PowerWalker VFI 1000E User Manual

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5. Fault LED (red): To indicate the UPS is in fault condition because of

inverter shutdown or over-temperature.

6. Warning LED (yellow): To indicate the UPS is in the status of overload,

bypass and battery back-up.

7. Normal LED (green): To indicate the UPS is operating normally.

3.2 LED Display

1. Line LED (green): To indicate the AC power is applied to the UPS input.

In case this LED blinks, it means the main AC source is out of tolerance.

2. Bypass LED (yellow): To indicate the load is powered via the bypass.

3. Battery LED (yellow): To indicate the UPS is in battery backup mode

when the mains power has failed.

4. Inverter LED (green): To indicate the UPS is powered through inverter.

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 %

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