Table 13. Typical alarms and conditions (continued)
Alarm or condition
Possible cause
Action
Output Overload Level 2
(Alarm 159)
Fast Beeping Alarm
The load level is >101% and <110%
of the uninterruptible power supply
rating.
See “Behavior on overload” on page
26.
Immediately remove some of the
equipment from the uninterruptible
power supply. The alarm clears when
the load drops below 5% of the set
point.
Output Overload Level 3
(Alarm 162)
Continuous Alarm
The load is >110% of the
uninterruptible power supply rating.
See “Behavior on overload” on page
26.
Shutdown is imminent.
The alarm clears when the load drops
below 5% of the set point.
Battery DC Over Voltage
(Alarm 68)
Fast Beeping Alarm
The battery voltage levels have
exceeded the maximum allowable
limits.
The uninterruptible power supply
turns off the charger until the next
power recycle. Contact your service
representative.
Charger Failure
(Alarm 34)
Continuous Alarm
A battery charger fault has been
detected.
The uninterruptible power supply
turns off the charger until the next
power recycle. Contact your service
representative.
Output Short Circuit
(Alarm 58)
Fast Beeping Alarm
The uninterruptible power supply has
detected an abnormally low
impedance placed on its output and
considers it a short circuit.
The uninterruptible power supply
shuts down after five line cycles.
Heatsink Over Temperature
(Alarm 73)
Fast Beeping Alarm
The uninterruptible power supply has
detected that one of its heat sinks
has exceeded the maximum defined
operating temperature. Possible fan
failure.
Make sure that the fans are spinning
and that the air intake vents on the
uninterruptible power supply are not
blocked. After the maximum
temperature is reached, the
uninterruptible power supply shuts
down.
Fatal EEPROM Fault
(Alarm 53)
Continuous Alarm
There is EEPROM data corruption
due to a failed device or incorrect
flash upgrade.
Contact your service representative.
Fan Failure
(Alarm 193)
Continuous Alarm
The uninterruptible power supply has
detected that one or more fans are
not functioning correctly.
This is an alarm only. Contact your
service representative immediately
and remove the load.
Silencing the alarm
Press any button on the control panel to silence the alarm. Check the alarm
condition and perform the applicable action to resolve the condition. If any new
alarm becomes active, the audible alarm resumes, overriding the previously
silenced alarm.
46
1000 VA and 1500 VA LCD Tower UPS: Installation and Maintenance Guide
Summary of Contents for 1500VA
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