Patent ID: 6407523
Filing Date: 2002-06-18
Classification: B65G

Abstract:
A method for use with a motor controller for controlling a motor and an associated conveyor belt to essentially eliminate obstructions on the belt, the controller driving the motor and monitoring motor load, the method comprising the steps of:(a) monitoring motor load; (b) comparing the monitored motor load to a threshold load; (c) where the monitored motor load is equal to or exceeds the threshold load, driving the belt according to a clearing process calculated to clear swarf; (d) wherein the controller is programmed with a predetermined period that has a duration likely, given the clearing process, to clear an obstruction, the method further including the steps of timing a period beginning with the first clearing process and repeating steps (a) through (c) until either the load is less than the threshold load or the timed period is equal to the predetermines period and, when the timed period is equal to the predetermined period, modifying belt control.