2.6.2 Battery mode
Battery mode supplies battery power to the load if utility power fails or if the utility voltage goes outside of the permissible
range. On the front panel display, the run indicator (green) is On, the alarm indicator (yellow)is On, and the buzzer beeps once
each second. The LCD Current screen displays On Battery.
Figure 2.6 Battery Mode Operation
Item Description
1 Bypass input
2 Maintenance bypass breaker (MBB)
3 Bypass input breaker (BIB)
4 Static switch
5 Rectifier input
6 Rectifier input breaker (RIB)
7 Rectifier
8 Battery charger
9 Battery
10 Inverter
11 Automatic inverter switch
12 Maintenance isolation breaker (MIB)
13 UPSoutput
12 Proprietary and Confidential ©2023 Vertiv Group Corp. 2 Product Description
Vertiv™ Liebert® EXS Installer/User Guide