20
Power Innovations
INTegral Line-Interactive Uninterruptible Power Supply
—1.5kVA-T
5.2.2
—Utility Power Failing
Scenario
Possible Cause
Try
AC utility power fails. The
battery powers the load.Buzzer
sounds every four (4) seconds.
AC utility power failure.
Reducing the critical load to
extend backup time.
AC input may not be
connected correctly.
Checking the input rate.
Checking power connection.
AC utility fails. UPS is in battery
backup mode. Buzzer beeps
every second.
Battery power is
approaching low levels.
UPS will shut down
automatically. Save data or
disconnect loads soon.
AC utility power fails. UPS has
shut down automatically.
Battery has run out.
UPS will restart when AC utility
power is restored.