Global 5120 - Limiter Converter

GlobalPowerTechnologies  4-1
5120
4 Limiter Converter
4.1.1 Product Application
Thismanualcontainsinformationpertainingtothe220WattL/Cserieslimiterconverterwhich
isdesignedforusewitha5120requiring12or24Voltoutputs.
4.1.2 Product Description
The 220 Watt L/C consists of two separate circuits operating together.  The first is a shunt
typevoltagelimiterthatregulatestheoutputofthegenerator.ThesecondcircuitisaDCto
DCconverterthatswitchestheinputvoltagetoadifferentoutputvoltage.SeeFigure24for
physicaldescription.
4.1.3 ProductSpecications
OverloadProtectiontriggerswhentheloaddrawsexcesscurrent.Theresultisaproportional
dropinoutputvoltage(foldbackcurrentlimiting).
ShortCircuitProtectionisdesignedintothe220WattL/C.A15secondshortcircuitwillnot
damagethegeneratororthelimiterconverter.Ifextendedshortcircuitdurationsareanticipat-
ed,anin-linefuseshouldbeplacedontheoutputofthelimiterconverter.Use10Ampslow
blowfor5120-12anduse5Ampslowblowfor5120-24configuration.
ReverseCurrentProtectionisstandardonall220WattLimiterConverters.Adiodeinseries
withtheoutputpreventscurrentfromflowingbackthroughtheconverterwhenthegenerator
isshutoff.
VoltageSensingRelayprovidesasetofcontactstoindicateanalarmconditionwhentheoutput
voltagedropsbelowapresetminimum.
Figure 24220LimiterConverterPhysicalDescription