Configuration and Operation
Sageon III Power System
PM990-8800-00, Rev. 9
4-14
Battery 1 current:Press ENTER to display cell voltages for selected string if Battery
Monitor option is installed and enabled. Press “up arrow” or “down arrow” to scroll
through cells.
Battery 2 current: If additional battery strings are connected, set the number of that string;
a maximum of four battery strings may be connected.
Battery temperature: This screen shows the highest battery temperature when temperature
sensors are installed on the battery string.
If sensors are not installed, Sensor Not Attached will be displayed.
Estimated battery charge:
Battery discharge alarm threshold: Set to the voltage to which the battery string falls
during discharge. When battery voltage reaches this value, an alarm will be generated.
Battery discharge current differential threshold: The allowable battery string discharge
current difference is entered at this screen.
A reasonable value is 20% of the total discharge current. An alarm is generated when the
differential exceeds the value entered.
When two or more battery strings are connected, the value in this screen is read by the
SCU when an AC outage occurs and the battery strings are supplying the load current. A
difference in discharge current is an indication of the state of the battery strings.
Battery over temperature alarm threshold: Set the maximum allowable battery
temperature.
Ampere-hour battery rating: Set the battery string’s A/H rating.
Battery Temperature Compensation
Battery temperature compensation on/off toggle:
Battery temperature compensation (BTC): Enter the temperature compensation
coefficient in mV per degree C per cell in this screen. The allowable range is 0.1 to 6
mV/Cell/°C. If the value is less than 0.1, the display will show Off. See “BTC Notes”
below.
For Liberty 1000 and 2000 batteries, enter 3.6 mV/C/°C (2 mV/C/°F). Normal operating
temperature is 25°C (77°F).
BTC nominal temperature: When battery temperature compensation is active, type the
temperature at which system voltage is NOT corrected. This temperature must be
between 18°C and 27°C. Note that compensation range is 10-35°C. See the Notes below.
Battery 1
12A
Battery 2
11A
Battery Temp
31°C
Estimated Q Bat 1
300Ah
Battery Disch Alarm
47.0V
Disch I Diff
20A
Batt Temp Alarm
50°C
Battery Rating
500Ah
BTC Coeff
3.2 mV/C/°C
BTC Nominal
20°C
Batt Temp Comp
Off
