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5.4
The UPS in Battery Mode
1)
When the input voltage is not within the acceptable range or there is a mains failure the UPS will enter
battery mode. The batteries will continue to provide an uninterrupted supply of energy to the load.
2)
When the UPS is in battery mode the LCD display panel will display the battery level by 0-25%, 26-50%,
51-75% and 76-100% and the battery voltage. The audible alarm will beep according to the battery
capacity. Normally, the audible alarm will beep once every four seconds. When the battery voltage drops
to low battery voltage level, the audible alarm will beep once per second and the UPS will automatically
shut down. At this time, users could switch off any non-critical loads to disable the shutdown alarm
and prolong the backup time. If no more load can be removed at this time, then all loads should be shut
down as soon as possible to protect the devices or to save data. Otherwise, there is a risk of data loss or
load failure.
3)
When the UPS is in battery mode, overloaded, and the overload time exceeds the duration listed in the
specification, the UPS will enter a fault status. At this time, if the bypass is enabled, the UPS will supply
power to the load via bypass. If the bypass function is disabled, or the input voltage is not within the
bypass acceptable range, the UPS will cutoff power to the load.
5.4.1 LCD Display in Battery Mode
Rack Display
Tower Display
5.5 Turn Off the UPS
Press and hold the “OFF/ENTER “button for at least two seconds.
At this time, if the bypass is enabled and if the mains voltage is within the acceptable range, the UPS will enter
bypass mode supplying power to the loads via bypass. The UPS will also charge the batteries. “BYPASS” will be
displayed in the UPS status window on the LCD display. See Section 5.1.1 “LCD Display in Bypass Mode”.
If instead the bypass is disabled, the UPS will enter standby mode. In this mode the UPS will not supply power to
the load. The UPS will also charge the batteries. See Section 5.1.2 “LCD Display in Standby Mode”.
