COMMUNICATION
EATON Powerware
®
9355 UPS (10/15 kVA) User’s Guide S 164201594 Rev C www.powerware.com
63
Remote Emergency Power-off
REPO is used to shut down the UPS from a distance. This feature can
be used for shutting down the load and the UPS by thermal relay, for
instance in the event of room overtemperature. When REPO is
activated, the UPS shuts down all converters, de-energizes all system
relays, trips the battery circuit breaker, and fully powers down within
10-15 seconds.
There are two REPO positions that may be used, normally-open or
normally-closed.
The pins on the normally -closed REPO connector are connected
together. When this connection is open, the logic circuitry completely
shuts down the UPS, thus preventing the power from supplying the
load.
If the use of normally-closed REPO operation is desired, replace the
connector with a normally-closed external switch (see Figure 34 on
page 49).
If the use of normally-open REPO operation is desired, connect a
normally-open external switch (see Figure 34 on page 49).
NOTE To restart the UPS, reconnect the REPO connector p ins and turn on the UPS
manually. The pins must be shorted to keep the UPS running. Maximum resistance is 10 ohm.
NOTE Leave the REPO connector installed in the REPO port on the UPS rear panel even if
the REPO function is not needed.
CAUTION
S The REPO must not be connected t o any utility connected circuits. Reinforced insulation
to the utility is required. The REPO switch must have a minimum rating of 24 Vdc and
20 mA.
S To ensure the UPS stops supplying power to the load during any mode of operation, the
input power must be disconnected from the UPS when the emergency power-off function
is activated.
REPO Connections
Wire Function Terminal Wire Size Rating Suggested Wire Size
REPO
L1
12
22 AWG
L2
(4–0.32 mm
2
)
18 AWG (0.82 mm
2
)
