UPServer2.0
ON-LINE DOUBLE CONVERSION
operation, the input power must be disconnected from the UPS when the
emergency power-off function is activated.
NOTE
For Europe, the emergency switch requirements are detailed in
Harmonized document HD-384-48 S1, “Electrical Installation of the Buildings,
Part 4: Protection for Safety Chapter 46: Isolation and Switching.”
EPO Connections
Wire Function Terminal Wire Size Rating Suggested Wire Size
EPO L1
4–0.32 mm2 (12–22 AWG) 0.82 mm2 (18 AWG)
L2
NOTE
Leave the EPO connector installed onto the EPO port of the UPS
even if the EPO function is not needed.
See Figure 20， for EPO location.
Figure 20
EPO Connections
You can set the EPO polarity. See the “EPO Input Polarity” setting in “User
Settings”
NOTE
Depending on user configuration, the pins must be shorted or opened to
keep the UPS running. To restart the UPS, reconnect (re-open) the EPO connector
pins and turn on the UPS manually. Maximum resistance in the shorted loop is 10
ohm.
NOTE
Always test the EPO function before applying your critical load to avoid
accidental load loss.
EPO
