HP R12000 XR - Manual (Page 47)

Troubleshooting
Table 5-1: Main Module and Electronics Modules M1-M4 Active Alarms continued
LCD Display Possible Cause Suggested Action
x Alarms
Battery Not
Charged
At least one battery string fails to reach
float voltage after charging for 24
hours. This could indicate a problem in
one or more battery modules. At least one battery module needs
replacing. Contact Technical Support
for assistance.
x Alarms
Battery n Test
Failed
The UPS detects a manual battery test
failure. A manual battery test failure is
reported when battery voltage is less
than 1.8 volts per cell during the
first 75 seconds of unscheduled Battery
mode operation.
The variable n indicates the slot in
which the faulted battery module is
installed. (For example, slot 1 is the
uppermost bay of the four-battery bay
slots.)
At least one battery module needs
replacing. Contact Technical Support
for assistance.
x Alarms
Bypass Not
Available
Bypass mode is currently unavailable
due to the voltage or frequency being
outside the valid operating range for
the UPS. Refer to the section, “Matching the
Utility Voltage,” in Chapter 3 to verify
that voltage settings are correct.
If the condition persists, contact an
electrician.
x Alarms
Calibration Failed
The UPS triggers this alarm when the
autocalibration process fails to
complete successfully. This could be
the result of an interruption from an
operating mode transition or because
of UPS load changes occurring while
autocalibration was in progress. The autocalibration process
reschedules and automatically restarts
once the UPS conditions are conducive
for the operation to complete.
Contact Technical Support for
assistance.
x Alarms
DC Link Over
Voltage
At least one electronics module detects
abnormally high rail voltage levels and
shuts down to protect itself and the
load from damage.
This could be caused by a hardware
failure.
Contact Technical Support for
assistance.
x Alarms
Fan Failure
At least one electronics module detects
that one or both of its cooling fans has
failed. The detecting module
immediately shuts down to protect its
heat sensitive components. Check the fans for blockage. If a fan is
blocked, remove the blockage, switch
to Maintenance Bypass mode, and
restart the system.
If a fan is not blocked and the problem
persists, contact Technical Support for
assistance.
continued
HP Uninterruptible Power System R12000 XR Models User Guide 5-3
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