American Power Conversion SYMINIF-PD, SYMSTRF-PD On-Battery Operating Mode, Bypass Operating Mode

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On-Battery Operating Mode

When in the on-battery mode, the Power Array draws DC power from the battery source, converts it to conditioned AC power that is then delivered to the load equipment. SymmetraTM typically enters this mode in the event of a utility power failure. It will also operate in the on-battery mode during a user initiated battery self test.

On-battery operation is limited in duration and is dependent upon the number of battery modules, their state of charge, and the size of the load. SymmetraTM will remain in the on- battery state until either the incoming utility power is restored, or the batteries are depleted. See figure I-5 for a diagram of the power flow when the system is in the on-battery mode.

Fig I-5On-Battery Operating Mode

Bypass Operating Mode

When the SymmetraTM is in the bypass operating mode, the system is bypassed, and utility power is delivered directly to the load. SymmetraTM is equipped with an automatic bypass function to allow the system to automatically go into bypass mode, and a manual maintenance bypass switch to allow a user to manually bypass the system. Either can be used to place the Power Array into bypass operating mode.

The SymmetraTM will automatically transfer to the bypass operating mode when AC utility power is present, but the load cannot be powered by the inverter. Events which may cause this include overloads, or failed non-redundant power mod- ules. The SymmetraTM will automatically return to the on-line mode when the triggering event clears. Figure I-6 illustrates the power flow when the system is in the bypass mode.

Fig I-6Bypass Operating Mode

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Contents Syminif SYMINIF-PD Symstrf SYMSTRF-PD Radio Frequency Interference 990-7770A Revised 10/97Limited Warranty Life Support PolicyTable of Contents Index Introduction Theory of Operation Fig I-2Functional Diagram of a SymmetraTMThank You SymmetraTM Overview Fig I-1MiniFrame and MasterFrameControl/User Interface Power Processing SystemBattery Source TransformerFig I-3Load-Disconnect Operating Mode Load-Disconnect ModeOn-Line Operating Mode Fig I-4On-Line Operating ModeFig I-5On-Battery Operating Mode On-Battery Operating ModeBypass Operating Mode Fig I-6Bypass Operating ModeDefinitions Important InformationSafety Information Symbols Used In This Manual Important Safety InstructionsTech Physical Representation 2An Empty MasterFrame grill covers removed Power Array Frame1A Fully Loaded MiniFrame grill covers removed Battery Module Powerview User InterfacePower Module Louvered Grill CoversRedundant Intelligence Module RIM Maintenance Bypass SwitchMain Intelligence Module MIM Input Circuit BreakerRear View of a Power Array Site Preparation Operating Conditions Space and Weight ConsiderationsTransporting Power Array to Installation Site BTU OutputSite Preparation Unpacking and Installing Frame Initial Inspection Tools Required for SetupStorage of Battery and Power Modules Check For DamageRemove Packing Materials Moving Battery & Power ModulesClean-UP Remove the Frame from the PalletWiring Requirements & Procedures Output Wiring SymmetraTM WiringInput Wiring Repo Switch WiringInput Wiring Specifications Input WiringVoltage Jumper Procedure 4Input Wiring Pathway Input Wiring Procedure3Removal of Input Hardwiring Panels 5Input Hardwiring ConfigurationOutput Wiring Configurations Output WiringOutput Overcurrent Protection 8Output Wiring Configuration for 120V/240V Output Voltages Power Distribution Units Optional Output Wiring InstallationOutput Wiring Procedure Grounding Electrode OptionalRepo Switch Installation Remote Emergency Power Off SwitchRepo Specifications Cable SpecificationsContact Closure Repo Switch Connection Electrical Wiring TestElectrical Wiring Test/Checklist Vdc Repo Switch Connection16Startup Screen 4Input/Output Measured Voltage MultipliersElectrical Requirements and Procedures Setting Up The Power Array Removing Cover Grills Setup of Power ArrayFrame Leveling Procedure 1Removing Cover Grills from Frame2Location of Battery Module Bays Installing the Battery ModulesProcedure for Battery Module Installation 3Battery Alignment Grooves and RunnersInstalling the Power Modules Procedure for Power Module InstallationProcedure for Main Intelligence Module MIM Installation Installing the Main Intelligence Module MIMInstalling the Redundant Intelligence Module RIM 9Location of the MIM and RIMRemote Placement of the PowerView Installing the PowerView InterfaceWall Mounting the PowerView SmartSlotTM Interface Accessories 13PowerView Wall Mounting TemplateInstallation Test Installation Test/Checklist21Power The Load Sequence 19Power Status Screen1SymmetraTM Power Module/Frame Capacities 20Miscellaneous Status Screen23Initiate a Self-Test Sequence 25Power Down the Load Sequence24Return to On-Line Sequence System Setup PowerView Display PowerView Functions PowerView DisplayPhysical Features of the Powerview 1The PowerView InterfaceColor Description PowerView LEDs1Power Array Display LEDs Navigation KeysControl Startup ScreenTop-Level Menu Screen StatusDiagnostics SetupAccessories LoggingConfiguring & Operating the SymmetraTM Introduction Powering the Power Array1Startup Screen Review Status Conditions Powering the LoadsVoltage Status Screen Power Status Screen Battery Status ScreenLoad With Redundancy Status Screen Perform a Self Test Alarm Threshold Status ScreenMiscellaneous Status Screen Alarm Thresholds Selection Screen Configure Shutdown ParametersConfigure Alarms Switching Audible Alarm Beeper OffReview Logging Menu Review Diagnostic InformationDiagnostics Menu Screen Event Log ScreenModule Replacement Technical Support and Obtaining a Replacement Module Module ReplacementModule Failure Alarm Indicators Returning Modules to APCInstalling the Replacement Module Battery Module ReplacementRemoving a Battery Module Replacement Battery Module VerificationRemoving the Power Module Power Module ReplacementReplacement Module Verification Replacement Redundant Intelligene Module Verification Installing the Replacement Main Intelligence ModuleInstalling the Replacement Redundant Intelligence Module Replacement MIM VerificationPowerView Display Messages PowerView Message Meaning Corrective Action Start-Up PowerView Message Meaning Corrective Action General Status Min Runtime restoredFailure PowerView Meaning Corrective Action Message ModuleAlarm ThresholPowerView Meaning Corrective Action Message Bypass FaultPowerView Message Meaning Corrective Action General Fault PowerView Display Messages Index Index SmartSlot accessories Toll free technical support