| CPC H02H 7/08 (2013.01) [H02H 1/0007 (2013.01)] | 16 Claims |
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1. A control method, comprising:
monitoring a measured current level drawn from an electrical motor supplying power to mechanical components under varying operating conditions;
determining whether the measured current level exceeds a maximum acceptable current level;
wherein if the measured current level does not exceed the maximum acceptable current level, continuing monitoring the measured current level;
wherein if the measured current level exceeds the maximum acceptable current level,
deactivating current to the electrical motor,
initiating an increment counter circuit,
continuously evaluating the increment counter circuit to determine whether a predetermined number of increment counter cycles is reached,
wherein if the predetermined number of increment counter cycles is not reached,
adding a predetermined time delay,
activating the electrical motor,
wherein if the predetermined number of increment counter cycles is reached,
indicating a fault condition where the measured current level remains above the maximum acceptable current level,
deactivating the electrical motor; and
wherein the fault condition indicates an overload condition resulting from at least one of a fault in the electrical motor or potential jamming of mechanical components powered by the electrical motor.
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