the respective motor drive component and configured to perform logic operations for control of the respective motor drive component.

15. The system of claim 14, wherein each of the programmable logic components is configured to report data to the remote control component via the network.

16. The system of claim 14, wherein the programmable logic components are configured to exchange data with one another via the network.

17. The system of claim 14, wherein the programmable logic components are configured to coordinate operation of the respective motor drive component with other components of the machine system.