Outback Power Systems GS8048 manual Example of Parallel Stacking Arrangement Three Inverters

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Operation

In parallel stacking, two or more inverters are stacked to create a single, common 120/240 Vac bus.

The master provides the primary output. The slaves are connected to the same output and assist the master.

The slave inverters can be programmed to activate on demand, reducing idle-power consumption. They will remain off until the loads exceed a certain threshold.

A two-inverter system can continuously power 16 kVA of loads.

Up to ten inverters may be installed in a parallel arrangement.

24 kVA

120/240 Vac

8 kVA	8 kVA	8 kVA
120/240 Vac	120/240 Vac	120/240 Vac

Figure 7 Example of Parallel Stacking Arrangement (Three Inverters)

900-0020-01-00 Rev A

27

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Contents GS8048 Radian Series Inverter/ChargerTrademarks Audience Symbols UsedDefinitions Terms and DefinitionsImportant Safety Instructions General SafetyTable of Contents List of Figures Table of ContentsList of Tables Introduction MATE3 System Display and Controller Commissioning Pre-startup ProceduresFunctional Test StartupFirmware Updates Powering DownAdding New Devices CommissioningGenerator OperationInput Modes Operation SupportGrid Tied UPS Uninterruptible Power Supply Mini Grid BackupOperation Inverting FunctionsInput SearchAC Source Acceptance AC Current SettingsTransfer Offset Charging Steps Battery ChargingNo Charging Bulk StageCharging Stages Over Time1 OffsetSilent Float TimerFloat Stage Repeated SilentNew Absorption Stage Absorption TimerNew Charging Cycle Equalization Battery Temperature CompensationExamples OutBack HUB4 and MATE3 Multiple-Inverter Installations StackingExample of Parallel Stacking Arrangement Three Inverters Power Save Levels Auxiliary Terminals Operation Operation System Display-Based Functions High Battery TransferAdvanced Generator Start AGS Grid Use TimeTroubleshooting Symptom Possible Cause Possible Remedy TroubleshootingBasic Troubleshooting Symptom Possible Cause Possible Remedy TroubleshootingTroubleshooting Hot or neutral Not be bonded Inverter may be behaving correctly Inverter output is being fed Troubleshooting Error Troubleshooting Message Causes Possible Remedy Error MessagesAC Freq Too High Message Definition Possible RemedyCapacitors Voltage Maximum Disconnect MessagesSell Status Definition Sell StatusSell Status Messages Troubleshooting Specifications for Model GS8048 SpecificationsElectrical Specifications for Model GS8048 Value Mechanical Specifications for Model GS8048Regulatory Specifications Environmental SpecificationsSpecifications Environmental Specifications for All Models ValueFirmware Revision Default Settings and RangesGS8048 Inverter Settings Field Default Minimum Maximum Product Registration OutBack Power TechnologiesProduct Registration Extended WarrantyYear Limited Warranty for Radian Products WarrantyTroubleshooting How to Arrange for Warranty ServiceReturn Material Authorization RMA WarrantyReturning Product to OutBack Out of WarrantyThis page Intentionally Left Blank Index Year WarrantyInput Modes 11, 17, 20, 22 IndexThis page Intentionally Left Blank