Best Power Fortress LI1020, Руководство пользователя

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If the green light is on, the display is showing the percent of the UPS’ power your
equipment is using. If your equipment requires more than 100% of the power your model
can provide, the UPS will sound an Overload alarm. (See
Section 6C .)
If the yellow light is on, the display is showing the estimated battery backup time left
— in other words, the number of minutes the UPS can continue running on battery power
until it shuts down.
The UPS shows this display when you have shut it down using the off or shutdown
command. You can send this command if you have connected a computer to the UPS’
RS232 port and if the UPS is in RS232 mode. For more information, call Best Power for
document FTS 502.
The UPS displays “bt” when you have started a battery test by pressing and holding the
key
. (See Section 4A.)This test determines whether the UPS is ready to run on battery
power. If the UPS fails the test, it sounds an “rb” (replace battery) alarm; see Section 6C .
Once the test starts, you can cancel it by pressing and holding the key; the display will
show “tc” for “test cancel.”
Some alarms cause the UPS to shut down; the UPS also shuts down when you use the off or
shutdown commands. (See the - - display above.) Once the UPS has shut down, you can
restart it using the key on the front panel. However, if utility power is not available from
the outlet the UPS is plugged into, the UPS will not restart, and it will show this display.
The UPS displays “OF” briefly when you turn the unit off.
The UPS displays “On” briefly when you turn the unit on.
When you silence an alarm, the UPS displays “Sh” briefly. You can silence an alarm by
pressing the key. Once you silence the alarm, the red light will be steady instead of
flashing.
The UPS shows this display when you cancel a battery test. See the “bt” display above.
Normally, you can start a battery test by pressing and holding the key. If the UPS cannot
do this test because the battery power is low, the display will show “t?.”
“Un” stands for “unsilence.” When you silence an alarm, the UPS shows the “Sh” display
shown above. If you want to hear the alarm again, you can press the key; the UPS will
sound the alarm and show “Un” briefly on the display.
71
L?
OF
15
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3B. Display
The UPS uses the two-character display above the lights to show you the unit’s status. If the red
light is on, the UPS flashes a two-letter alarm message. Press the key to silence the alarm;
then, find the alarm message in
Section 6C to identify the alarm. If the display shows a “b” or
“U” (V) with a line after it, the display is showing a bar graph of the battery charge or input volt-
age. See
Section 4C to display and interpret the bar graphs. The table below explains the other
displays you may see on the front panel.