Installing The Remote Emergency Power-Off - IBM 11000 VA LCD 5U Installation And Maintenance Manual

Notes:
1. Do not protect laser printers with the UPS because of the exceptionally high
2. Before you connect the UPS power cord to a power source, see "UPS initial

Installing the remote emergency power-off

The UPS includes a remote emergency power-off connector that enables you to
turn off power at the UPS output receptacles from a customer-supplied switch in a
remote location. For example, you can use this feature to shut down the load and
the UPS by thermal relay, in the event of a room overtemperature condition. When
a remote emergency power-off is activated, the UPS shuts down the output and all
its power converters immediately. The UPS logic power remains on to issue an
alarm.
The remote emergency power-off feature shuts down the connected devices
immediately and does not follow the orderly shutdown procedure that is initiated by
any power-management software.
Any devices that are operating on battery power are also shut down immediately.
When the remote emergency power-off switch is reset, the connected devices do
not return to battery power until the UPS is restarted manually.
Notes:
1. The remote emergency power-off contacts are open by default. To change this
2. For Europe, the emergency switch requirements are detailed in Harmonized
3. The pins must be open to keep the UPS running. If the UPS shuts down
4. To avoid accidental load loss, always test the remote emergency power-off
14
11000 VA UPS and 11000 VA EBM: Installation and Maintenance Guide
power requirements of the heating elements.
startup" on page 25.
setting, see the REPO setting in Table 8 on page 32.
document HD-384-48 S1, "Electrical Installation of the Buildings, Part 4:
Protection for Safety, Chapter 46: Isolation and Switching."
Table 3. Remote emergency power-off connections
Wire function
Remote emergency power-off 4 - 0.32 mm
because the remote emergency power-off connector pins are shorted, restart
the UPS by reopening the remote emergency power-off connector pins and
turning on the UPS manually. Maximum resistance in the shorted loop is 10
ohm.
function before you apply your critical load.
Terminal wire size rating
2
(12 - 22 AWG)
Suggested wire size
2
0.82 mm (18 AWG)