pplysymmetryduringstart-up.Moreover,thesoftstartcircuitmonitorsthesupplyvoltages.If,duringoperation,asupplyvoltagefallsbelowaminimumofapprox.13.5V(e.g.duetoexcessivelylongorthincables,aweakpowersupplyorhighloads)orasupplyvoltagerisesaboveamaximumofapprox.17V,thenthesoftstartcircuitdisconnectsthescanheadfromthepowersupply.Shortlythereafter,thesoftstartcircuitmakesthreeattemptstorestartthescanhead.urswithinafewsecondsifthesupplyvoltageshavereturned,withinthistime,topermissiblelevels.Otherwise,thescanheadwillremaindisconnectedfromthepowersupplythesupplyvoltageproblemmustberesolvedandthescanheadswitchedoffandthenrestarted.essfulstart-up,thesoftstartcircuit’sinternalcounter(numberofattemptednewstarts)isresettozero.hurrySCAN®20,digital,1070nm-1085nm10Rev.2.6e2ThehurrySCAN®20–PrincipleofOperation
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