HP Tower Uninterruptible Power System - Manual (Page 52)

Troubleshooting 52
Troubleshooting
LED troubleshooting
Utility
LED On
Batter
y LED On
Bypas
s LED Self
Test
LED Battery
Fault
LED Site
Wiring
Fault
LED Over
Temp
LED Overloa
d LED Condition
On—
Load
<10% Off Off On—
Load
>10% On—
Load
>25% On—
Load
>50% On—
Load
>75% Off UPS is in Operate mode (on
page
38 )
Flashin
g Off Off Off * * * Off UPS is in Standby mode (on
page
38 )
Off Off On On—
Load
>10% On—
Load
>25% On—
Load
>50% On—
Load
>75% Off UPS is in Auto-Bypass mode
(on page
39 )
Flashin
g Flashin
g Flashin
g Off Off Off Off Off UPS is in Converter Off mode
(on page
54 )
Off Off Off Off Off Off Flashing Flashing General alarm condition (on
page
54 )—UPS is in Auto-
Bypass mode
On Off Flashin
g * * * * * Bypass is out of range (on
page
55 )
* Off * Off Flashing * * * Battery condition (on page
55 )—Batteries are
disconnected or battery test
failure
Off Flashin
g Off Off Off Off Off Off Low battery (no utility power)
("
UPS is on battery " on page
55 )