Compaq R12000 XR User Manual page 48

Troubleshooting
Table 5-1: Main Module and Electronics Modules M1-M4 Active Alarms
LCD Display
X Alarms
Battery DC Over
Voltage
X Alarms
Battery Low
X Alarms
Battery n Needs
Service
X Alarms
Battery Not
Charged
X Alarms
Battery n Test
Failed
X Alarms
Bypass Not
Available
5-2
Possible Cause
At least one electronics module detects
that battery voltage is abnormally high
while operating in Battery mode.
The UPS detects that the current
battery voltage level has dropped
below the preset threshold configured
in the EEPROM for this alarm. This is
to be expected when operating in
Battery mode and when the batteries
discharge.
The UPS detects a battery fuse failure
or an automated battery test failure. An
automated 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 string fails to reach
float voltage after charging for 24
hours. This could indicate a problem in
one or more battery modules.
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.)
Bypass mode is currently unavailable
due to the voltage or frequency being
outside the valid operating range for
the UPS.
Suggested Action
Switch to Maintenance Bypass mode,
and contact Technical Support for
assistance.
This is a normal operation. The UPS
will begin the shutdown process.
Contact Technical Support for
assistance.
At least one battery module needs
replacing. Contact Technical Support
for assistance.
At least one battery module needs
replacing. Contact Technical Support
for assistance.
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.
Compaq Uninterruptible Power System R12000 XR User Guide
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