38
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.
0T
See Figure
17, 18
on page
35
for EPO location. Figure
21
shows a schematic of
the EPO connector contacts.
0T
Figure 21
0T
EPO Connections
0T
You can set the EPO polarity. See the “EPO Input Polarity” setting in “User
Settings” on page
29
.
0T
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.
0T
NOTE
Always test the EPO function before applying your critical load to avoid
accidental load loss.
Load Segments
0T
Load segments are sets of receptacles that can be controlled by power
management software or through the display, providing an orderly shutdown and
startup of your equipment. For example, during a power outage, you can keep
critical equipment running while you turn off other equipment. This feature allows
you to save battery power.
0T
Each UPS has two load segments:
0T
● Load Segment 1: The power shedding battery voltage of this segment can be set
by LCD.
0T
● Load Segment 2.
0T
See “Rear Covers” on page
49
for load segments for each UPS model.
EPO
