Multi-alarm monitoring and protection system

• US 6,714,880 B2
• Filed: 05/13/2002
• Issued: 03/30/2004
• Est. Priority Date: 05/13/2002
• Status: Active Grant

• Current Assignee: Rockwell Automation, Inc.
• Original Assignee: Entek IRD International Corp. (Rockwell Automation, Inc.)
• Inventors: Carle, Patrick F., Kramb, Kevin E., Trumpy, David P.
• Primary Examiner(s): Barlow, John
• Assistant Examiner(s): Washburn, Douglas N
• Application Number:
  US10/144,297
• Publication Number:
  US 20030212511A1
• Time in Patent Office: 687 Days
• Field of Search: 340/853.2, 731/172, 731/173, 731/181, 700/9, 700/78, 700/169, 700/259, 702/33, 702/41, 702/42, 702/54, 702/56, 702/57, 702/66, 702/71, 702/72, 702/73, 702/103, 702/105, 702/106, 702/108, 702/113, 702/114, 702/115, 702/126, 702/129, 702/127, 702/141, 702/145, 702/146, 702/147, 702/148, 702/151, 702/130, 702/142, 702/150, 702/163, 702/168
• US Class Current: 702/56
• CPC Class Codes: G01H 1/003 of rotating machines G01H1/10 takes precedence

Abstract

A monitoring and protection system includes monitoring modules configurable with multiple alarm, alert or response parameters. The configuration parameters may be user set to allow for adaptation of the monitoring modules to specific applications. In one implementation, a vibration monitor receives signals from sensors or transducers and derives vibrational data based upon the received signals. The alarm configuration may include multiple levels or limits for various speed or frequency bands.

Claims

1. A system for monitoring dynamic conditions of a rotary machine system, the monitoring system comprising:

a sensor for detecting a dynamic condition of the rotary machine system and for generating a signal representative thereof;

a monitor configured to receive and process the signal from the sensor, the monitor including a memory circuit configured to store a plurality of user configurable alarms, and at least one processor, the monitor being configured to generate processed data from the signal and to compare the processed data to the configurable alarms and to generate output signals based upon the comparison wherein the monitor is configured to change a state of a relay based upon the comparison, wherein the relay is separate from the monitor and disposed local to the monitor.

2. The system of claim 1, wherein the monitor is configured to derive vibrational data from the sensed signal, and wherein the processed data includes at least a portion of the vibrational data.

3. The system of claim 2, wherein the user configurable alarms include vibration levels within a plurality of frequency bands.

4. The system of claim 3, wherein the monitor includes at least two processors including a dedicated processor for performing computations, and wherein the vibrational data is computed by the dedicated processor.

5. The system of claim 2, wherein the user configurable alarms include an alarm based upon a combination of vibration levels within a plurality of frequency bands.

6. The system of claim 1, wherein the monitor includes the controlled relay.

7. The system of claim 1, wherein the relay is configured to interrupt power from a portion of the machine system.

8. The system of claim 1, wherein the monitor is configured to receive data from a remote device, and wherein the relay is controlled at least partially based upon data received from the remote device.

9. The system of claim 1, wherein the monitor is configured to transmit the output signals to a remote device.

10. The system of claim 9, wherein the output signals are transmitted to the remote device in accordance with an open industrial data exchange protocol.

11. The system of claim 1, wherein the alarms are based upon a plurality of levels of a single parameter.

12. The system of claim 1, wherein configuration data for the alarms is stored in a separate device coupled to the monitor.

13. The system of claim 12 wherein the separate device is a gateway configured to transmit data to remote devices.

14. A system for monitoring dynamic conditions of a rotary machine system, the monitoring system comprising:

a sensor for detecting a dynamic condition of the rotary machine system and for generating a signal representative thereof;

a monitor configured to receive and process the signal from the sensor, the monitor including a memory circuit configured to store a plurality of user configurable alarms, and at least one processor, the monitor being configured to derive vibrational data from the sensed signal and to compare the vibrational data to the configurable alarms and to generate output signals based upon the comparison, wherein the user configurable alarms include an alarm based upon a combination of vibration levels within a plurality of frequency bands.

15. The system of claim 14, wherein the user configurable alarms include vibration levels within a plurality of frequency bands.

16. The system of claim 14, wherein the monitor includes at least two processors including a dedicated processor for performing computations, and wherein the vibrational data is computed by the dedicated processor.

17. The system of claim 14, wherein the monitor is configured to change a state of a relay based upon the comparison.

18. The system of claim 17, wherein the monitor includes the controlled relay.

19. The system of claim 17, the relay is separate from the monitor and disposed local to the monitor.

20. The system of claim 17, wherein the relay is configured to interrupt power from a portion of the machine system.

21. The system of claim 17, wherein the monitor is configured to receive data from a remote device, and wherein the relay is controlled at least partially based upon data received from the remote device.

22. A modular vibration monitor comprising:

a memory circuit configured to store a plurality of user configurable alarms;

at least one processor configured to derive vibrational data from a sensed signal from a machine system and to compare the vibrational data to the configurable alarms and to generate output signals based upon the comparison; and

a relay controlled by the at least one processor based upon the comparison.

23. The monitor of claim 22, wherein the at least one processor is configured to change an operative state of the relay to interrupt power to a component of the machine system based upon the comparison.

24. The monitor of claim 22, wherein the user configurable alarms include vibration levels within a plurality of frequency bands.

25. The monitor of claim 22, wherein the monitor includes at least two processors including a dedicated processor for performing computations, and wherein the vibrational data is computed by the dedicated processor.

26. The system of claim 22, wherein the user configurable alarms include an alarm based upon a combination of vibration levels within a plurality of frequency bands.

27. A system for monitoring dynamic conditions of a rotary machine system, the monitoring system comprising:

a sensor for detecting a dynamic condition of the rotary machine system and for generating a signal representative thereof;

a monitor configured to receive and process the signal from the sensor, the monitor including a memory circuit configured to store a plurality of user configurable alarms, and at least one processor, the monitor being configured to generate processed data from the signal and to compare the processed data to the configurable alarms and to generate output signals based upon the comparison wherein the monitor is configured to change a state of a relay based upon the comparison, wherein the relay is separate from the monitor and disposed local to the monitor wherein the monitor is configured to transmit the output signals to a remote device.

28. The system of claim 27, wherein the output signals are transmitted to the remote device in accordance with an open industrial data exchange protocol.

29. The system of claim 27, wherein the monitor is configured to derive vibrational data from the sensed signal, and wherein the processed data includes at least a portion of the vibrational data.

30. The system of claim 29, wherein the user configurable alarms include vibration levels within a plurality of frequency bands.

31. A system for monitoring dynamic conditions of a rotary machine system, the monitoring system comprising:

a sensor for detecting a dynamic condition of the rotary machine system and for generating a signal representative thereof;

a monitor configured to receive and process the signal from the sensor, the monitor including a memory circuit configured to store a plurality of user configurable alarms, and at least one processor, the monitor being configured to derive vibrational data from the sensed signal and to compare the vibrational data to the configurable alarms and to generate output signals based upon the comparison,

wherein the user configurable alarms include an alarm based upon a combination of vibration levels within a plurality of frequency bands, and

wherein the monitor is configured to change a state of a relay based upon the comparison wherein the relay is separate from the monitor and disposed local to the monitor.

32. The system of claim wherein the monitor is configured to receive data from a remote device, and wherein the relay is controlled at least partially based upon data received from the remote device.

33. A modular vibration monitor comprising:

a memory circuit configured to store a plurality of user configurable alarms;

at least one processor configured to derive vibrational data from a sensed signal from a machine system and to compare the vibrational data to the configurable alarms and to generate output signals based upon the comparison; and

a relay controlled by the at least one processor based upon the comparison; and

wherein the user configurable alarms include an alarm based upon a combination of vibration levels within a plurality of frequency bands.

34. The monitor of claim 33, further comprising a relay controlled by the at least one processor based upon the comparison.