Liebert Vertiv GXT5 - 1.8. UPS States and Operating Modes

Vertiv | Liebert® GXT5™ | Installer/User Guide
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1.8. UPS States and Operating Modes
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See LED Indicators on page 54, for description of the run-indicator and alarm-indicator LEDs
mentioned this section.
1.8.1. Normal Mode
When utility power is normal, Normal mode employs the rectier and inverter to provide voltage and frequency
stabilized power to the load. The charger charges the battery in normal mode. On the front panel display, the
run-indicator (green) is ON, the alarm indicator is OFF, and the buzzer is silent. Figure 1-14 shows the diagram
of normal mode.
Figure 1-14 Normal-mode Operation
ITEM DESCRIPTION
1 Mains/Utility input (by-pass input)
2 Rectier/PFC
3 Inverter
4 Battery charger
5 Battery
6 Bypass static switch
7 UPS output