COMMUNICATION
Eaton
®
9140 (9910-E82/E83) UPS Installation Guide for IBM
®
Applications
S
164201715 Rev 2
www.eaton.com/ibm
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Remote Emergency Power-off and Remote On/Off
The E82/E83 includes a two-position terminal that can be either left open
or configured one of two ways:
S
As a remote emergency power-off (REPO) contact
that allows power to be
switched off at the UPS output from a customer-supplied switch in a
remote location.
The REPO feature shuts down the protected equipment immediately
and does not follow the orderly shutdown procedure initiated by any
power management software. Any devices that are operating on
battery power are also shut down immediately. The UPS transfers to
Standby mode, and the Control menu options are unavailable. 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, and fully powers down the load
immediately. If the utility breaker is also tripped, the UPS fully powers
down within 10-15 seconds.
When the REPO switch is reset, the equipment will not return to
Normal mode until the UPS is manually started.
S
As a remote on/off (ROO) contact
that allows the UPS to be turned on
and off from a customer-supplied switch in a remote location.
If the ROO function is configured, energizing and de-energizing the
load from the front panel is NOT available. However, transfers
between Normal mode and Bypass mode are available through the
front panel.
Two REPO/ROO positions may be used: normally-open or
normally-closed. The pins on the normally-open REPO connector are not
connected together. When this connection is closed:
S
For REPO, the logic circuitry completely shuts down the UPS, thus
preventing the power from supplying the load.
S
For ROO, a remote on signal energizes the load, and opening the
connection sends a remote off signal that de-energizes the load.
NOTE
To restart the UPS, return the REPO terminal to its normal deactivated state, then
use the front panel to return the UPS to Normal mode.
NOTE
Disconnect the load when changing the active state of the ROO contact. The load
will energize or de-energize as soon as the state is changed, depending on whether there is a
jumper installed.
