PowerWalker VFI 3000R - Manual (Page 4)

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5~9. Load & Battery Capacity LEDs:
(a) No. 5 to 8 LED is green color and No. 9 (used as warning LED for
overload or battery low) is yellow.
(b) These LEDs show the load % of the UPS if the mains power is
available (in normal operation). LEDs light up to indicate the following
information.
No. 5 LED: 0-35 % No. 5&6&7&8 LEDs: 76-95 %
No. 5&6 LEDs: 36-55 % No. 5&6&7&8&9 LEDs: 96-105%
No. 5&6&7 LEDs: 56-75 %
(c) In the battery operation, the LEDs indicate the capacity (%) of the
batteries. LEDs light up to indicate the following information.
No. 9 LED: 0%-25 % (battery low level)
No. 8&9LEDs: 26%-50 % No. 6&7&8&9 LEDs: 76%-95 %
No. 7&8&9 LEDs: 51%-75 % No. 5&6&7&8&9 LEDs: 96-100 %
10. Fault LED (red): To indicate the UPS is in fault condition because of
inverter shutdown or over-temperature
11. On/Test/Mute key: It should be pressed with the control key (see the
following item 12) simultaneously to do UPS auto test and turn off the
buzzer when in battery operation.
12. Control Key:
(a) When this key is pressed with the On/Test/Mute key simultaneously
for 3 seconds, the UPS will be switched on after two beeps.
(b) When UPS is in operation, press this key and On/Test/Mute/ key
simultaneously, the UPS will do auto battery test. And the Battery LED
will blink if the battery may have problem. Besides, in battery operation
(buzzer beeps), press this key and the On/Test/Mute key at the same
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time to disable the buzzer.
(c) When UPS is in operation this key is pressed with the Off key
simultaneously for 3 seconds, the UPS will be switched off after two
beeps
13. Off key: It should be pressed with the control key (see the above item 12)
simultaneously to switch off the UPS.
LCD Version
1. LCD Display: This indicates the UPS operation information, including UPS
status, input/output voltage, input/output frequency, battery voltage, battery
capacity left, output load, inside temperature, and the times of history
events.
2. LCD Select Up-key: It is pressed to select upward the UPS status on LCD
Display.
3. LCD Select Down-key: It is pressed to select downward the UPS status on
LCD Display. Beside, press it simultaneously with the Up-key to switch off
the UPS.