Pump controller system and method

CAFC
  • US 7,815,420 B2
  • Filed: 10/31/2007
  • Issued: 10/19/2010
  • Est. Priority Date: 12/08/2003
  • Status: Active Grant
First Claim
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1. A method of detecting a fault condition in a motor of a pump, the method comprising:

  • positioning a temperature sensor on a heat sink of a controller;

    sensing a first temperature value of the heat sink with the temperature sensor;

    generating and storing a fault condition code if the first temperature value is greater than a temperature upper limit;

    shutting down a drive to the motor;

    sensing a second temperature value of the heat sink with the temperature sensor; and

    attempting to restart the drive to the motor if the second temperature value is less than a limp mode temperature limit.

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