Troubleshooting
HP UPS R12000 XR Models Maintenance and Service Guide
5-9
HP CONFIDENTIAL
Codename: Sierra Part Number: 221273-001 Last Saved On: 7/31/02 8:59 AM
Table 5-1: Main Module (MM) and Electronics Modules (M1-M4) Active Alarms
continued
LCD Display
Possible Cause
Actions to Take
x
Alarms
Output Overload
The current load exceeds 100% of the
maximum capacity that this UPS
supports in Nonredundant mode. The
UPS issues an alarm but does not take
any other action for this level of
overload.
•
Reduce the load level to clear the
alarm. If the alarm persists after
load reduction, refer to the LCD
panel to determine which
electronics module is reporting
overload.
•
During overload, switch to Manual
Bypass mode. Replace the faulty
module or faulty supervisory
board.
x
Alarms
Program
Checksum Fail
The UPS detects that the Module Flash
Program Space has been corrupted.
This problem is usually caused by a
Flash Upgrade Failure.
•
This problem only occurs during
product upgrade.
•
Reflash the failing electronics
module with the latest upgrade
package.
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 problem could be caused by a
hardware failure.
Switch to Manual Bypass mode. Locate
and replace the faulty module.
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.
•
Determine if REPO was legitimate.
•
Verify the terminal block wiring and
site installation.
•
For more information, refer to the
section, “Remote Emergency
Power Off,” in Chapter 1.
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.
Verify that all modules are at the same
firmware revision level.
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 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 is a normal operation. This alarm
may be accompanied by other alarms
that indicate the root cause of the
problem.
continued