Xantrex Freedom SW Series, Руководство пользователя

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Introduction
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.
Stack Charging
Two Freedom SWs synchronize charging stages to ensure
efficient charging of the battery bank. When a single unit
transitions from bulk to absorption so do all other units. In
absorption, all units must complete the absorption stage
before transitioning to the next stage. Note that units do not
load share when charging except during the bulk stage. The
Freedom SWs stop sharing charge current just before
completing the bulk stage. The units do not share charge
current during the absorption and float stages.
Each unit charges batteries based on the Max Charge Rate
setting and active internal (temperature-based) deratings.
If equalization is enabled on one or more devices capable of
equalization charging, only those devices perform an equalize
cycle after absorption. Other devices transition to float (if
three-stage charging is selected) or transition to AC pass-
through (if two-stage charging is selected).
FSW Owners Guide.book Page 5 Tuesday, August 7, 2018 9:03 AM