Xantrex Freedom SW 815-2024, Руководство пользователя

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Introduction
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 multi-stage 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, i.e.,
as low as 3 volts.
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 and maintaining 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.
Stacking
Supports stacking of two inverter/chargers to increase capacity. This also
requires the installer to select a Master and Slave in order for the inverters
to stack. Two configurations of stacking are supported: Parallel stacking
and Series stacking.
Parallel Stacking
Parallel stacking allows two inverter/chargers to operate in parallel thereby
doubling the capacity in inverter mode. The two inverters communicate
over the network and intelligently share the load and to balance the load
between the two units. The Master Freedom SW broadcasts pulses on the
Xanbus network to synchronize operation between the other paralleled unit.
When AC loads are present, both units produce power, effectively sharing
the load. When Search mode is enabled, only the Master unit produces the
AC output.
Series Stacking
Two units can be configured to generate 120/240 Split-phase power for load
configurations that require both 120 and 240 volts. In this configuration, the
AC source must be split-phase as well.
Freedom SW 3K2K InvChg Owners Guide.book Page 3 Wednesday, October 9, 2013 1:34 PM