HP R12000 XR, User Manual

Page: 79 / 126

Maintenance 79
By default, all UPS components except the Management Module card are flashed during the upgrade. For
more information about using a utility to update or configure the Management Module card, see the HP
DirectFlow UPS Management Module User Guide .
Restoring power after a REPO activation
IMPORTANT: 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:
1.
Connect the REPO port. To connect a REPO port for an R12000DF power unit, see "Connecting the
R12000DF REPO port (on page
49 )." To connect a REPO port for an R18000DF power unit, see
"Connecting the R18000DF REPO port (on page 54 )."
2.
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. If the On button is pressed and a REPO is detected,
the battery start is inhibited and the UPS is not able to assume the load. The electronics module fan
spins and the UPS fault LED and an audible alarm is 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 power units can
be connected to a single switch.
Verifying the REPO port connection
IMPORTANT: While testing, operate connected equipment in a safe test mode so the effects do
not disrupt critical operations.
Verify the connection after connecting the REPO port:
1.
Initiate a REPO by closing the REPO contact.
CAUTION: If the polarity is reversed while connecting the REPO port, the UPS powers up
normally.
2.
Verify proper connection of the REPO port:
a.
Press the On button to power up the UPS.
b.
Disconnect the REPO port.
c.
Reconnect the REPO port.
If the polarity is correct, the REPO connectors can be disconnected, and then reconnected, without
initiating a REPO.
d.
Verify that the UPS remains in AC mode (on page 76 ).
e.
If a REPO is initiated, the polarity is reversed. Check and correct the connections.