Xantrex Technology 815-2024, 815-3024 manual Two-Stage Charging Process, Two-Stage Charging Cycle

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Freedom SW 3K2K InvChg Owners Guide.book Page 61 Wednesday, October 9, 2013 1:34 PM

Battery Charging Reference

Two-Stage Charging Process

Two-stage (or no float) mode differs from an ordinary three-stage charge mode in that it does not continuously maintain the battery at float voltage. Instead, the Freedom SW begins charging the battery in bulk mode whenever the battery voltage drops below the recharge level. While the battery voltage is above the recharge level the inverter’s AC transfer switch continues to pass power through from the utility grid to the loads, but does not actively charge the batteries.

Two-stage mode increases efficiency of utility connected systems by reducing the amount of power consumed by the inverter and batteries compared to when the battery is continuously maintained at Float Voltage. This feature can extend the life of most batteries.

NOTE: If the AC input fails or drops below the lower VAC limit (as set in AC Settings), the complete multi-stage charge cycle (bulk, absorption, float/no float) restarts once the source AC recovers to within the acceptable range. If the batteries are already nearly full, the charge cycle will take little time to complete.

Bulk Stage

Absorption Stage

Battery

 

Voltage

Absorption Voltage

 

 

2-Stage Charge

Recharge

 

Voltage

 

 

Return to

 

Bulk Stage

 

Time

Max Absorb Time - Dflt 3 hrs (adjustable 1 min - 8 hrs )

Battery

Current

Max Charge

Rate

Absorption Exit Current

Threshold = 2% of programmed AH capacity

Time

Figure 33 Two-Stage Charging Cycle

 

 

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Contents Model Numbers Sine Wave Inverter/ChargersPage Product Numbers Exclusion for DocumentationDocument Part Number Date and RevisionAudience About This GuidePurpose ScopeRelated Information Reference Important Safety InstructionsFire and Burn Hazard Precautions When Working With Batteries Regulatory Precautions When Preparing to ChargeViii FCC Information to the UserContents Page Page Page Materials List IntroductionKey Features Explained Key FeaturesStacking Parallel StackingSeries Stacking Generator Assist Stack ChargingBasic Protection Features Xanbus System System ComponentsProduct/Accessory Not Shown Product Number/s Product/Accessory Shown above Product Number/sSystem Components Compartment Side Cooling Fans Front Panel Controls Status LEDsIsometric View of the Front Panel and Fans Freedom SW Front and Side PanelsFreedom SW Start Up Behavior Freedom Inverter/Charger OperationInverter Operation Using the Front Panel To operate in invert mode from the front panelFront Panel Lights Operating Limits for Inverter Operation Operating Limits for Charger Operation Operating the Freedom SW with the SCP Using the Xanbus SCP System Control Panel10 9 8 Func button 9 Down and Up arrow buttonsEnter button SCP Navigation Startup ScreenViewing the SCP Home Screens To display the Select Device menu To display the Setup menu for a deviceSoft Keys Soft Key NavigationFreedom SW System Status Screen Soft Key Navigation Viewing the Firmware Revision Number To view the F/W Rev. from the System Status screenTo view the firmware revision number Using the STBY/ON Fault Clear Button Setting the Time and DateSystem Status Screen Reading the System Status ScreenTo view the Freedom SW Setup menu screen Reading the Freedom SW Device Setup ScreenPressed Simultaneously Device Setup Screen Status InformationLine Label FSW3012 00 Setup ButtonFreedom SW Device Setup Screen Operating States Modes Configuring the Freedom SW using the SCP SCP System Menu Map System Menu MapViewing the Select Device Menu Viewing the System Status ScreenSelecting the Freedom SW from the Select Device Menu Device Setup Menu ScreenFreedom SW Device Setup Menu Selecting and Changing a Configurable Setting To select and change a configurable settingConfigurable Settings Using Search ModeConfiguring the Freedom SW using the SCP To start equalizing the batteries, do one of the following Equalization ProcedureTo select the Basic Settings menu screen Changing Freedom SW Basic Settings915W Basic Settings Setting Defaults and RangesExamples CalculationsChanging Freedom SW Advanced Settings Advanced Settings is highlighted Freedom SW Owner’s Guide To select the Advanced Settings menu screenSelecting Advanced Settings From the Device Setup Screen Appears only when Equalize support is Enabled Menu Map of the Freedom SW Advanced Settings Inverter Settings Description Inverter Settings MenuSearch Delay Lbco Delay SettingsUsing the Low Battery Cut Out Configuring the Freedom SW using the SCPCharger Settings Menu Charger Settings Menu Description Battery Charger FunctionsSettings menu Custom Battery Settings MenuCustom Battery Settings Menu Description Freq ACIn SettingsACIn Settings Menu Description AC1 Lo VoltGenSup Amps GenSup ModeGen Support GEN Support Menu Description and ValuesaStacking Menu Description and Values a Stacking Configuration MenuTo customize the Freedom SW name Setting the Device NameSetting the Device Number If Basic Settings appears instead of Advanced Settings onTo set the Freedom SW device number Restore Defaults command, press Enter Resetting the Freedom SW to Default SettingsUsing the Advanced Features To restore Freedom SW default settingsThree-Stage charging Battery Charging ReferenceBattery Types Charge Algorithm StagesBulk Stage Three-Stage Battery Charging CycleFloat Stage Absorption StageTwo-Stage Charging Cycle Two-Stage Charging ProcessBattery Charging Reference Equalize Charging Equalize ChargingBattery Charging Reference General Troubleshooting Guidelines TroubleshootingMotor Loads Problem LoadsInverter Applications Resistive LoadsFault Types Fault type BehaviorFault Types And Behaviors Troubleshooting the Freedom SW via the SCP Fault TypesFaults Types and Behaviors To view a warning list To view a fault listAC Output over Fault MessagesAC Output under VoltageImmediate F44 Battery OverTemperature F47 DC Under VoltageFault F48 DC Under VoltageF49 DC Over Voltage Unreadable F57 FET1 Over TemperatureF58 FET2 Over Temperature F63 Power Board TempF70 Unique Dev# Needed Temperature F69 External Sync FailedF64 AC overload F68 Transformer OverF75 Master Inverter Lost F85 PowerBoard OverGenSup Mode setting W48 DC under voltageW69 AGS not connected Physical Specifications SpecificationsInverter Specifications Freedom SW Charger SpecificationsRegulatory Approvals All ModelsPage Schneider Electric Solar Inverters USA Inc97-0019-01-01

815-2024, 815-2012, 815-3012, 815-3024 specifications

Xantrex Technology is a leading manufacturer of advanced power electronics, providing high-quality inverter solutions that cater to diverse applications. Among its impressive portfolio, the Xantrex models 815-3024, 815-3012, 815-2012, and 815-2024 stand out for their reliability and innovative features.

The Xantrex 815-3024 is a robust 3000W inverter designed for 24V systems. Its key feature is the True Sine Wave output, which delivers clean and stable power, making it suitable for sensitive electronics and appliances. It also incorporates an advanced inverter technology that optimizes efficiency and performance. Its compact design allows for easy installation in various setups, such as RVs, boats, and off-grid systems.

Similarly, the Xantrex 815-3012 model caters to 12V applications and offers a continuous output power of 3000W. This inverter excels at providing high surge capability, helping to start up demanding loads such as refrigerators and power tools. The 815-3012 also features an LCD display, which provides real-time data on power consumption, battery voltage, and inverter status, enhancing user experience and enabling proactive management of power usage.

The Xantrex 815-2012 is a 2000W inverter specifically designed for 12V systems. It shares many technological advancements with its higher-powered counterparts, including the True Sine Wave output. This makes it an ideal choice for users seeking a reliable and efficient power source for smaller loads. Additionally, the model includes built-in protection features such as overload, short circuit, and over-temperature safety measures, ensuring longevity and safe operation.

Lastly, the Xantrex 815-2024 offers similar capabilities but is tailored for 24V systems with a power output of 2000W. It is well-suited for applications where moderate power demand exists, such as solar setups and battery-based power solutions. Its compact form factor and lightweight design make it particularly appealing for mobile and temporary installations.

All of these models feature technologies that promote energy efficiency, including automatic low voltage shutdown and smart cooling systems. They boast protective features that ensure the safety and durability of the devices connected to them. With their blend of advanced technologies, reliable performance, and user-friendly interfaces, Xantrex’s 815 Series inverters provide an excellent solution for anyone in need of dependable power conversion.
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