Component identification 12
must be connected to a remote, normally-open switch (not supplied). The REPO switch is used in
conjunction with a main disconnect device that removes the AC source from the input of the UPS. When
the switch is closed:
• The REPO feature immediately powers down protected devices and does not utilize the orderly
shutdown procedure initiated by power management software.
• The REPO feature shuts down UPS units operating under either utility or battery power.
NOTE: If the UPS was operating on battery power when the remote switch was closed, no
power is available to the load devices until utility power is restored and the UPS has been
manually powered up.
To restore power to the load devices after the REPO feature is activated, press the On button after the AC
source is reconnected to the UPS.
IMPORTANT: Pressing and holding the On button without utility present normally initiates a
battery start and the UPS assumes the load. However, if the On button is pressed and a REPO
is detected, battery start is inhibited and the UPS is not able to assume the load. The
electronics module fan spins, and the Self Test, Battery Fault, Site Wiring Fault, and
Overtemperature LEDs and an audible alarm are active as long as the On button is held.
To power down the entire network in the event of an emergency, the REPO ports of multiple UPS units can
be connected to a single switch.
ERM rear panel
Item Description
1 Circuit breaker
2 ERM output connector cable (to the UPS)
3 ERM input connector (from another ERM)
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