3�3� Transferring To Battery Mode; 3�4� Transferring From Normal To Bypass Mode; 3�5� Transferring From Bypass To Normal Mode - Vertiv Liebert GXT5 Series Installer/User Manual

3.3. Transferring to Battery Mode
The UPS operates in Normal mode unless the mains/utility power fails or it is performing a battery self test, then it
automatically transfers to Battery mode for the back-up time available or the mains/utility power is restored� Once
input power is restored, the UPS returns to Normal mode�
NOTE: Battery back-up run times are listed in
3.4. Transferring from Normal to Bypass Mode
Press and hold the power button for 2 seconds�
If the UPS is operating normally, without faults, the option to continue to turn-on or turn-off the UPS displays:
a� Use the arrow buttons to select To the Bypass, and press Enter�
b� Use the arrow buttons to select No or Yes, then press Enter to confirm�
If the bypass power is outside normal operating range, do not transfer to Bypass mode�
3.5. Transferring from Bypass to Normal Mode
Press and hold the power button for 2 seconds�
If the UPS is operating normally, without faults, the option to continue to turn-on or turn-off the UPS displays:
a� Use the arrow buttons to select Turn on UPS, and press Enter�
b� Use the arrow buttons to select No or Yes, then press Enter to confirm�
NOTE: The UPS automatically switches back to normal mode after an "overheated" or "overloaded" fault is
cleared and normal power is restored.
22
Battery Run Times on page 62.
Operating the UPS