American Power Conversion PX Modes of Operation, Load-Disconnect Mode, On-Line Operating Mode

Page 10

Modes of Operation

The Power Array functions in one of four modes of operation depending on user commands, the status of the AC mains (utility) voltage, and the condition of the SymmetraTM itself. The four modes are Load-Disconnect, On-Line, On-Battery, and Bypass. The PowerView reports the operating mode.

Load-Disconnect Mode

In the load-disconnect mode, incoming mains (utility) power is present and the system is internally powered, but no output power is delivered to the load equipment. The SymmetraTM enters the load-disconnect mode at the initial power up when the system enable switch is switched to the“on”position. When the system is operating on-line, and the “load off” command is entered in the PowerView interface, it returns to the load- disconnect mode. Figure I-3 illustrates power flow when the system is operating in the load-disconnect mode.

System Control

and Interface

 

Powerview User

Communication

Interface

Card and

On-Line Operating Mode

The on-line operating mode is the “normal”operating mode. When the system is in the on-line operating mode, the Power Array receives AC mains (utility) power and delivers condi- tioned power to the load equipment. The Power Array main- tains proper battery charge, regulates the output voltage and frequency, and protects the load from surges and electrical noise. SymmetraTM will operate in this mode if it has been commanded to turn the load on, the incoming utility voltage is present and functioning properly, and there are no prevent- ing abnormal conditions such as an overload. See figure I-4 for a diagram of the power flow when the system is in the on- line operating mode.

System Control

and Interface

 

Powerview User

Communication

Interface

Card and

 

SmartSlotsTM

SmartSlotsTM

Communication

Power Processing

Communication

Battery Source

Communication

Power Processing

Charge

Communication

Battery Source

 

Charge

 

Bypass

AC

Switch

 

IN

 

AC

OUT

 

Bypass

 

AC

Switch

AC

 

IN

 

OUT

Fig I-3 Load-Disconnect Operating Mode

Fig I-4 On-Line Operating Mode

iii

Image 10
Contents Page Toll-Free Numbers Main Tech Support+353 91 0660Important Safety Instructions Radio Frequency InterferenceLimited Warranty Life Support PolicyTable of Contents Index Introduction MiniFrame MasterFrameThank You SymmetraTM Overview Power Processing Battery SourceFig I-2 Functional Diagram of a SymmetraTM Theory of OperationBattery Source Power Processing SystemControl/User Interface On-Line Operating Mode Load-Disconnect ModeModes of Operation On-Battery Operating Mode Bypass Operating ModeDefinitions Important InformationPage Safety Information Important Safety InformationSymbols Used In This Manual Safety Earth Ground Indicates the pri- mary safety groundSafety-2 Physical Representation Module Power Array FrameFive Four Power Battery BaysBattery Module Powerview User InterfacePower Module Power ModuleRedundant 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 Move the Frame Dimensions WeightInitial Inspection Check For DamageRemove Packing Materials Moving Battery & Power ModulesRemove the Frame from the Pallet Wiring Requirements & Procedures Output Wiring SymmetraTM WiringInput Wiring Repo Switch WiringInput Wiring Specifications Input WiringInput Wiring Procedures Ground Wiring Terminal Block Ground Wiring and Input Wiring Terminal BlocksOutput Wiring Output Wiring InstallationRepo Switch Installation Remote Emergency Power Off SwitchRepo Specifications Cable SpecificationsContact Closure Repo Switch Connection Electrical Wiring TestElectrical Wiring Test/Checklist Vdc Repo Switch ConnectionRecord the PowerView reported 11 Startup ScreenSetting Up The Power Array Removing Grill Covers Setup of Power ArrayFrame Leveling Procedure PositionsClear all battery module bays of any debris Installing the Battery ModulesProcedure for Battery Module Installation Battery Module Location of Battery Module BaysInstalling the Power Modules Procedure for Power Module InstallationMain Intelligence Module Installing the Main Intelligence Module MIMInstalling the Redundant Intelligence Module RIM 10 Location of the MIM and RIMWall Mounting the PowerView Installing the PowerView InterfaceRemote Placement of the PowerView Remove the grill cover from the top level of the frameSmartSlotTM Interface Accessories Installation Test Installation Test/ChecklistSymmetraTM Power Module/Frame Capacities Power Reported21 Miscellaneous Status Screen 22 Power The Load Sequence 25 Return to On-Line Mode System Setup PowerView Display PowerView Functions Physical Features of the PowerviewPowerView Interface Esc PowerView LED IndicatorsSymbol Name Function of Key On Key Navigation KeysControl Startup ScreenTop-Level Menu Screen StatusDiagnostics SetupAccessories LoggingConfiguring & Operating the SymmetraTM Powering the Power Array IntroductionVoltage Status Screen Powering the LoadsReview Status Conditions Load With No Redundancy Status ScreenPower Status Screen Load With Redundancy Status Screen Battery Status ScreenFrequency Status Screen Perform a Self Test Alarm Threshold Status Screen11 Sample Alarm Threshold Status Screen Miscellaneous Status ScreenSwitching Audible Alarm Beeper Off Configure AlarmsAlarm Thresholds Selection Screen Shutdown Parameter Selection ScreenReview Logging Menu Review Diagnostic InformationDiagnostics Menu Screen Event Log ScreenModule Replacement Module Failure Alarm Indicators Module ReplacementReturning Modules to APC Installing the Replacement Module Battery Module ReplacementReplacement Battery Module Verification Replacement Module Verification Power Module ReplacementRefer to for the power module installation proce- dure Replacement MIM Verification Redundant Intelligence Module ReplacementInstalling the Replacement Main Intelligence Module Installing the Replacement Redundant Intelligence ModulePowerView Interface Messages MIM detects the RIM before PowerView Meaning Corrective Action Message Start-UpRIM is awake Load is No Longer above PowerView Meaning Corrective Action Message# of batteries decreased Has been corrected either becauseSelect zero Setup-Alarms-RedundancyThreshold. Startup-Setup-Alarms Redundancy-selectBattery modules are being Because of a power failure, wait forSupport. See inside front cover PowerView Display Messages Index Electro-static discharge, 2-1 Emergency power off Configuring PowerView Threshold statusDescription Checklist Input Output Overview Repo ConfiguringDescription, 1-4 Installation Ordering information Frame, 2-1 ModulesReplacement Modules & Accessories English Text