User Manual
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3-5-5. Battery mode operation
1) When the UPS is in Battery mode, the buzzer will beep according to the battery capacity. Normally,
the buzzer will beep once every 4 seconds. When the battery voltage drops to the alarm level, the buzzer
will beep once per second, and the UPS will soon 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 de-
vices or to save data. Otherwise, there is a risk of data loss or load failure.
2) In Battery mode, if the buzzer sounds annoying, the user can enter “Control ˗>Mute” on the LCD to silence
it. Please refer to the section on “LCD operation”.
3) The backup time of the long-run model depends on the external battery capacity.
4) The backup time may change under different environment temperature and load type.
5) The maximum backup time is limited by default to 16.5 hours. After discharging for 16.5 hours the UPS
will automatically shut down to protect the battery. The default time can be modified through the LCD
panel or the communication port.
3-5-6. Test the batteries
1) To check the battery status or the performance when the UPS is running in Line / Converter mode, enter
“Control -> Batt Test” to instruct the UPS to perform a battery test. Please refer to the section on “LCD
operation”.
2) The UPS can also be instructed to perform a battery test through monitoring software.
3) If the UPS is in battery testing, “Battery test mode” will be displayed on the LCD, the buzzer indication
will be the same as in battery mode, but both the line LED and the battery LED will be lit.
3-5-7. Turn off the UPS with utility power supply in Line mode
1) With the LCD on the home page, press the “OFF/ESC” button. The LCD will show a prompt page of
“Turn Off”. Move the arrow to “Yes” using the up or down button, then press “ON/ENTER”. The UPS
will turn off and go to bypass mode with beeping once. Alternatively, to turn off the UPS the user can enter
the “control menu” and select the instruction “Turn Off”. Please refer to the section on “LCD operation”.
NOTE:
Here, “Turn Off” means that the UPS is not operating in Line / Converter / Battery / Battery testing
mode. Even though the UPS is turned off, if the input or bypass voltage is normal, the internal power sup-
ply will continue to operate; and if the bypass status has been set to “enable”, the output voltage of the
UPS will continue to be present.
2) To fully turn off the output, switch off the external input breaker. A few seconds later the LCD display will
turn off and the UPS will completely shut down.
