UPS for 480 Vac Grid, User Guide, doc. rel. 4.0
92
Figure 73: Minimum dc voltage at current value
The factory setting of 400 Vdc is recommended for most situations.
8.2.4.3.
Setup > Battery End-of-Backup voltage limit
During a mains power blackout, the batteries provide power to the UPS’s Inverter. In the process,
the battery voltage continually decreases. The “End-of-backup voltage limit” lets you define how
low you want to let the battery voltage go before the UPS shuts down.
