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This chapter serves as a troubleshooting guide when problems occur with the UPS. Solutions
for main and electronics module alarms are provided, as well as general solutions for UPS
problems that occur both during and after startup.
LCD Alarm Troubleshooting
Table 5-1 lists the possible alarms of the main module or electronics modules. When these
alarms occur, the LCD displays the number of alarms and the type of alarm. For each alarm
listed in the table, an explanation of the cause is provided, as well as a recommended action
to take to resolve the problem.
Table 5-1: Main Module and Electronics Modules M1-M4 Active Alarms
LCD Display
X Alarms
Ambient Over
Temperature
X Alarms
Automatic
Shutdown Pending
X Alarms
Batteries
Disconnected
Compaq Uninterruptible Power System R12000 XR User Guide
Possible Cause
The UPS triggers an alarm if the
ambient temperature inside the
detecting electronics module exceeds
the preset threshold of 80°C (176°F).
Other than the alarm, no UPS action is
currently associated with this condition.
Batteries are depleted beyond their
lower limits due to the UPS being on
battery for an extended period. The
load has been disengaged and the
system has entered the 30-second
powerdown mode.
This alarm is triggered by the one of
the following events:
•
The UPS detects that at least one
battery is installed incorrectly.
•
Not enough battery modules are
installed to support the current
load levels.
Troubleshooting
Suggested Action
Ensure that unit grills are not blocked
and fans are operational. Correct any
environmental conditions that may be
causing the condition. Verify that the
ambient temperature is less than 40°C
(104°F).
Contact Technical Support for
assistance.
This is a normal operation. The UPS
will restart when utility power is
restored.
Remove bezels and check that each
battery module is firmly seated in its
slot. Verify that the load does not
exceed 12 kW.
Contact Technical Support for
assistance.
5
continued
5-1
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