Operation 3-3
Sleep Mode
By default, Sleep mode is disabled.
When Sleep mode is disabled:
■ If the batteries have been fully discharged, power may not be
automatically restored to the output receptacles when utility power is
restored.
CAUTION: The UPS Sleep mode default setting is OFF (disabled). When Sleep
mode is OFF (disabled), if the UPS is supplying battery power, the batteries can
be fully discharged before the UPS will shut down. If the batteries become fully
discharged, they may be unrecoverable (damaged).
NOTE: For information on enabling Sleep mode, see Chapter 4, “Configuration.”
When Sleep mode is enabled:
■ If the UPS is supplying battery power and the load on the UPS is less
than 10 percent, the UPS shuts down.
■ Power is automatically restored to the output receptacles when utility
power is restored.
Front Panel Controls
The 1000 Series UPS front panel includes the controls required to:
■ Place the UPS in Operate mode.
■ Place the UPS in Standby mode.
■ Place the UPS in Configure mode.
■ Initiate a self-test.
■ Silence an audio alarm.
NOTE: For information about changing the configuration on the UPS, or simply checking
the current configuration, see Chapter 4, “Configuration.”
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