\u00ae<\/sup> equipment is well known to be the most reliable, the easiest to use and install, and the gold standard for crane control.<\/mark><\/h2>\n\n\n\nA.C. squirrel cage induction motors are characterized as being \u201cconstant-speed\u201d when they are run from a typical 50 Hz or 60 Hz power source. If the power source frequency (Hz) can be adjusted, the motor speed can be varied and the actual running speed of the motor and other functions can be controlled. This is where Power Electronics\u00ae<\/sup> International, Inc.\u00ae comes in.<\/strong> \u00a0 Simply put, Micro-Speed\u00ae<\/sup> variable speed crane drives use the existing A.C. (alternating current) and change it into D.C. (direct current) via an electronic technique called PWM (pulse width modulation). The D.C. is then turned back into Variable Frequency Alternating Current (V.F.A.C.). By varying the frequency (Hz), the motor speed can be controlled. And by adding modern state-of-the-art microprocessor computer technology, all types of extra features are added to make your crane, through the Micro-Speed\u00ae<\/sup> drive, have an \u201cintelligence\u201d of its own. Older retrofit cranes and new cranes can be inexpensively converted to have almost \u201cStar Wars\u201d type of robotic control. All with just a standard, off-the-shelf, A.C. motor that already comes on your A.C. bridge\/trolley or hoist. \u00a0<\/p>\n\n\n\nPE\u00ae drives have become the single most productive and cost-effective choice for updating industrial, government, and commercial job sites.<\/mark><\/h2>\n\n\n\n<\/p>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n
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