Driving Controls and Diagnostic Methods for Communicating Motors

• US 20170045256A1
• Filed: 10/27/2016
• Published: 02/16/2017
• Est. Priority Date: 11/08/2013
• Status: Active Grant

• Current Assignee: Copeland Comfort Control LP (Emerson Electric Company)
• Original Assignee: Emerson Electric Company
• Inventors: Broker, John F.
• Granted Patent: US 9,939,169 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F24F 11/30 for purposes related to the operation of the system, e.g. for safety or monitoring
• CPC Class Codes: F24F 11/32 Responding to malfunctions or emergencies
• CPC Class Codes: F24F 11/49 ensuring correct operation, e.g. by trial operation or configuration checks
• CPC Class Codes: F24F 11/62 characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
• CPC Class Codes: F24F 11/63 Electronic processing
• CPC Class Codes: F24F 11/77 by controlling the speed of ventilators
• CPC Class Codes: G05B 2219/2614 HVAC, heating, ventillation, climate control
• CPC Class Codes: G05B 23/0208 characterized by the configuration of the monitoring system
• CPC Class Codes: Y02B 30/70 Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

In exemplary embodiments, methods for operating driving controls for communicating motors are disclosed. In an exemplary embodiment, a method generally includes controlling a transmit circuit of the driving control to generate an expected transmit signal for sending to the communicating motor, and detecting, using a transmit sense circuit in the driving control, the actual resulting signal generated by the transmit circuit signal before the actual resulting signal leaves the driving control and is transmitted to the communicating motor. The method also includes analyzing the detected signal to verify whether the transmit circuit in the driving control is working properly, by comparing the expected transmit signal to the detected actual resulting signal. Exemplary methods are also disclosed of analyzing receive circuits of driving controls to verify whether the receive circuits are working properly.

Claims

1. A method of operating a driving control for a communicating motor, the method comprising:

controlling a transmit circuit of the driving control to generate an expected transmit signal for sending to the communicating motor;

detecting, using a transmit sense circuit in the driving control, the actual resulting signal generated by the transmit circuit signal before the actual resulting signal leaves the driving control and is transmitted to the communicating motor; and

analyzing the detected signal to verify whether the transmit circuit in the driving control is working properly, by comparing the expected transmit signal to the detected actual resulting signal.

2. The method of claim 1, wherein the expected transmit signal is a test signal representative of a typical transmit signal.

3. The method of claim 1, further comprising:

receiving, at a receive circuit of the driving control, an expected receive signal;

detecting the actual resulting receive signal relayed by the receive circuit in response to receiving the expected receive signal; and

analyzing the detected signal to verify whether the receive circuit in the driving control is working properly, by comparing the expected receive signal to the detected actual resulting receive signal.

4. The method of claim 1, further comprising:

generating, by a receive drive circuit in the driving control, an expected receive signal;

applying the expected receive signal to a receive circuit of the driving control;

detecting the actual resulting receive signal relayed by the receive circuit in response to applying the expected receive signal; and

analyzing the detected signal to verify whether the receive circuit in the driving control is working properly, by comparing the expected receive signal to the detected actual resulting receive signal.

5. The method of claim 4, wherein the expected receive signal is a test signal representative of a typical receive signal.

6. The method of claim 1, further comprising sensing a current between the transmitting hardware and an output of the driving control to check a connection between the driving control to the communicating motor.

7. The method of claim 1, further comprising sensing a power supply current provided to the communicating motor by a power supply.

8. The method of claim 1, further comprising receiving communicating motor advanced diagnostic information detected by an electronic motor control of the communicating motor.

9. The method of claim 1, further comprising indicating diagnostic information to a user.

10. The method of claim 9, wherein indicating includes indicating using at least one of a display, a user menu, a seven segment display, an LED, and an LCD.

11. The method of claim 1, wherein detecting includes detecting the actual resulting signal at a node between the transmit circuit and an output of the driving control.

12. The method of claim 11, wherein the output of the driving control is coupled to the communicating motor via at least one wire.

13. A method of operating a driving control for a communicating motor, the method comprising:

receiving, at a receive circuit of the driving control, an expected receive signal;

detecting the actual resulting receive signal relayed by the receive circuit in response to receiving the expected receive signal; and

analyzing the detected signal to verify whether the receive circuit in the driving control is working properly, by comparing the expected receive signal to the detected actual resulting receive signal.

14. The method of claim 13, further comprising:

generating, by a receive drive circuit in the driving control, the expected receive signal; and

applying the expected receive signal from the receive drive circuit to the receive circuit of the driving control.

15. The method of claim 14, wherein the expected receive signal is a test signal representative of a typical receive signal.

16. The method of claim 13, further comprising:

sensing a power supply current provided to the communicating motor by a power supply; and

/or

receiving communicating motor advanced diagnostic information detected by an electronic motor control of the communicating motor.

17. The method of claim 13, further comprising indicating diagnostic information to a user.

18. The method of claim 17, wherein indicating includes indicating using at least one of a display, a user menu, a seven segment display, an LED, and an LCD.

19. The method of claim 13, wherein receiving includes receiving the expected receive signal at a node between the receive circuit and an input of the driving control.

20. The method of claim 19, wherein the input of the driving control is coupled to the communicating motor via at least one wire.