Xtreme Power Conversion Corporation
R91 User’s Manual
Page 15
Uninterruptible Power Supply
Remote Emergency Power Off (EPO) for Parallel Systems
EPO for parallel systems must be connected in parallel and installed as shown below. Once the EPO function of one
of the UPS in the parallel system is activated, the UPS will send out a remote command and shut down the other
UPS’s in the parallel system.
CAUTION!
The remote emergency kill switch must be voltage-free and “normally open”.
EPO connections for parallel systems