44 8-10 kVA, 50/60 Hz (1-phase input) &
8-15 kVA, 50/60 Hz (3-phase input)
P-164000341
User's Guide Revision 1
• Building alarm 1-6 (These can be activated separately or at the same time with other building
alarms.)
• Not in use (default)
• Shutdown (If active the UPS will shutdown immediately.)
• Delayed Shutdown (If active the UPS will shutdown after user configurable delay time. Restart
initiated immediately when inactive.)
• Normal/Bypass (If active the UPS transfers to bypass if ok. If inactive the UPS transfers to inverter
when possible.)
• Output transformer over temperature (If active the UPS output turns off after user configurable delay
time.)
• Input transformer over temperature without bypass (If active the UPS will start to operate on battery
or shutdown when batteries not available after one minute delay.)
• Input transformer over temperature with bypass (If active the UPS will start to operate on battery or
transfer to bypass after one minute delay.)
7.3.4 EPO relay (option)
The Emergency Power Off (EPO) is a safety feature designed to power down the UPS in case of
an emergency. The EPO relay is activated when control voltage (24VDC) is applied to it. The logic
circuit will receive the signal and immediately turn off the output power of the UPS and open the
battery circuit breaker (F1) disconnecting the battery power. After using EPO, the UPS unit needs to
be started manually. The EPO relay can be ordered as factory installed.
Figure 7-4: EPO relay and the connection diagram
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