{"id":598,"date":"2012-04-12T11:05:58","date_gmt":"2012-04-12T09:05:58","guid":{"rendered":"http:\/\/www.expo21xx.com\/news\/?p=598"},"modified":"2012-04-18T11:48:15","modified_gmt":"2012-04-18T09:48:15","slug":"new-regenerative-inverter-cuts-energy-and-installation-costs","status":"publish","type":"post","link":"https:\/\/www.expo21xx.com\/news\/new-regenerative-inverter-cuts-energy-and-installation-costs\/","title":{"rendered":"New regenerative inverter cuts energy and installation costs"},"content":{"rendered":"<p>The new FR-A741 inverter range from Mitsubishi Electric has an integrated Regeneration braking function that conserves energy and reduces costs in high torque applications such as hoists, lifts, winders, conveyors, testing machines and centrifugal separators. The regeneration function also makes it possible to achieve smaller, less expensive drive systems and simpler more compact switchgear layouts, saving both cabinet space and cost.<\/p>\n<div id=\"attachment_603\" class=\"wp-caption alignright\" style=\"width: 370px\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-603\" title=\"MITSUBISHI FR-A741\" src=\"http:\/\/www.expo21xx.com\/news\/wp-content\/uploads\/mitsubishi-inverters_fr_a_741.jpg\" alt=\"mitsubishi-inverters\" width=\"370\" height=\"267\" srcset=\"https:\/\/www.expo21xx.com\/news\/wp-content\/uploads\/mitsubishi-inverters_fr_a_741.jpg 370w, https:\/\/www.expo21xx.com\/news\/wp-content\/uploads\/mitsubishi-inverters_fr_a_741-150x108.jpg 150w, https:\/\/www.expo21xx.com\/news\/wp-content\/uploads\/mitsubishi-inverters_fr_a_741-300x216.jpg 300w\" sizes=\"auto, (max-width: 370px) 100vw, 370px\" \/><p class=\"wp-caption-text\">Photo by Mitsubishi Electric Europe B.V.<\/p><\/div>\n<p>The FR-A741 effectively addresses the three main problem areas with <a title=\"motor drive systems\" href=\"http:\/\/www.expo21xx.com\/motion21xx\/control_electronics.htm\" target=\"_blank\">motor drive systems<\/a> in high torque\/high power applications. First; that they usually account for the largest share of total power consumption. Second; that they take up a lot of space. Third; that they have significant heat dissipation requirements.<\/p>\n<p>\u00a0The power regeneration system integrated into the FR-A741 inverter enables the drive to feed back regenerative braking energy into the power grid with minimum losses. This energy can then be used for other purposes, reducing overall power consumption and operating costs substantially. In addition, regeneration technology generates less heat than that produced by conventional braking resistors, which in turn reduces space requirements \u2013 and also power consumption, as no additional cooling devices are required.<br \/>\nWhat the above savings mean in real-world quantitative terms, is that drive solutions using FR-A741 inverters require up to 60% less main circuit wiring, and occupy up to 40% less space than conventional solutions, depending on the output capacity of the frequency inverter.<\/p>\n<p>These economies, combined with the drive\u2019s considerable energy saving capabilities, provide the major benefit of a substantially reduced total cost of ownership (TCO) for users of the FR-A741 range.<\/p>\n<p>\u00a0The efficiencies that combine to produce reduced TCO also mean that the FR-A741 inverter can usually pay for itself within months &#8211; even in some applications with lower power requirements and standard motors. For example, in a Shelf Access System drive application the hardware investment and energy costs of a conventional 22- kW inverter, with a braking unit, braking resistor and AC reactor, amounted to \u20ac 12,839 per year. In comparison, the FR-A741\u00a0 <a title=\"power inverter\" href=\"http:\/\/www.expo21xx.com\/automation21xx\/systems-peripheries.htm\" target=\"_blank\">power inverter<\/a> with power regeneration cost just \u20ac 8,840 per year, including the purchase price of the inverter itself. This represents a saving of 32 % in the first year alone, which is further compounded by additional high savings in power costs in the following years.<\/p>\n<p>\u00a0The FR-A741 has been developed from Mitsubishi Electric\u2019s well-proven and highly reliable FR-A700. As such, it has all the features users expect from a high-end drive, including simple operation and maintenance, operating time monitoring, network support, eco- friendliness, and long-life components that enable the FR-A741 to be specified for a 10-year service life.<\/p>\n<p>\u00a0Apart from operating efficiency and reliability, another major benefit of the innovative features built into the FR-A741 is that they enable the drive to be integrated easily into complex applications. To illustrate this; special crane programming functions are supported for easy integration into hoisting applications, including a special external brake control sequence, functions for load-based speed switching, and four inde-pendent torque thresholds for all four quadrants.<\/p>\n<p>\u00a0Although a high-end drive, the FR-A741 has no special requirements, in respect of power supply disturbances, beyond those of standard frequency inverters.<\/p>\n<p>\u00a0Harmonic mains interference is efficiently suppressed by an integrated AC reactor; and there is also an additional harmonics suppression option available to further minimize network interference.<\/p>\n<p>\u00a0The FR-A741 range currently includes 10 inverters in the power range from 5.5kW to 55kW. All of these units are particularly well suited for tasks involving frequent cyclical acceleration and deceleration, and applications where braking resistors are normally used. They offer full output capacity- without restrictions &#8211; up to an operating frequency of 14.5 kHz.<\/p>\n<p>\u00a0Conforming to international standards, the FR-A741 inverter range can be used with confidence by exporting OEMs, as well as in-house drive users. All inverters in the range bear the CE mark, have UL, cUL and GOST certifications, and meet all the requirements of the EU&#8217;s 73\/23\/EEC Low Voltage Directive and 98\/37\/EC Machinery Directive.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The new FR-A741 inverter range from Mitsubishi Electric has an integrated Regeneration braking function that conserves energy and reduces costs in high torque applications such as hoists, lifts, winders, conveyors, testing machines [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":603,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[58,57],"class_list":["post-598","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-motion-control","tag-drive-system","tag-inverter"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>New regenerative inverter cuts energy and installation costs - 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