StorageTek L180 Reference Manual page 20

Controls and Indicators
SmartTrim
This LED comes on when the UPS is compensating for high voltages.
SmartBoost
This LED comes on when the UPS is compensating for low voltages.
Replace Battery
This LED is on if the self-test fails or when the battery needs to be replaced.
If the self-test fails, the UPS emits short beeps for one minute for up to five
hours. The alarm stops when the self-test passes (or when you replace the
battery). See
Overload
This LED comes on when the load of the UPS exceeds its capacity. An
audible alarm sounds until the overload is removed.
Note: The circuit breaker to the UPS may trip. Disconnect any nonessential
equipment from the UPS to eliminate the overload condition.
Load Bar Graph
85%
This indicator is on the left side of the front panel. It displays the percentage
of the UPS's rated capacity. The five LEDs show the power drawn from the
67%
UPS by the equipment connected to it. For example:
50%
33%
• If three LEDs are on, the load is drawing between 50% and 67%.
17%
• If all the LEDs are on, test the configuration and make sure an overload
Battery Charge Graph
100% This indicator is on the right side of the front panel. It displays the charge
percentage of the battery. For example:
80%
60%
• When all five LEDs are on, the battery is fully charged.
40%
• When the indicators start to go out, the battery is not at 100% capacity.
• When the indicators are flashing, this indicates a low battery warning.
20%
Utility Voltage Bar Graph
This indicator is on the right side of the front panel. It displays the value of
132
the input (utility) voltage. The value is between the lit indicator and the next
123
highest value. For example:
115
107
• If three LEDs are on, the input voltage is between 115 and 123 VAC.
• If all of the LEDs are on, the input voltage is too high for the
98
2-2
"Battery Replacement" on page 4-9
condition does not exist.
The low battery warning occurs approximately two minutes before the
battery is discharged.
configuration and should be checked.
First Edition
for the procedure.
96047