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Abstract—Large courier companies rely on many moving parts to ensure they are able to move freight all over the world. Inside their package sorting facilities, there are conveyor systems pushing thousands of packages from one end of the facility to the other in a matter of minutes. The conveyors are connected to gearboxes that are powered by induction motors. In order to control the speed of the motors, to ensure packages are dispersed at a reasonable pace, Variable Frequency Drives (VFDs) are used. It’s a very complex looking system that runs as smooth as a family of ants building their colony. However, when just one member of the family stops working, it disrupts the entire operation.

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