OPTI-UPS DS3000D(L) - Manual (Page 9)

16
5
AC utility power is normal, but the load is
supplied by AC utility power via bypass. Output
power is more than 150% (referring to the Output
Power Menu). Warning LED lits up and buzzer
beeps continuously.
Please reduce the
critical load to
POWER(%)<100%.
6
AC utility power fails .The full load is supplied by
battery power in UPS. Buzzer alarm sounds
every 4 seconds.
If AC utility power
fails, reduce the less
critical load in order to
extend backup time. If
it is not abnormal
power failure, please
check the rated input
or connected line.
17
7
AC utility fails. The load is supplied by UPS in
backup mode and battery power is approaching
low level. Buzzer alarm beeps every second.
UPS will shut down
automatically. Please
save data soon.
8
AC utility power fails and battery runs out. UPS
has shut down automatically.
UPS will restart up
when AC utility power
is restored. In case
AC utility power fails
more than 6 hours,
please follow storage
instruction.