PowerWalker WinPower Software V.4.3.0.1 Quick Guide - Manual (Page 9)

11. The new option: Multi-UPS input
If there are more than one UPS supplying power to the local agent as below, you want to safely shut
down or suspend the local agent before all UPS can’t supply power to the local agent. You should
select the “Multi-UPS input” option in the “shutdown settings” dialog of each UPS and set
condition, refer to the following picture. The local agent won’t be shut down or in suspend mode
until all the condition of all UPS is met.