SECTION III
Operation
Page 3.6
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3.4 Digital Monitoring Panel (continued)
3.4.2 Message Screens (continued)
If the UPS is operating on battery power,
this screen will appear instead. It can be
monitored to determine the battery run time
remaining during a power outage. Voltage
shown is link voltage.
3.4.2.1 Alarm History
This is a sequence of entries showing as
many as the last 1500 alarm and status condi-
tions that have occurred. To see them all, scroll
through the list depressing the
or
button
successively (see paragraph 3.6.2).
On this screen the letters are read as
follows:
xx
=
month
yy
=
day of the month
zz
=
year
uu
=
hour (on the 24-hour clock) vv
=
minutes of the hour
ww
=
seconds
aa
=
cycles
b
=
1/4 cycles
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.
3.4.2.2
Input Voltage:
This is a readout of input voltage between
phases.
-and-
This is a readout of input voltage phase
to neutral.
Time Left
hhH mmM ssS
Voltage XXX.X VDC
Xx/yy/zz tttt
uu :vv.ww.aab
Alarm identity
Input Vab
Input Vbc
Input Vca
Input Van
Input Vbn
Input Vcn
