Controller for a motor and a method of controlling the motor
First Claim
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1. A pump system coupled to a power source, comprising:
- a pump;
a motor coupled to the pump, the motor operating the pump;
a sensor coupled to the power source, the sensor detecting an electrical characteristic of the power source; and
a controller coupled to the sensor and the motor, the controllerexecuting a fault check,controlling the motor,generating a running average of the sensed electrical characteristic,detecting a change in the sensed electrical characteristic using the generated running average, andsuspending the executing of the fault check when the detected change in the electrical characteristic is outside of a valid characteristic range.
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Abstract
A pump system. The pump system includes a pump, a motor coupled to the pump, a sensor coupled to a power source, and a controller. The motor operates the pump. The sensor detects an electrical characteristic of the power source. The controller executes a fault check, controls the motor, detects a change in the electrical characteristic, and suspends the execution of the fault check for a predetermined period of time when the detected change in the electrical characteristic is outside of a valid characteristic range.
207 Citations
30 Claims
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1. A pump system coupled to a power source, comprising:
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a pump; a motor coupled to the pump, the motor operating the pump; a sensor coupled to the power source, the sensor detecting an electrical characteristic of the power source; and a controller coupled to the sensor and the motor, the controller executing a fault check, controlling the motor, generating a running average of the sensed electrical characteristic, detecting a change in the sensed electrical characteristic using the generated running average, and suspending the executing of the fault check when the detected change in the electrical characteristic is outside of a valid characteristic range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of operating a pump system including a pump, a motor, a sensor, and a controller, the method comprising:
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operating the motor; executing a fault check; determining an electrical characteristic related to a power supplied by a power source coupled to the motor; generating a running average of the sensed electrical characteristic, determining that the electrical characteristic is outside of a valid characteristic range, wherein the determination is based on the generated running average; and suspending execution of the fault check for a predetermined period of time after determining the electrical characteristic is outside the valid characteristic range. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. A controller for a motor, comprising:
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a memory; a sensor configured to sense an electrical characteristic of the motor; and a processor coupled to the memory and the sensor, the processor executing a fault check, controlling the motor, generating a running average of the sensed electrical characteristic, detecting a change in the sensed electrical characteristic using the generated running average, and suspending the executing of the fault check when the detected change in the sensed electrical characteristic is outside of a valid characteristic range. - View Dependent Claims (24, 25, 26, 27)
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28. A pump system coupled to a power source, comprising:
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a pump; a motor coupled to the pump, the motor operating the pump; a sensor coupled to the power source, the sensor detecting an electrical characteristic of the power source; and a controller coupled to the sensor and the motor, the controller executing a fault check, wherein executing the fault check includes generating a derivative based on the sensed electrical characteristic, controlling the motor, detecting a change in the sensed electrical characteristic, and suspending the executing of the fault check when the detected change in the electrical characteristic is outside of a valid characteristic range. - View Dependent Claims (29, 30)
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Specification