14 Freedom SW Owner’s Guide
Freedom Inverter/Charger Operation
Operating Limits for Charger Operation
By default, the maximum charger output current is the rated charger output
current for the particular model. Using the SCP, you can reduce the total
output if you change the maximum charge rate (Max Chg Rate) on the
Freedom SW Basic Settings menu or Inverter Settings menu under
Advanced Settings.
The charger can operate over an AC input range of 95–135 volts AC. This
is the default setting and can be adjusted to 78–145 volts AC as a maximum
range and to 110–120 volts AC as a minimum range. The charger can also
be configured to accept and operate from a wide AC source frequency of 40
to 70 Hz. The default setting is 55 to 65 Hz. This wide range allows the
Freedom SW to charge your batteries even when incoming AC voltage is
less than ideal or a 50 Hz source.
Power Share The Freedom SW charger uses AC input line 1 to charge
the batteries. The Freedom SW charger shares incoming power with AC
loads on line 1 only. The AC loads have priority, which means that the
charger will reduce its output with large AC loads and increase the output
again when the AC load decreases. The regulatory maximum for
continuous AC loads is 80% of the breaker rating that the loads are
connected to.
The Freedom SW senses pass-through current going to the AC load. The
difference between the pass-through (load) and 80% of the Power Share
setting is the current that is available for charging the batteries.
For example, if the AC input of the Freedom SW is from an AC panel with
a 30-amp breaker, the Power Share setting on the SCP should be selected as
30-amp. Based on this, the charger will control the charge current so that
the total current draw is equal to or less than 24 amps in this case. Should
the load current be more than about 24 amps, the charger output will reduce
to 0 amp, but the Freedom SW will continue to supply the loads. The
Freedom SW will continue to pass-through power to the loads, even if the
load current exceeds the Power Share setting. In this case, it will be up to
the user to remove/disconnect loads if tripping the AC input breaker
supplying the Freedom SW is to be avoided.
Freedom SW 3K2K InvChg Owners Guide.book Page 14 Wednesday, October 9, 2013 1:34 PM
