3 Checking and starting the operation
3-2 Checking the operation
BU5002R/BU3002R/BU3002RH
77
3
4.
Check if the status of the LCD display and buzzer is same as follows.
Icon
Buzzer sound
None
“Power output” receptacle
Electrical power is output (connected device
is being supplied with electricity)
If the status is same
→ Operation is normal. Proceed to the procedure (5).
If the status is different
→ Operation is abnormal. Take an appropriate measure
according to “3-1-7 How to interpret icons, LED, and
buzzer sounds” (page 65) before proceeding to the
next step.
5.
Unplug the “AC input” plug of the UPS from the power outlet (commercial power
supply).
Operation switches to the backup operation status.
6.
Check the status of the LCD display and buzzer while in the backup operation
status.
Is the status same as one of the following?
Icon
Buzzer
Output
Description
Intermittent,
4 second
intervals
ON
In backup mode due to a power
outage or an AC input fault.
Output stops if backup
operation is continued.
Intermittent,
1 second
intervals
ON
In backup mode due to a power
outage or an AC input fault.
The residual battery capacity is
low, so output will stop soon.
None
OFF
The residual capacity of the
battery has been depleted, so
output has stopped.
