APC BK400EI, BK600EI, BK250EI user manual 0PrinciplesofOperation

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4.0PrinciplesofOperation

Below is a block diagram showing the major components of your UPS. These blocks are described on the following pages, and are labelled accordingly.

4.1

4.2

4.3

4.7

4.4

4.5

4.6

Block diagram showing all major components of your UPS.

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Image 15

Contents APC Back-UPS ImportantSafetyInstructions PleasesavethismanualPleasesaveorrecyclethepackagingmaterials TableofContents 1Overview 2Userreplaceablebattery3Optionswitches 0IntroductionTest / Alarm Disable switch 5SurgesuppressionandEMI/RFIfiltering6Remoteinterface 0Safety 0Sécurité!Françias Vorsicht 0Sicherheit!Deutsch¡Atencion ¡Seguridad!Español3Loadtypes 0Installation2Placement 1Receivinginspection5Batterycharging 4ConnectingtotheUtilityConnecting Your Equipment to the UPS Example labels found at system equipment rear panels 8Overloads Test for Proper Operation0PrinciplesofOperation Noise and surge suppression 5Inverter 2Loadtransferswitch3BatteryCharger 4Battery6Transformer Monitoring and control electronics8Operationduringautilityfailure Page 3Audiblealarm ControlsandindicatorsPower I/0 switch Test/Alarm Disable switch on units so equipped4OptionSwitches Option Switch #1Option Switch #2 and #3 Option Switch #4 Option Switch #2 Switch #3 Undervoltage Transfer0UPSmonitoring 2PowerChuteSoftware600VAonlyPage 0Difficulty Françias 0Difficulté0SchwierigkeitDeutsch ¡Cuidado 0Dificultad EspañolMo r 1TroubleshootingChart1TroubleshootingChart 2ReplacingtheBattery 3ObtainingService StoringtheUPS StorageConditions2ExtendedStorage 0RunTimeVersusLoad 10.4Batteryandcharger Specifications10.2TransferCharacteristics 10.3OutputCharacteristicsSurge and noise suppression 10.6OperatingenvironmentandphysicaldimensionsDeclaration of Conformity LimitedWarranty Page Serial number