http___www.indenna.si_mk_1-steklarstvo_preobremenilne-naprave_1.xml
1.1 2.1 3.1 4.1 5.1 6.1 7.1 8.1 9.1 10.1 11.1 12.1 13.1 14.1 15.1 16.1 17.1
Each crane needs to have overload device, which disables over stepping the load for which crane programmed. There are two systems for disabling of overload: - Electro mechanical (activates limit switch), - Electrical (signal from device is processed by processor). SWF has standard delivery of rope hoist with electro mechanical device for overload, device is adjusted on 110% of planned load. Optional on buyer or in special cases it can be installed device NOVA MASTER: - Function crane which operates 24h per day, needs evidence of overloads, number of turning on, since during it works device calculates rest of the life cycle of the crane in accordance with FEM, - If lifting device has installed step-less regulator, NOVA MASTER represent communication model between engine and regulator, - Installation is obligated in case of tandem work of two hoists, - Protection against looseness of ropes is needed, - We wish to see weight of the loan on the display, - We want possibility to work with crane in areas where are allowed smaller weights, - We wish to have control and to keep the track over unexpected events: o Number of events which caused overload, o Number of incidents which caused pressing the STOP button, o Quick and uncontrolled increase of the load (shock overload) – example: turning over of the load.
1.1 2.1 3.1 4.1 5.1 6.1 7.1 8.1 9.1 10.1 11.1 12.1 13.1 14.1 15.1 16.1 17.1
Svaka dizalica mora imati uređaj za preopterećenje, koji ograničava prekoračenje nosivosti za koju je dizalica predviđena. Postoje dva sistema ograničavanja preopterećenja: - elektromehanički (aktivira se prekidač gašenja) - elektronski (signal sa senzora prerađuje procesor) SWF standardno isporučuje užna vitla s elektromehaničkim uređajem za preopterećenje, koji je podešen na 110% projektovanog preopterećenja. Po želji kupca ili u posebnim slučajevima se ugrađuje uređaj Nova Master NOVA MASTER: - funkcijske dizalice koje rade 24h/dan moraju imati evidenciju preopterećenja, broj uključivanja, pošto se izračunava ostatak roka trajanja u skadu s FEM - ako je na pogonu dizanja ugrađena frekventna regulacija, NOVA MASTER je komunikacijski model između motora i regulatora - ugradnja je obavezna pri radu u tandemu s dva mačka - potrebno je osiguranje protiv labavih užadi - želimo imati prikaz težine tereta na display-u - želimo mogućnost rada s dizalicom na području gde su dozvoljene manje težine - želimo imati nadzor i evidenciju nad izvanrednim događajima: - broj događaja koji su prouzročili preopterećenje - broj incidenata zbog kojih je korisnik morao pritisnuti taster STOP - brzo i nekontrolisano povećanje tereta (šok preopterećenje) – primer: prevrtanje tereta