HP r12000 xr Benutzerhandbuch

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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 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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