Xantrex Freedom SW 815-2012, Руководство пользователя

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4 Freedom SW Owner’s Guide
Introduction
Key Features Explained
Built-in Charge Formulas For the unit to perform at the
highest level, the batteries must be charged correctly. The
Freedom SW has optimized algorithms for flooded, gel, and
AGM batteries.
Battery Temperature Sensor Since battery temperature is
a key factor in correct charging, the charging formula must be
adjusted (automatically and in real time) according to the
actual battery temperature to ensure that batteries are fully
charged, but not overcharged. For this reason, a battery
temperature sensor is included with your Freedom SW and
has temperature compensated the charge formula.
Manual Equalization Over a period of time, the cells in a
flooded battery can develop uneven chemical states. This can
result in a weak (undercharged) cell which, in turn, can reduce
the overall capacity of the battery. To improve the life and
performance of a non-sealed, flooded battery, the Freedom
SW’s multistage charging cycle includes a manual equalize
mode that can be used, if recommended by the battery
manufacturer
.
Dead Battery Charging Another feature that the Freedom
SW includes is dead battery charging. The Freedom SW—
unlike many chargers—has the ability to recharge batteries
even if the battery voltage is very low (5 volts for Freedom
SW 2012 / 3012 units and 12 volts for Freedom SW 2024 /
3024 units).
Load Management The Freedom SW has a built-in
transfer relay that connects your inverter output or AC input
from the utility grid or generator to your loads. Because the
usual AC power sources such as campground outlets or small
generators often have limited current availability, having the
capability to manage your AC loads is extremely valuable.
The Freedom SW provides a number of features to facilitate
this:
• The charger is power factor corrected to use AC current
as efficiently as possible. Minimizing the AC current used
by the charger means more current is available for your
AC loads.
• Freedom SW has a power share feature which prioritizes
your AC loads by reducing the charge current in an
attempt to limit the total input current to less than the
breaker setting.
Occasionally, AC input sources have low voltage. To avoid
loading these weak sources any further, the charger
automatically reduces its AC current draw as the AC voltage
approaches the minimum acceptable level.
FSW Owners Guide.book Page 4 Tuesday, August 7, 2018 9:03 AM