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3. Operation
● Operation after a power failure
• If a power failure or abnormal input power supply occurs, the UPS automatically switches to Battery
Mode, continuing power output from the Power Supply Output Receptacles supplied from the battery.
• The status is displayed and the beeper sounds intermittently to alert the user.
See also
Setting switch 1 can be used to turn the beeper ON/OFF. ➛ Page 43
Status
indicator
Battery
replacement
Beep Output Charging Description Solution
Intermittent
4-second
intervals
Intermittent
1-second
intervals
None
OFF
Discharging
ON
OFF
Discharging
ON
OFF
Discharging
OFF
In Battery Mode due to power failure or
AC power error.
Perform shutdown
operations for the
connected devices
and stop them.
(Same as above.)
Battery level is low, so output will stop soon.
(Same as above.)
Battery is dead, so output stopped.
(This is displayed only for a few seconds.)
Charge the battery.
( indicates blinking)