3 Check and start operation
3-2 Checking the operation
BN50T/BN75T/BN100T/BN150T/BN220T/BN300T
3-10
5. Disconnect the unit’s AC input plug from the wall outlet (commercial power source).
The unit enters Battery Mode.
6. In Battery Mode, check the unit's LED display and beep sound.
Does the icon appear as one of those shown below?
Icon Beep Output Description
Intermittent
4-second intervals
ON Backup is operating due to power failure or AC input
error. Output will stop if Battery Mode continues.
Intermittent
1-second intervals
ON Backup is operating due to power failure or AC input
error. Battery level is low, so output will stop soon.
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If not the same as one of
those shown above: "
Operation is abnormal. Check the status of lamps and
beep, and then press and hold the power switch for 2
seconds or longer to turn OFF the power.
If the display is one of those shown in “3-1-7 Icons,
LEDs, and beeps”, take the necessary measures
and then go back to procedure 1.
If no Battery Mode is performed and the UPS and
the devices connected to the UPS stop, this may be
attributed to an insufficient battery charge.
After connecting the AC input plug to a wall outlet
(commercial power source) and charging the bat-
tery, go back to procedure 5 on previous page.
If the problem persists after chec
king the 2 points
above, contact the shop of purchase.
Additional Information
Beeper ON/OFF can be set with “Setting” - “Local Setting” - “Audible Alarm” in the
menu on the LCD.
7. Reconnect the AC input plug to the commercial power source.
The icon returns to its normal state and the beeping sound stops.
(The status is as shown below.)
Icon Description
Power switch “ON”
Operating normally
Checking the operation is now complete.
Installation and connection is now complete.
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