Product Manual

Operation
3–6 975-0636-01-01 Rev E
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 Conext SW Basic
Settings menu or Inverter Settings menu under Advanced Settings.
The charger can charge batteries when the AC input voltage is within the
minimum and maximum range of 170 to 270 VAC. They are the default minimum
and maximum settings. The minimum range setting can be adjusted from 170 to
220 VAC and the maximum range setting from 240 to 270 VAC. The charger can
also be configured to accept and operate from a wide AC source frequency of
between 40 to 70 Hz. The default range setting is between 45 to 55 Hz. This wide
range allows the Conext SW to charge your batteries even when incoming AC
voltage becomes less than the typical 50 Hz.
Power Share The Conext SW charger uses AC INPUT L to charge the batteries.
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 Conext 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 Conext 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 zero (0) amp, but the
Conext SW will continue to supply power to the loads. The Conext 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 Conext SW is to be avoided.
ConextSWEUROwnersGuide.book Page 6 Thursday, July 23, 2015 3:32 PM