Tripp Lite AGPS5542 Owner's Manual page 10

Basic Operation
"BYPASS" LED: This yellow light will flash to indicate that the UPS DC/AC
inverter is deactivated and the UPS is in the "Bypass" mode. During
normal operation this LED will light briefly when the unit is plugged in,
but if an internal fault or overload occurs, this light will flash constantly
and the fault LED will illuminate to show that connected equipment will
receive filtered AC mains power, but will not receive battery power during
a blackout. In this case, contact Tripp Lite for service. If the UPS has
been placed into Economy Mode (available on select UPS systems), it
configures an online UPS to function as a switching UPS. When the UPS
system is in Economy Mode, it operates at increased efficiency while AC
utility power is available (within +/- 10% nominal) and switches to
battery power if AC utility power is interrupted. The yellow "BYPASS" LED
will remain on when the UPS system is in Economy Mode. (For more
information on how to access the Economy Mode, please refer to the
PowerAlert software User's Manual)
"FAULT" LED (select models only): This red light will flash when your
UPS detects an internal fault (overheating, overvoltages, etc.) or when it
detects a wiring fault in your wall outlet (reversed phases, missing
ground, etc.) The UPS will only detect wiring faults when it is plugged
into a utility outlet but not turned ON. If the light persists after restarting
the UPS, contact an electrician to check the AC line. Your UPS will
identify the presence of most (but not all) wiring faults.
"LOAD ACTIVE METER" LED: This green light will illuminate when your
UPS is receiving AC power to indicate that the set of four dual-function
LEDs is displaying the load level of your UPS.
"BATT ACTIVE METER" LED: This green light will illuminate when your
UPS is operating from battery power to indicate that the set of four dual-
function LEDs is displaying the battery charge level of your UPS.
Note: The "ON BATT" LED will also be illuminated.
"OVERLOAD" LED: This red light will illuminate constantly to indicate
that your UPS capacity has been exceeded while it is in on-line
operation. The UPS alarm will beep continuously. Immediately remove
overload until light and alarm goes off. If you do not immediately remove
the overload, the UPS will transfer from on-line to bypass operation.
"BATT LOW" LED: This yellow light will illuminate when your UPS battery
charge level is low. The UPS alarm will beep until either the battery
charge is depleted or the batteries are adequately recharged.
"ON BATT" LED: This green light will illuminate constantly to indicate
that AC line voltage is not present and your UPS is providing your
equipment with battery power. The UPS will also beep every two seconds,
unless silenced by the "ON/TEST" Button. When this light is illuminated,
you can monitor the battery charge level of your UPS on the "BATT
ACTIVE METER" LEDs.
10
17-05-032-932471.indb 10 5/23/2017 1:41:47 PM