HP R12000 XR 49

Troubleshooting

Table 5-1: Main Module and Electronics Modules M1-M4 Active Alarms continued

LCD Display

Possible Cause

Suggested Action

xAlarms

Internal

Communications

Failure

The UPS encounters an internal communication problem that is hindering its ability to successfully manage its activities and monitor the current electronics module status. The UPS will immediately transfer to Battery mode and issue the Low Battery alarm until communications are restored.

Switch to Maintenance Bypass mode, and contact Technical Support for assistance.

xAlarms

Inverter Contactor

Open

The UPS detects that an electronics module has timed out waiting for its load relay to close during a module hot-swap. The electronics module has failed to complete its startup sequence successfully. This alarm is accompanied by one or more alarms from the electronics module that indicates the root cause of the problem.

Select the Status option on the LCD menu. Scroll through and examine the additional alarms related to the failed electronics module for details on handling this condition.

x Alarms	At least one electronics module detects	Contact Technical Support for
	a hardware failure in its inverter,	assistance.
Inverter Fault	a hardware failure in its inverter,	assistance.
Inverter Fault	generates this alarm, and subsequently
	generates this alarm, and subsequently
	shuts down. 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.
	This could be caused by a hardware
	failure.

x Alarms	At least one electronics module	Reduce the load level to within UPS
	generates this alarm when it has	operational limits. Initiate a Manual
Inverter Output	generates this alarm when it has	operational limits. Initiate a Manual
Inverter Output	reached its maximum operating output	Bypass Recovery if the UPS remains in
Over Current	reached its maximum operating output	Bypass Recovery if the UPS remains in
Over Current	hardware current limits, as defined in	Bypass mode for more than
	hardware current limits, as defined in	Bypass mode for more than
	the EEPROM. The module has shut	30 seconds. See the LCD panel to
	down to protect itself and the load from	determine which electronics module
	damage. The UPS may have	generated the alarm.
	transitioned into Automatic Bypass	If the UPS was operating within its
	mode due to the failure, depending on	If the UPS was operating within its
	mode due to the failure, depending on	supported load limits when the problem
	the load levels present at the time of	supported load limits when the problem
	the load levels present at the time of	occurred, or if the problem persists,
	the failure and the number of modules	occurred, or if the problem persists,
	the failure and the number of modules	contact Technical Support for
	affected.	contact Technical Support for
	affected.	assistance.
		assistance.

		continued

HP Uninterruptible Power System R12000 XR Models User Guide

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