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Chapter 6. Troubleshooting
The uninterruptible power supply is designed for durable, automatic operation. If a
potential operating problem occurs, the uninterruptible power supply issues an
alarm to alert you. Usually, an alarm that is displayed on the control panel does not
mean that the output power is affected. An active alarm or active notice is
accompanied by an audible sound.
Events are silent conditions that are recorded in the alarm history as status
information, such as Clock Set Done. Events do not require a response.
Notices and alarms are records of when events occurred and, if applicable, when
they were cleared.
v Notices, including active notices, are recorded in the alarm history. Active notices,
v Alarms, including active alarms, are recorded in the alarm history. Active alarms
Accessing alarms and conditions
The control panel provides troubleshooting information from two main menus on the
display:
v UPS status: Access to all active alarms and battery data
v Alarm history: Access to the most recent 50 events, which might include active
You can also access the uninterruptible power supply alarm history through a serial
cable connected to a computer.
Status menu
From the uninterruptible power supply Status menu, you can access the following
screens for troubleshooting information:
v Status summary: The status summary screen provides information about both
v Notice or alarm: A separate screen is displayed for each active notice or alarm.
v Battery status: The battery status screen indicates the battery charge mode, the
Note: When an alarm is active, the control panel automatically displays an active
alarm screen unless you enable the screen lock feature.
To access troubleshooting information by using the Status menu, complete the
following steps:
1. While the main menu is displayed, press the down (
© Copyright IBM Corp. 2010
such as Input Under/Over Frequency, are announced by a slow intermittent
beep. Notices do not normally require a response.
are announced by a continuous sound or a fast beeping. Examples are Shutdown
Imminent and Heatsink Overtemperature. Active alarms require a response.
and closed alarms
mode and load. When there is a critical alarm, the status summary screen
flashes and alternates displaying the alarm and battery status screens.
If there are no active alarms or notices, the message No Active Alarms is
displayed.
percentage that the battery is charged, and the runtime with the present load
level.
System Status menu, and press the OK button.
) button to scroll to the
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