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5) If the overload time is over duration listed in spec at Line mode, the UPS will automatically transfer to
Bypass mode. After the overload is removed, it will return to Line mode. If the overload time is over
duration listed in spec at Battery mode, the UPS will become fault status. At this time, if bypass is
enabled, the UPS will power to the load via bypass. If bypass function is disabled or the input power is
not within bypass acceptable range, it will cut off output directly.
3-3-4. Charge the batteries
1) After the UPS is connected to the utility power, the charger will charge the batteries automatically except
in Battery mode or during battery test;
2) Suggest to charge batteries at least 10 hours before use. Otherwise, the backup time may be shorter than
expected;
3) Make sure the battery numbers setting on the LCD Panel (Please refer to the section of changing battery
quantity) is consistent with actual connection.
3-3-5. Battery mode operation
1) When the UPS is in Battery mode, the buzzer will beep according to different battery capacity. Normally,
the buzzer will beep once every 4 seconds in battery mode, but when the battery voltage drops to the
alarm level, the buzzer will beep once per second and the UPS will shut down automatically soon. Users
could switch off some non-critical loads to disable the shutdown alarm and prolong the backup time. If
there is no more load to be taken off at that time, you have to shut down all loads as soon as possible to
protect the devices or save data. Otherwise, there is a risk of data loss or load failure.
2) In Battery mode, if buzzer sounds annoying, you could enter ”Control->Mute” on LCD to silence it.
Please refer to the section of “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 16.5 hours (After discharging 16.5 hours, UPS will shut
down automatically to protect the battery). The time could be modified through LCD panel or
communication port.
3-3-6. Test the batteries
1) If you need to check the battery status or performance when the UPS is running in Line / Converter (CVCF)
/ ECO mode, you could enter ”Control->Bat Test” to instruct the UPS to do battery test. Please refer to the
section of “LCD operation”;
2) Users also can set battery test through monitoring software;
3) If the UPS is in battery testing, “Battery test mode” will be displayed on LCD, the buzzer indication will be
the same as Battery mode, but both line LED and battery LED will be lit.
3-3-7. Turn off the UPS with utility power supply in Line mode
1) When LCD is on home page, press the “OFF/ESC” button, LCD will show a prompt page of “Turn Off”;
Move the arrow to “Yes” by up or down button, then press “ON/ENTER”, the UPS will be turning off to
bypass mode with beeping once. You could also enter the “control menu” to select the instruction “Turn
Off” to turn off the UPS. Please refer to the section of “LCD operation”;
NOTE:
Here, “Turn Off” means that UPS is not working on line / converter / ECO / battery / battery test
mode. So even though the UPS is turned off, if input or bypass voltage is normal, the internal power
supply will be still working; and if bypass status has been set to “enable”, the output voltage of the UPS
will be still exist;
2)
If you need to fully cut off the output, please switch off the external input breaker. A few seconds later,
there is no display shown on the panel and UPS is completely off.
