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Table 5-1: Main Module and Electronics Modules M1-M4 Active Alarms continued
LCD Display Possible Cause Suggested Action
x Alarms
Rectifier Input
Over Current
At least one electronics module
generates this alarm when it detects an
abnormally high input current. The
detecting module shuts down to protect
itself from damage. The UPS may have
transitioned into Automatic Bypass
mode due to the failure, depending on
the load levels present at the time of
the failure and the number of modules
affected.
This could be caused by a hardware
failure.
Contact Technical Support for
assistance.
x Alarms
Remote
Emergency Power
Off
The UPS detects a Remote Emergency
Power Off signal. The electronics
modules immediately shut down and
battery starts are inhibited.
Refer to the section, “Remote
Emergency Power Off Port,” in
Chapter 1 for more information.
x Alarms
Software
Incompatibility
Detected
At least one electronics module failed
the code validation check. The code
revision currently installed is
incompatible with the rest of the
system.
Contact Technical Support for
assistance.
x Alarms
UPS On Battery
This is an alarm and a status to
indicate that the UPS is currently
operating in Battery mode.
This is a normal operation. This alarm
may be accompanied by other alarms
that will indicate the root cause of the
problem.
x Alarms
UPS On Bypass
This is an alarm and a status to
indicate that the UPS is currently
operating in Bypass mode.
This alarm may be accompanied by
other alarms that will indicate the root
cause of the problem.
x Alarms
Utility Fail
The UPS detects that the utility source
voltage is not within an acceptable
range.
Verify the utility power. If the problem
persists, contact an electrician.
x Alarms
Utility Not Present
The UPS detects that the utility source
voltage is either not present, or so
abnormally low that the UPS classifies
it as not being present.
Verify the utility power. If the problem
persists, contact an electrician.
HP Uninterruptible Power System R12000 XR Models User Guide 5-9
HP CONFIDENTIAL Codename: Sierra Part Number: 146316-002 Last Saved On: 1/24/03 10:20 AM