We have a new material handling project that calls for the use of two motors on a reversing, chain-driven conveyor belt. The plan calls for two drive motors, one on each end (drive roller) of the conveyor. It also calls for one VFD to supply the power to both motors. I am concerned that the two motors will not be synchronized and this may cause issues with power if there are differences in the gearmotor speeds, gearing in the gearbox or slipping on the belts or if the motors try to work against each other creating artificial load. Is this a proper application for a standard duty VFD? What steps should be taken in this type of application to reduce the risks of problems associated with opposing motors with no feedback?
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