Led Indicators - Vertiv Liebert EXS Installer/User Manual

Table 3.1 Display-panel Button Functions and Descriptions (con-
tinued)
NOTE: While the UPS is operating, the LCD will dim and display a screen saver if there is no active alarm
or user interaction for two minutes, see Figure 3.2 below. If an alarm or fault occurs or if any button is
pressed, the UPS-flow screen displays.
Figure 3.2 LCD Screen Saver

3.1 LED Indicators

The LEDs on the front-panel display indicate operation and alarm statuses of the UPS.
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Button Function Description
Escape Go back.
Power Power-on the UPS, power-off the UPS, transfer to Bypass Mode.
Table 3.2 LED Functions
Indicator LED color
Run indicator Green
Yellow
Alarm indicator Red
N/A
LED state Indicates:
On UPS has output
Blinking Inverter is starting
Off UPS has no output
On Alarm occurs
On Fault occurs
Off No alarm, no fault
Vertiv | Liebert® EXS™ Installer/User Guide