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Step 4: Setting Max Charge Current
Max Charge Current is the estimated charge current that the UPS will use to charge the batteries. Obtain the
recommended estimated Max Charge Current based on the specic S3M UPS and battery cabinet model combination
from the chart in Section 6.4.
Float and Boost Voltage: The UPS is factory-set for proper oat (2.27V/cell, 13.62V/battery) and boost (2.35V/cell,
14.1V/battery) voltages.
Celloatvoltage: The oat voltage value can be 2.23~2.30 V/cell. The default value is 2.27 V/cell.
Cell boost voltage: The battery equalized voltage value can be 2.30~2.40 V/cell. The default value is 2.35 V/cell.
Step 5: Setting Aver Changing Duration (min)
Setting the Average Charging Duration in minutes is an estimation of the boost charger time duration to charge new
batteries to 90% capacity at 25°C. Obtain the recommended Average (Aver) Charging Duration (min) number based on
the specic S3M UPS and battery cabinet model combination from the chart in Section 6.4. Note the recommended
battery boost charge durations are estimates only based on new batteries. These numbers may change with the age
of the batteries and the battery ambient temperature. To change the Aver Charging Duration, press directly on the
defaulted 240 value in the display.
• The Average (Aver) charging duration is the battery boost charge time limit. The value can be 1~999 min. The default is
value 240 (4 hours).
EOD Battery Volt: End of discharge voltage is the low voltage cuto of the batteries during a battery mode operation.
The value can be 1.60~1.90. The default value is 1.67V/cell, or 10.02Vdc per battery.
FloatTempCompenCoe:Modies the voltage of compensation after enabling the switch. The value can be
0.001~0.007V/cell/°C. The default value is 0.003V/cell/°C.
Boost Charge Setting: Boost charge can be set to Disable or Enable. The default value is Enable.
No Battery Warning: Keep this alarm enabled if you want the UPS to provide a warning when no batteries are present.
The default value is Alarm.
6. Operation and Conguration of
S3M UPS Models and Battery Cabinets
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