Battery Charger Functions - Xantrex 815-2024 Owner's Manual

Freedom SW 3K2K InvChg Owners Guide.book Page 49 Wednesday, October 9, 2013 1:34 PM
Table 11 Charger Settings Menu Description
Item Description
Sets the system battery chemistry and type: Flooded, AGM, Gel, and Custom.
Batt Type
Selecting Custom displays the Custom Settings item, which allows you to
adjust the settings for each charging stage.
Displays the Custom Battery Settings menu, where you can adjust
Custom
settings specific to your battery type and installation. It is only displayed if
Settings
Custom is selected as the Batt Type.
Selects the system battery capacity in amp hours. Setting the battery capacity to
Batt
0 resets the charging current to its default values. Zero Ah battery capacity
Capacity
implies there is no absorption exit current criteria and absorption only exits
when the absorption timer (default 3hrs, range 1min-8hr) expires.
Sets the percentage of the maximum DC output current that is available to the
Max Chg
charger. The maximum DC output current for different models is:
Rate
• Freedom SW 2012 —100 ADC
• Freedom SW 3012 —150 ADC
• Freedom SW 2024 —50 ADC
• Freedom SW 3024 —75 ADC
If multiple Freedom SWs are charging the same battery bank, set each
inverter's Max Chg Rate to 1/n of the desired charge rate (where n is the
number of inverter/chargers).
Sets the charging method: 3Stage (bulk, absorption, float) or 2StgNoFloat
Charge
(bulk, absorption, no float).
Cycle
Sets the recharging volts to tell the charger to initiate charging when the battery
ReCharge
drains past the value setting.
Volts
Enables or disables automatic charging. When there are two or more power
Auto
sources for charging batteries, Auto ReCharge can be disabled to allow
ReCharge
manual charging of batteries.
97-0019-01-01
Configuring the Freedom SW using the SCP
Table 11 Charger Settings Menu Description
Item Description
Sets the maximum time spent in the absorption stage, before transitioning to float
Absorb
or no float.
Time
NOTE: The Absorb Time setting resets to its default value of 180 minutes when the
Battery Type is changed except when changing to Custom Settings. In Custom
Settings, the Absorb Time setting will not reset to its default value.
Selects the battery temperature charging compensation if a battery temperature
Default
sensor is not installed. In the absence of a battery temperature sensor, the
Batt Temp
charger uses one of three settings: Cold (5 °C/41 °F), Warm (25 °C/77 °F), or
Hot (40 °C/104 °F).

Battery Charger Functions

When AC power is available, the Freedom SW can operate as a battery
charger. Different battery types and chemistries require different charging
voltage levels. Not charging batteries at the required levels can shorten
battery life or damage the batteries. The Freedom SW is configured at the
factory to work with the battery types recommended for inverter
applications. If the default settings do not work for your specific
installation, you can adjust the charge stage settings (as recommended by
the battery manufacturer) on the Custom (Battery) Settings menu (see
page 50).
NOTE: This information is provided for guidance only. Variations in
battery chemistry and site-specific environmental considerations mean
that you should consult your system designer or battery manufacturer for
specific recommendations for appropriate battery voltage and current
settings.
49