Outback Power Systems MATE2 System Controller and Display Installation and User Manual - Manual (Page 63)

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What it does: HBX Mode allows control over the use of grid-supplied power based on user-
determined battery voltage and time set points. A user can maximize renewable energy use and
minimize the use of grid-supplied power through careful HBX usage.
The OutBack default values* for HBX (24V system) are the following:
• High voltage—26 volts
• Low voltage—24 volts
• Time for both high and low settings—one hour
When the battery voltage remains at 26 volts for one hour, the FX will disconnect from the
grid and the system will run on battery-supplied power. If the battery voltage falls to 24 volts
for one hour, the FX connects to the grid. During this connected period, the grid-supplied AC
current will power the loads and recharge the batteries unless the user manually shuts off the
FX charging function off. With the charger off, the grid will only power the loads, allowing
renewable energy sources to recharge the batteries. This avoids running the loads from the
batteries and repeatedly charging and discharging them using more expensive utility power.
To shut the charger function off:
• Press the hot key three times until the CHARGER CONTROL screen appears.
• Press the soft key.
* Double these values for a 48V system; divide them by one half for a 12V system. These
values are not temperature compensated.
HBX Mode