{"id":8,"text":"VRF","nick":"AC/DC converters for brakes","description":"The Varixx AC/DC converter is designed to supply electrical power to brakes using a two-stage two-phase rectifier bridge. In the first stage, called \"the call stage\", a high voltage is applied to overcome the brake inertia. Then, a lower voltage is maintained to keep the brake on. The converter is connected in parallel with the electric motor output and requires only an electrical command to activate the brake. The call duration time is adjustable between 0.5 and 5 seconds by means of a trimpot. After this period, the voltage is reduced to keep the brake activated. The converter is durable, with a service life of over two hundred million maneuvers, and is resistant to aggressive and dirty environments, as well as vibrations and impacts. \n\nIt consists of a two-phase rectifier bridge, two diodes, a thyristor, a trigger module, a removable plug-in command module and a heat sink.","files":[{"id":19463,"name":"Catálogo Conversor VRF","ext":"pdf","link":"2024/2/20240226101229799","lang":"PT","role":"catalog"},{"id":19568,"name":"Folder Conversor AC DC para freios VRFA","ext":"pdf","link":"2024/4/20240409092209881","lang":"PT","role":"catalog"},{"id":19569,"name":"Folder Conversor AC DC para Freios VRFB","ext":"pdf","link":"2024/4/20240409092216284","lang":"PT","role":"catalog"},{"id":19589,"name":"Manual - VRF Conversores","ext":"pdf","link":"2024/4/20240412105555301","lang":"PT","role":"manual"},{"id":20598,"name":"VRF site","ext":"png","link":"2024/8/20240812145713403","lang":"PT","role":"certificate"}],"shared":[],"categories":[{"id":51,"text":"AC/DC Converters","sub":[]}],"properties":[{"property":{"id":1,"text":"Voltage","type":1,"pre":"","pos":""},"values":[{"id":109,"text":"Customizable"}]},{"property":{"id":18,"text":"Current","type":1,"pre":"","pos":""},"values":[{"id":98,"text":"50A to 300A"},{"id":101,"text":"Customizable"}]},{"property":{"id":28,"text":"Supply","type":1,"pre":"","pos":""},"values":[{"id":100,"text":"Complete solution"}]}],"advantages":[{"text":"Does not require\nperiodic maintenance","icon":{"id":19590,"name":"01","ext":"png","link":"2024/4/20240412110301356","lang":"PT","role":"general"}},{"text":"Very high\ndurability","icon":{"id":19591,"name":"04","ext":"png","link":"2024/4/20240412110329639","lang":"PT","role":"general"}},{"text":"Does not cause vibrations to\nother components of the\npanel","icon":{"id":19592,"name":"02","ext":"png","link":"2024/4/20240412110346655","lang":"PT","role":"general"}},{"text":"Does not generate overvoltages\nwhen shutting down","icon":{"id":19593,"name":"05","ext":"png","link":"2024/4/20240412110404155","lang":"PT","role":"general"}}],"sections":[{"text":"","type":19,"nickname":"","desc":"The Varixx AC/DC converter has a useful life of more than two hundred million maneuvers, making it ideal for harsh and dirty environments, in addition to offering high immunity against vibrations and impacts.","video":"","image":{},"cards":[],"link_text":""},{"text":"","type":22,"nickname":"","desc":"","video":"","image":{},"cards":[{"text":"No regular maintenance required","desc":"","link":"","image":{"id":20322,"name":"01","ext":"png","link":"2024/8/20240801102045726","lang":"PT","role":"general"},"specs":[]},{"text":"No vibrations to other panel components","desc":"","link":"","image":{"id":20323,"name":"05","ext":"png","link":"2024/8/20240801102103334","lang":"PT","role":"general"},"specs":[]},{"text":"No overvoltage at shutdown","desc":"","link":"","image":{"id":20324,"name":"04","ext":"png","link":"2024/8/20240801102115075","lang":"PT","role":"general"},"specs":[]},{"text":"No noise for PLC or CP","desc":"","link":"","image":{"id":20325,"name":"04_1","ext":"png","link":"2024/8/20240801102142077","lang":"PT","role":"general"},"specs":[]},{"text":"Operates in harsh and dirty environments","desc":"","link":"","image":{"id":20326,"name":"02_1","ext":"png","link":"2024/8/20240801102332210","lang":"PT","role":"general"},"specs":[]},{"text":"No wear","desc":"","link":"","image":{"id":20328,"name":"06_1","ext":"png","link":"2024/8/20240801102419732","lang":"PT","role":"general"},"specs":[]}],"link_text":""}]}