User Guide
Copyright 2003  OutBack Power Systems, Inc.  FX & VFX “E” Series Inverter/Charger System   Installation & Programming Manual 
19009 62
nd
 Ave NE, Arlington WA 98223 USA   900-0027-2    
Tel 360 435 6030 Fax 360 435 6019    
Rev 7.1 06/08/06   Page 39 
MATE SCREENS
BATTERY MENU 
The BATTERY menu section allows the user to check the status of the battery voltage and the battery charging process. Both the 
actual battery voltage and the temperature compensated battery voltage are provided. The battery charging process set points are 
displayed along with the associated timer for the charging process. No adjustments are allowed from this section. To change the battery 
charger’s operation, go the ADVANCED programming section. The values displayed are not defaults.
STATUS/FX/PAGE1----- 
choose category: 
MODES METER BATT PG2 
 ↓ 
STATUS/FX/BATT---P00 
battery 12.2 vdc 
actual 
DOWN STATUS PORT 
 ↓  
STATUS/FX/BATT---P00 
battery 12.2 vdc 
temp compensated 
DOWN UP TOP PORT 
 ↓ 
STATUS/FX/BATT---P00 
absorb 14.4 vdc 
set point 
DOWN UP TOP PORT 
 ↓ 
STATUS/FX/BATT---P00 
absorb 01.0 hrs 
time remaining 
DOWN UP TOP PORT 
 ↓ 
STATUS/FX/BATT---P00 
float 13.6 vdc 
set point 
DOWN UP TOP PORT 
 ↓ 
STATUS/FX/BATT---P00 
float 00.0 hrs 
time remaining 
DOWN UP TOP PORT 
 ↓ 
STATUS/FX/BATT---P00 
refloat 12.5 vdc 
set point 
DOWN UP TOP PORT 
 ↓ 
STATUS/FX/BATT---P00 
equalize 14.4 vdc 
set point 
DOWN UP TOP PORT 
 ↓ 
STATUS/FX/BATT---P00 
equalize 00.0 hrs 
time remaining 
DOWN UP TOP PORT 
 ↓ 
STATUS/FX/BATT---P00 
battery temp 255 
(not in degrees C/F) 
DOWN UP TOP PORT 
 ↓ 
STATUS/FX/BATT------ 
end of battery menu 
 UP TOP STATUS 
MODES    Shows status and allows adjustment of Inverter, AC input, Charger, Aux, and EQ 
METER  Provides the AC voltages and currents of the FX 
<BATT>   Provides the battery voltage and charger set points and timers 
PG2    Displays additional sections – ERRORS, WARNINGS and PG3 
Selecting 
BATT displays the ACTUAL BATTERY voltage measured by the FX. If the RTS battery 
temperature sensor is connected, then the actual battery voltage will probably not equal the 
temperature compensated battery voltage. When charging, the FX uses the temperature 
compensated battery voltage reading (next screen down). 
This menu displays the 
TEMPERATURE COMPENSATED BATTERY VOLTAGE which is used by 
the battery charger for regulation. The Remote Temperature Sensor (RTS) must be connected to the 
Master FX for temperature compensation. If the RTS is connected then this value will be higher than 
the ACTUAL BATTERY VOLTAGE when the battery is hot and will be lower than the actual battery 
voltage when the battery is cold. 
This is the battery charger set point for the absorb stage of the battery charging process. The voltage 
will be held at the 
ABSORB VOLTAGE SET POINT level for the ABSORB TIME LIMIT period that is 
set in the ADVANCED menu section. This value can only be changed in the ADVANCED menu. 
The 
ABSORB TIME REMAINING is the period of time remaining for the absorb cycle. When the FX 
is performing an absorb charge this time value will start counting down once the absorb voltage has 
been reached. When this value reaches 0.0 hrs, the FX will go into SILENT (charger turns off) mode 
until the battery voltage drops to the FLOAT voltage. 
This is the battery charger set point for the float stage of the battery charging process. After finishing 
the absorb charging stage the charger turns off and waits for the battery voltage to drop to the refloat 
voltage set point before the charger begins to float the battery. The voltage will be held at the 
FLOAT 
VOLTAGE SET POINT
 level for the float time period that is programmed in the next screen down. 
The 
FLOAT TIME REMAINING is the amount of time remaining for the float stage of the battery 
charging process. The battery charger does not continuously float the batteries. It instead only floats 
for the FLOAT TIME LIMIT period set in the ADVANCED menu section. Once the time period has 
been met, the charger turns off (called SILENT on the SUMMARY screen). When the FX is in the 
“Float” charging stage, the “float time remaining” value appears and starts to count down. 
The 
REFLOAT SET POINT is the battery voltage at which the battery charger will restart the float 
charging process and hold it there for the FLOAT TIME PERIOD. This setting is compared with the 
BATTERY ACTUAL voltage. 
This is the battery charger set point for the equalize stage of the battery charging process. The 
voltage will be held at the 
EQUALIZE VOLTAGE SET POINT level for the equalize time period that is 
programmed in the ADVANCED menu section. The equalization process must be manually triggered 
while an AC source is connected to the FX’s AC input. Equalize can be triggered by pressing the AC 
IN button four times, pressing the EQ button then selecting START. 
The 
EQUALIZE TIME REMAINING is the amount of time remaining for the equalize stage of the 
battery charging process. Once the EQUALIZE TIME period has been met, the charger turns off. 
When the FX is in the “Equalize” charging stage, the “equalize time remaining” value appears and 
starts to count down. 
The 
BATTERY TEMP is a reference value used by the battery charger when an RTS is connected to 
the FX. A displayed value of 255 means the sensor is not connected or has been damaged. At 
normal room temperatures a value around 130 ± 15 will be shown. As the battery temperature 
increases, the value displayed will get lower and vice versa. 
Selecting TOP returns the user to the top of the STATUS/FX/BATT menu section. Selecting 
STATUS returns to the STATUS screen. 










