Filter
Top Products
Troubleshooting
Table 5-1: Main Module and Electronics Modules M1-M4 Active Alarms continued
LCD Display Possible Cause Suggested Action
x Alarms
Inverter Startup
Failure
This alarm is triggered by one of the
following events:
• The UPS detects that at least one
electronics module failed to
complete its startup sequence as
expected and was most likely shut
down. In this situation, the alarm is
more of a general status indicator.
It should be accompanied by
another alarm, indicating the
reason for the modules failure to
start.
• An electronics module has briefly
(for approximately one-quarter of a
second) disconnected from the
system and is attempting to restart.
In this situation, no other alarms
associated with this failure will
occur, with the exception of a
possible Internal Communications
Failure alarm.
The electronics module may not be
fully seated. Remove the bezels and
ensure that each of the electronics
modules is fully inserted into the
chassis.
Contact Technical Support for
assistance.
x Alarms
Inverter
Uncalibrated
At least one electronics module has not
been calibrated together as a set,
which is required for efficient
load-sharing operations.
An autocalibration is required, and the
UPS will automatically schedule the
autocalibration process on detection of
this condition.
Contact Technical Support for
assistance.
x Alarms
Level 2 Overload –
Phase A
The UPS detects that the current load
has exceeded 102% of the maximum
capacity available, which means it is
operating in Nonredundant mode.
The UPS will transfer to Bypass mode
after two minutes of this sustained load
level.
Reduce the load level to clear the
alarm. If the alarm persists after load
reduction, see the LCD panel to
determine which electronics module is
reporting overload.
Contact Technical Support for
assistance.
x Alarms
Level 3 Overload –
Phase A
The UPS detects that the current load
has exceeded 110% of the maximum
capacity available, which means it is
operating in Nonredundant mode.
The UPS will transfer to Bypass mode
after 30 seconds of this sustained load
level.
Reduce the load level to clear the
alarm. If the alarm persists after load
reduction, see the LCD panel to
determine which electronics module is
reporting overload.
Contact Technical Support for
assistance.
continued
5-6 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