DRIVE CONTROL ASSEMBLY FOR CONTROLLING A MOTOR

• US 20080116830A1
• Filed: 11/20/2006
• Published: 05/22/2008
• Est. Priority Date: 11/20/2006
• Status: Active Grant

• Current Assignee: Honeywell International Inc.
• Original Assignee: Honeywell International Inc.
• Inventors: Gonzalez, Steven P., Sundberg, Robert L.
• Granted Patent: US 7,800,339 B2
• Time in Patent Office: Days
• US Class Current: 318/446
• CPC Class Codes: B60H 1/00428 electric
• CPC Class Codes: H02P 23/0004 Control strategies in general, e.g. linear type, e.g. P, PI, PID, using robust control
• CPC Class Codes: H02P 27/04 using variable-frequency supply voltage, e.g. inverter or converter supply voltage
• CPC Class Codes: Y02T 10/88 Optimized components or subsystems, e.g. lighting, actively controlled glasses

Abstract

A drive control assembly for a motor including a variable frequency drive module for providing variable speed control for the motor, a bypass module for providing bypass control for the motor, and a switch for switching control for the motor between the variable frequency drive module and the bypass module. The bypass module can provide control for the motor even when the variable frequency drive module is removed from the drive control assembly.

Claims

1. A drive control assembly for a motor comprising:

a variable frequency drive module for providing variable speed control for the motor;

a bypass module for providing bypass control for the motor;

a switch for switching control for the motor between the variable frequency drive module and the bypass module; and

wherein the bypass module provides control for the motor when the switch switches control for the motor to the bypass module, and wherein the bypass module can continue to provide control for the motor even when the variable frequency drive module is removed from the drive control assembly.

2. The drive control assembly of claim 1 wherein the switch has at least a first position and a second position, the first position providing control to the motor from the variable frequency drive module and the second position providing control to the motor from the bypass module.

3. The drive control assembly of claim 2 wherein the variable frequency drive module can be detached from the drive control assembly while the device control assembly still provides power to the motor via the bypass module when the mechanical switch is in the second position.

4. The drive control assembly of claim 1 wherein the bypass control of the bypass module drives the motor at full speed.

5. The drive control assembly of claim 1 wherein the bypass module is mounted to a wall and the variable frequency drive module is mounted to the bypass module.

6. The drive control assembly of claim 1 wherein the bypass module is mounted to a floor and the variable frequency drive module is mounted to the bypass module.

7. The drive control assembly of claim 1 wherein the variable frequency drive module includes a control module that controls the operation of the variable frequency drive module, the control module having a control panel for user input.

8. The drive control assembly of claim 7 wherein the control panel is provided remote from the control module.

9. A drive control assembly for a motor comprising:

a variable frequency drive module for providing variable speed control for the motor;

a bypass module for providing bypass control for the motor;

wherein the bypass module is coupled to a power supply and to a motor drive output;

wherein the variable frequency drive module is electrically and mechanically connected to the bypass module; and

wherein the variable frequency drive module is removable from the drive control assembly without removing the bypass module from the drive control assembly.

10. The drive control assembly of claim 9 wherein the bypass module can provide power to the motor even when the variable frequency drive module is removed.

11. The drive control assembly of claim 10 wherein the bypass module includes a switch having a first position and a second position, the first position providing control for the motor by the variable frequency drive module and the second position providing control for the motor by the bypass module.

12. The drive control assembly of claim 9 wherein the variable frequency drive module includes a control module that controls the operation of the variable frequency drive module, the control module having a control panel with a user interface.

13. The drive control assembly of claim 12 wherein the control panel is provided remote to the control module.

14. The drive control assembly of claim 9 wherein the bypass module is mountable onto a wall.

15. A method of operating a drive control assembly for a motor, the drive control assembly including a variable frequency drive module and a bypass module, the drive control assembly having a switch to switch control for the motor between the variable frequency drive module and the bypass module, the method comprising:

supplying power to the motor via the variable frequency drive module;

switching the switch;

removing the variable frequency drive module from the drive control assembly; and

supplying power to the motor via the bypass module even with the variable frequency drive removed.

16. The method of claim 15 wherein the variable frequency drive module is removed without interrupting power to the motor from the bypass module.

17. The method of claim 15 wherein the bypass module does not need to be removed when the variable frequency drive module is removed.

18. The method of claim 15 wherein the bypass module is mounted to a wall and the variable frequency drive module is mounted to the bypass module.

19. The method of claim 15 further comprising:

attaching the variable frequency drive module to the drive control assembly; and

switching the switch to supply power to the motor from the variable frequency drive module.

20. A drive control assembly for a motor comprising:

a bypass module that provides bypass control for the motor, the bypass module mountable to a wall;

a variable frequency drive module that provides variable speed control for the motor, the variable frequency drive module being mountable to the bypass module;

a switch for switching control for the motor between the variable frequency drive and the bypass module; and

wherein the bypass module can provide control for the motor when the variable frequency drive module is removed from the drive control assembly.