v On the Meter and Notice/Alarm screens, to lock the screen (prevent the screen
from returning to its default after timeout). A locked screen displays a small key
image near the status icon. To unlock the screen, press any button to perform its
usual function.
On/off: Press this button to turn on the UPS. Press and hold this button for 3
seconds to turn off the UPS.
The following display button shortcuts are available.
Table 5. Display button shortcuts
Shortcut Buttons
Disable the battery start
feature
Press and hold the escape (X) and down (
) buttons for 3
seconds. The UPS beeps once to indicate that Battery Start is
disabled for the next ac power cycle.
Set the display to English Press and hold the escape (X), down (
), and OK buttons for
5 seconds.
Operating modes
The UPS has the following operating modes:
v Normal
v High Efficiency
v Converter
v Battery
v Bypass
v Standby
Note: If the UPS is unable to continue operating normally, it might attempt to save
data and follow an orderly shutdown sequence. However, some unrecoverable
failures and overload conditions cause the UPS to transfer to Fault mode without
saving data, and turn off immediately to protect the UPS and the load from damage.
Normal mode
The UPS supplies the load power from utility power. The UPS monitors and
charges the batteries as needed and provides filtered power protection to your
equipment.
High Efficiency mode
The UPS supplies the load power from the bypass source and stands ready to
automatically transfer to standard double-conversion (Normal) operation as needed.
The battery recharges when necessary. The High Efficiency setting minimizes heat
contribution to the rack environment.
28 11000 VA UPS and 11000 VA EBM: Installation and Maintenance Guide
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