Filter
Top Products
Troubleshooting
Table 5-1: Main Module and Electronics Modules M1-M4 Active Alarms
LCD Display Possible Cause Suggested Action
x Alarms
Ambient Over
Temperature
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.
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.
x Alarms
Automatic
Shutdown Pending
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 is a normal operation. The UPS
will restart when utility power is
restored.
x Alarms
Batteries
Disconnected
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.
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.
x Alarms
Battery DC Over
Voltage
At least one electronics module detects
that battery voltage is abnormally high
while operating in Battery mode.
Switch to Maintenance Bypass mode,
and contact Technical Support for
assistance.
x Alarms
Battery Low
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.
This is a normal operation. The UPS
will begin the shutdown process.
x Alarms
Battery n Needs
Service
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.)
Contact Technical Support for
assistance.
continued
5-2 HP Uninterruptible Power System R12000 XR Models User Guide
HP CONFIDENTIAL Codename: Sierra Part Number: 146316-002 Last Saved On: 1/24/03 10:20 AM