OutBackPower FXR Renewable Series 230V E Model Operator’s Manual
Operation
900-0169-01-00 Rev B 
15
NOTES
: 
IMPORTANT: 
The inverter will draw energy from the batteries when the loads exceed the 
appropriate 
AC Limit
. With sustained loads and no other DC source, the batteries may 
discharge to the Low Battery Cut-Out point. The inverter will shut down with a Low 
Battery error. (See pages 23 and 58.) To prevent the loss of power, load use should be 
planned accordingly.
IMPORTANT: 
A “noisy” or irregular AC source may prevent 
Support
 from working normally. The 
inverter will transfer the power, but will not support the source, charge the batteries, or 
interact with the current in any other way. This problem is more common with 
generators smaller than the wattage of the inverter.
 
A programmable delay time is available which will allow an AC source to stabilize before connection. In the 
MATE3, this menu item is 
Connect Delay
. It is available in both the 
Grid AC Input Mode and Limits
 and the 
Gen AC Input Mode and Limits
 menus, depending on which input is being programmed. 
 
Because the inverter limits the current draw from the AC source, it will reduce the charge rate as necessary 
to support the loads. If the loads equal the appropriate 
AC Limit
 setting, the charge rate will be zero. 
 
If the AC loads 
exceed
 the 
AC Limit
 setting, the Support function is activated. Instead of charging, the 
inverter will take power from the batteries and use it to support the incoming AC current. 
 
The 
Support
 function is not available in any other input mode. 
Grid Tied   
IMPORTANT: 
Selling power to the utility company requires the authorization of the local electric 
jurisdiction. How the utility company accommodates this will depend on their policies 
on the issue. Some may pay for power sold; others may issue credit. Some policies may 
prohibit the use of this mode altogether. Please check with the utility company and 
obtain their permission before using this mode. 
The
 Grid Tied 
mode allows the FXR inverter to become grid-interactive. This means that in addition to 
using power from the utility grid for charging and loads, the inverter can also convert excess battery 
power and sell it to the utility grid. Excess battery power usually comes from renewable energy 
sources, such as PV arrays, hydroelectric turbines, and wind turbines. 
NOTE: 
 This mode is not available in 12-volt FXR models. It does not appear on the system display’s 
list of available input modes. 
The grid-interactive function uses Offset operation. See page 38 for more information. 
BENEFITS
: 
 
Excess power is returned to the utility grid. 
  The inverter will offset the loads with excess renewable energy if it is available from the batteries. 
  If the excess energy is greater than the AC demand (the load size), the excess will be sold to the grid. 










