Section III
Operation
Page 3.12
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II S, 3.00
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9. This screen will show for a short time.
10. Then this screen will appear, indicating
that the UPS is now in normal operation.
3.6.2
Alarm Identity/History
As described in Paragraph 3.4.2.1, this is the
first Alarm History screen. It can be displayed by
pressing the
or
button, going through the
sequence of screens described in Paragraph 3.4.2
until this screen appears.
xx = month yy = day of the month uu = hour (on the 24–hour clock)
vv = minutes of the hour ww = seconds
tttt = alarm sequence number. 0 is most recent. Press
to scroll from
a higher number to 0 or press
to scroll from 0 to a higher number.
*
The identity of the alarm is abbreviated on the screen. The full identification
of each and corrective action are given in Table 3–2.
The principal use of the Alarm History screen is to identify the source of audible
alarms so that corrective action can be taken. When the audible alarm sounds, press
or
until this Alarm History screen appears. You may depress the ALARM SILENCE button
once to silence the alarm.
You may find it advantageous to leave the message screen on Alarm History during
normal operations. Then, if an alarm sounds, its identity will be seen immediately.
It may be helpful to view the Alarm History as a list of alarms, ordered by date and
time. Whenever the Alarm History screen is first selected, the first entry shown on the
screen is the latest entry on the list. Pressing
moves you toward the top of the list and
pressing
moves you toward the bottom of the list. See an example in Table 3–1.
Following is the beginning of a typical list of messages from the Alarm History
screen as the startup procedure is begun. The date, time, and alarm identity are shown on the
screen in the first Alarm History screen after system startup. By depressing
, you can
scroll the screen up one message at a time to the oldest (earliest) message. Thinking of the
Alarm History screens as part of a list will help you visualize what is happening.
Wait
Retransfer Pending
UPS
Operating Normally
xx/yy uu:vv:ww tttt
Alarm identity*