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3
.Operation
30
3-3 Interpreting beeps and displays
No.
Status
indicator
Mode
Beep
Description
Solution
1
Standby
Mode
None
Power switch OFF
Operation stopped
-
2
Commercial
Power Mode
None
Power switch ON
Operating normally
-
3
Bypass
Mode
None
AC input is bypassed to the
output due to an internal failure
of the UPS or other reason
Refer to the message
displayed on the LCD.
4
Test Mode
None
Self-diagnostic test in progress Commercial Power Mode
is recovered after a
certain period of time.
5
UPS Event
None
Waiting; startup conditions are
not fulfilled
Refer to the displayed
message.
6
Battery
Mode
Intermittent
4-second
Backup is operating due to
power failure or AC input error
Shut down the connected
devices to stop them.
7
Battery Low
Intermittent
1-second
Battery level is low, so output
will stop soon
Shut down the connected
devices to stop them.
Battery
Empty
Intermittent
2-second
Battery is dead, so output
stopped
Charge the battery.
8
Battery
Deterioration
Intermittent
2-second
Battery has deteriorated
Replace the battery.
9
Overload
Intermittent
0.5-second
High connection load
Reduce the connection
load.
10
UPS Failure
Continuous
Failure or warning has
occurred
Refer to the message
displayed on the LCD.
●
Load/battery level meter
The load level meter displays the power consumption of the connected devices as a percentage.
BU2002RWLG: Displayed in 10 levels, with 100% indicating 2000 VA/1400 W.
BU3002RWLG: Displayed in 10 levels, with 100% indicating 3000 VA/2100 W.
BU5002RWLG: Displayed in 10 levels, with 100% indicating 5000 VA/3500 W.
The battery level meter displays the remaining battery level as a percentage.