IBM 11000 VA LCD 5U Installation And Maintenance Manual page 73

Table 14. Typical alarms and conditions (continued)
Alarm or condition
Battery Disconnected
(Alarm 199)
Fast Beeping Alarm
Low Battery Warning
(Alarm 56)
Fast Beeping Alarm
Shutdown Imminent
(Alarm 55)
Continuous Alarm
Low Battery Shutdown
(Alarm 174)
Continuous Alarm
Battery Test Failed
(Notice 191)
Slow Intermittent Alarm
Service Battery
(Alarm 149)
Fast Beeping Alarm
Utility Not Present
(Notice 59)
Slow Intermittent Alarm
Bypass Not Available
(Event 105)
No Alarm
Input AC Over Voltage
(Alarm 6)
Fast Beeping Alarm
Input AC Under Voltage
(Notice 7)
Slow Intermittent Alarm
Input Under/Over Frequency
(Notice 8)
Slow Intermittent Alarm
Site Wiring Fault
(Alarm 194)
Fast Beeping Alarm
Possible cause
The UPS does not recognize the
internal batteries.
The battery voltage is lower than the
batteries disconnected level that is
defined for the UPS. This might be
due to a blown fuse, intermittent
battery connection, or a battery cable
that is disconnected.
The remaining battery time or battery
capacity is lower than the battery low
warning level that is defined for the
UPS.
The communication to external
devices stops because the UPS has
entered a state in which it might
abruptly stop operating without further
notice unless utility power returns.
The UPS has exhausted the battery
capacity and shut down.
A weak battery string was detected
during the last battery test.
A faulted battery string has been
detected, and as a result, the charger
is disabled.
The utility power level has fallen
below the Utility Not Present
threshold (typically <25 to 50 V).
Utility is outside of the bypass limits
defined in the UPS.
The utility power voltage exceeds the
maximum operating range.
The utility power voltage is below the
minimum operating range.
The utility power frequency is out of
usable frequency range.
An alarm is triggered when the
difference between the ground and
neutral voltage is ≥25 V (tolerance
+50 V, -0 V).
Action
Make sure that all batteries are
correctly connected. If the condition
remains, contact your service
representative.
This warning is approximate. The
actual time to shutdown might vary
depending on the UPS load and
presence of an extended battery
module.
The alarm is issued when the
remaining battery time reaches zero.
All connected devices should have
already gone through an orderly
shutdown.
Resolve the condition that led to
shutdown, and then apply utility
power for 48 hours to recharge the
batteries.
This is a warning notice. Replace the
batteries soon.
Contact your service representative.
The UPS transfers to Battery mode if
it is supporting the load. The UPS
shuts down if it is not supporting the
load.
Check the bypass settings. See
"Configuration" on page 32.
The UPS transfers to Battery mode if
it is supporting the load.
The UPS transfers to Battery mode if
it is supporting the load. The UPS
shuts down if it is not supporting the
load.
The UPS transfers to Battery mode if
it is supporting the load.
Have a qualified electrician correct
the wiring problem. If the UPS is not
wired with a neutral wire, change the
Site Wiring Fault Alarm setting to
Disabled in the Settings menu (see
Table 8 on page 32).
Chapter 6. Troubleshooting
59