Bypass Mode - Liebert Vertiv GXT5 Installer/User Manual

1.8.2. Bypass Mode

Bypass mode supplies power to the load from the bypass source (utility power) if an overload or fault occurs
during normal operation. On the front-panel display, the run indicator (green) is ON, the alarm indicator (yellow)
is ON, and the buzzer beeps once each seconds. The LCD "Flow" screen displays "On Bypass."
shows the diagram of bypass mode.
• If utility power fails or if the utility voltage goes outside of the permissible range during bypass-mode-
operation, the UPS shuts down and no output is supplied to the load.
Figure 1-15 Bypass-mode Operation
ITEM DESCRIPTION
1 Mains/Utility input (by-pass input)
2 Rectifier/PFC
3 Inverter
4 Battery charger
5 Battery
6 Bypass static switch
7 UPS output
20
Figure 1-15.
GXT5 Description