OPTI-UPS IS5000LR - Manual (Page 18)

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5. INDICATION AND CONTROL
5.1 LED Display
5.1.1 Battery level and load level LEDs
The battery level LEDs show the voltage level both in back-up mode and in normal mode.
When the LED indicates 20% of the capacity in back-up mode, it means that the UPS is going to
shut down; for the length of backup time left, it will depend on the load. While when all five
LEDs are lighted in normal mode, it means that the battery is fully charged.
The load level LEDs show the percentage of added load by the UPS’s rated capacity. When all five
LEDs are lighted, the UPS is over loaded.
5.1.2 Operation status LED
The status LED shows the UPS status. It shows Green when the utility power is normal; and shows
Orange in the event of a utility outage; while if the UPS is under fault operation, it shows Red.
5.2 LCD Display
5.2.1 Main control button: Please refer to point 4 & 5 (4.1~4.7 & 5.3~5.4).
5.2.2 LCD screen