ELECTRICAL ELECTRONIC CRANE DRIVE

Brand	Owner (click to sort)	Address	Description
CRANEMATE	RANDTRONICS	465 CONVENTION WAY REDWOOD CITY CA 94063	ELECTRICAL AND ELECTRONIC CRANE DRIVE CONTROL SYSTEMS FOR CONTROLLING CRANE MOTOR SPEED AND DIRECTION;
CRANEMATE	CLEVELAND MACHINE CONTROLS, INC.	7550 HUB PARKWAY CLEVELAND OH 44125	electrical and electronic crane drive control systems for controlling crane motor speed and direction;CRANEMATE;
	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.