Eaton 9910 - Page 73

TROUBLESHOOTING
Eaton 9910 UPS and EBM User's Guide S P-164000005 Rev 2
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Table 15. Typical Alarms and Conditions (continued)
ActionPossible CauseAlarm or Condition
Output Overload
(Notice 25)
Slow Intermittent Alarm
The load level is at or has
exceeded the configurable
threshold limit for a Level 1
Overload condition. See “Behavior
on Overload” on page 30.
The UPS can support the load indefinitely at
this load level. The alarm clears when the
load drops below 5% of the set point.
Output Overload Level 2
(Alarm 159)
Fast Beeping Alarm
The load level is >101% and <110%
of the UPS rating. See “Behavior
on Overload” on page 30.
Immediately remove some of the equipment
from the UPS. The alarm clears when the
load drops below 5% of the set point.
Output Overload Level 3
(Alarm 162)
Fast Beeping Alarm
The load level is >110% of the UPS
rating. See “Behavior on Overload”
on page 30.
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 UPS turns off the charger until the next
power cycle. Contact your service
representative.
Charger Failure
(Alarm 34)
Continuous Alarm
A battery charger fault has been
detected.
The UPS turns off the charger until the next
power cycle. Contact your service
representative.
Inverter AC Over Voltage
(Alarm 0)
Fast Beeping Alarm
The UPS has detected abnormally
high output voltage levels.
The UPS transfers to Bypass mode if
supporting the load.
Inverter AC Under Voltage
(Alarm 1)
Fast Beeping Alarm
The UPS has detected abnormally
low output voltage levels.
The UPS transfers to Bypass mode if
supporting the load.
Rectifier Input Over Current
(Alarm 26)
Fast Beeping Alarm
The UPS has detected that rectifier
input current limits have been
exceeded.
The UPS transfers to Battery mode if
supporting the load.
Inverter Output Over Current
(Alarm 27)
Fast Beeping Alarm
The UPS has detected that inverter
output current limits have been
exceeded.
The UPS transfers to Bypass mode if
supporting the load.
DC Link Over Voltage
(Alarm 28)
Fast Beeping Alarm
The link or rail voltage has
exceeded its upper threshold limit.
The UPS transfers to Bypass mode if
supporting the load.