Operation; Led Indicators; Battery Indicators; Table 1 Battery Indicator Values - Outback Power Systems FXR2012E Operator's Manual

LED Indicators

Battery
Indicators

Battery Indicators

The Battery LED indicators show the approximate battery state. (See IMPORTANT note below.) The
Battery indicators and the Inverter Status indicators are independent. They may accompany each other
depending on conditions. Common combinations are noted on page 16.
 A green indicator (FULL) means the batteries have an adequate charge at that time. It does not always mean
they are full. It may be accompanied by a yellow Status indicator when an AC source is charging.
 A yellow indicator (OK) means the batteries are somewhat discharged.
 A red indicator (LOW) means the batteries are greatly discharged and may require attention. It may be
accompanied by a red Status indicator to indicate a low battery error.
Color 12 Vdc Unit
GREEN 12.5 Vdc or higher
YELLOW 11.5 to 12.4 Vdc
RED 11.4 Vdc or lower
NOTES:
 Gaps in the table (higher-voltage units) are due to the resolution of the inverter's DC meter.
 These voltage settings are not the same as the Low Battery Cut-Out (LBCO) set point. (See page 27.) The Battery indicator
settings cannot be changed.
 Voltages higher than shown in the GREEN row usually show that the batteries are charging.
IMPORTANT:
Due to different system states, battery voltage does not always indicate an accurate state of charge. It is
accurate if batteries have been at rest for several hours at room temperature (25°C or 77°F, or as specified
by the battery manufacturer). If they have any loads, a charging source, or are at another temperature,
their voltage may not reflect their true state. The OutBack FLEXnet DC is a battery monitor that can be
added to the system to provide accurate measurements.
900-0169-01-00 Rev A

Figure 4 LED Indicators

Table 1 Battery Indicator Values
24 Vdc Unit, ± 0.2 Vdc
25.0 Vdc or higher
23.0 to 24.8 Vdc
22.8 Vdc or lower

Operation

AUX Indicator (see page 49)
Status Indicators
48 Vdc Unit, ± 0.4 Vdc
50.0 Vdc or higher
46.0 to 49.6 Vdc
45.6 Vdc or lower
Battery Status
ACCEPTABLE
MARGINAL
LOW
15