Eaton 9910, User Manual

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TROUBLESHOOTING
Eaton 9910 UPS and EBM User's Guide
S
P-164000005 Rev 2
64
Table 15. Typical Alarms and Conditions (continued)
Action Possible Cause Alarm or Condition
Low Battery Shutdown
(Alarm 174)
Continuous Alarm The UPS has exhausted the battery
capacity and shut down. Resolve the condition that led to shutdown,
then apply utility power for 48 hours to
recharge the batteries.
Battery Test Failed
(Notice 191)
Slow Intermittent Alarm A weak battery string was
detected during the last battery
test. This is a warning notice. Replace the
batteries soon.
Service Battery
(Alarm 149)
Fast Beeping Alarm A faulted battery string has been
detected, and as a result, the
charger is disabled. Contact your service representative.
Utility Not Present
(Notice 59)
Slow Intermittent Alarm The utility power level has fallen
below the Utility Not Present
threshold (typically <25V to 50V). The UPS transfers to Battery mode if it is
supporting the load. The UPS shuts down if
it is not supporting the load.
Bypass Not Available
(Event 105)
No Alarm Utility is outside of the bypass
limits defined in the UPS. Check the bypass settings (see Table 4 on
page 26).
Input AC Over Voltage
(Alarm 6)
Fast Beeping Alarm The utility power voltage exceeds
the maximum operating range. The UPS transfers to Battery mode if it is
supporting the load.
Input AC Under Voltage
(Notice 7)
Slow Intermittent Alarm The utility power voltage is below
the minimum operating range. The UPS transfers to Battery mode if it is
supporting the load.
6000 VA Models: The UPS shuts down if it is
not supporting the load.
Input Under/Over Frequency
(Notice 8)
Slow Intermittent Alarm The utility power frequency is out
of usable frequency range. The UPS transfers to Battery mode if it is
supporting the load.
Site Wiring Fault
(Alarm 194)
Fast Beeping Alarm An alarm is triggered when the
difference between the ground and
neutral voltage is >25V (tolerance
+50V, -0V). Have a qualified electrician correct the
wiring problem. If the UPS is not wired with
a neutral wire, change the Site Wiring Fault
Alarm to Disabled in the Settings menu (see
Table 4 on page 26).
Remote Emergency Power Off
(Alarm 12)
Fast Beeping Alarm The external contacts in the rear of
the UPS are configured for remote
emergency power-off (REPO)
operation, and they are activated. The UPS de-energizes the load and enters
Standby mode. For more information about
REPO, see the Installation Guide for your
UPS model.