American Power Conversion 400, 600, 250 user manual Principles of operation

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4.0 Principles of operation

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

Block diagram showing all major components of your UPS.

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Contents Back-UPS Please save this manual Important safety instructionsTable of contents Remote interface IntroductionOverview Surge suppression and EMI/RFI filteringEnglish SafetySécurité Deutsch Sicherheit¡ Seguridad Load types InstallationPlacement Receiving inspectionBattery charging Connecting to the utilityConnecting your equipment to the UPS Example labels found at system equipment rear panels Test for proper operation Overloads Principles of operation Noise and surge suppression Inverter Load transfer switchBattery charger BatteryTransformer Monitoring and control electronicsOperation during a utility failure Page17 Audible alarm Controls and indicatorsPower I/0 switch Test switch on units so equippedPowerChute Software UPS monitoringInterface Kits Computer interface port Difficulty Difficulté Vorsicht SchwierigkeitDificultad KmjSgWh KjnndSgW TRpnW RTodji oj oRfW Troubleshooting chartPage26 Replacing the battery Obtaining Service Storing the UPS Storage conditionsExtended storage Run time versus load Specifications Declaration of Conformity Life support policy Limited Warranty∗ Mailing