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24 Chapter 3 Operation
E1-20010329-C-1.0
1. Press and hold the ON/SILENCE button for about 1 second, after a beep and
system self-test, the battery indicator and inverter indicator turns green, as shown in
Fig. 3-9, and the buzzer beeps every 3 seconds, indicating the UPS is operating in
Battery mode.
Figure 3-9
2. Overload process is same with the above "Start from the utility power".
Note
If overload occurs when the UPS is on the battery, remove part load immediately or
the system will shutdown after a short time lapse.
3.2.3 Manual Battery Self-testing
When in Normal mode, provided that the Utility voltage is normal, no overload exists,
and the battery voltage is not lower than 240V, battery test can be conducted by
pressing button on the LCD panel press and hold the ON/SILENCE button for 4
seconds (a beep is heard 3 times) and then release the button . 3 seconds later, the
battery test begins, the battery indicator turns on , and the buzzer beeps as in Battery
mode. After battery test, the buzzer stops beeping, the battery indicator goes off, and
the displays on the panel indicators restore to the state prior to test. When battery fault
is detected (no battery, faulty battery, or battery reverse connection) during test, the
fault indicator turns on , and the LCD screen displays "BATTERY FAIL", as shown in
Fig. 3-10
（b）.
220.0V
OUTPUT VOLT
Battery Fault
Figure 3-10（a） Figure 3-10（b）
220.0V
OUTPUT VOLT