OVERHEAD CRANE DRIVES CONTROLS

Brand	Owner	Address	Description
ULTRA-DRIVE	WHITING CORPORATION	26000 S. Whiting Way Monee IL 60449	overhead crane drives and controls, sold as a unit;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

Included herein is a system and method for controlling a velocity vector of an overhead crane. A motor is attached to the crane and is positioned to move the overhead crane and has an output vector including a rotational direction and a rotational speed. A variable frequency drive is positioned to transfer voltage and current at a frequency to the motor. A processing unit converts the output vector to an amount of voltage and current at a given frequency and can instruct the variable frequency drive to send a frequency to the motor at a frequency substantially equal to the frequency at which the motor is presently rotating. This creates a speed match for the motor reducing spikes during operation of the motor and substantially eliminates open circuit decay. A hydraulic brake operates in connection with the processing unit and the variable frequency drive to slow the crane without driving the motor into the brake.