Best Power Fortress LI1020, User Manual

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Make sure the UPS is plugged in, and
leave it plugged in overnight to recharge
the batteries. Then, restart the UPS.
Note: You cannot restart the UPS during
a power outage because it must have
utility power to operate and to recharge
the batteries.
Shut down the equipment connected to
the UPS. Press the key for a few
seconds. If the UPS does not start, leave
the UPS plugged in overnight. If the
UPS still does not start, call the nearest
Best Power office.
Since this is a normal part of the UPS’
operation, you do not need to react to
this condition. If the UPS discovers a
problem, it will sound an alarm.
The UPS will continue to run on battery
power until input voltage is normal or
until the UPS runs out of runtime and
sounds an “Lb” (Low Battery shutdown)
alarm. If the UPS runs on battery power
too often, try changing the UPS’
sensitivity to power problems. (See
Section 7E .)
• See Section 5B for a description of the
modes and how to change the modes.
• Change the baud rate of your computer
or terminal. To change the UPS’ baud
rate, see
Section 7F .
• Remove any extension cables. Use the
cable Best Power provided to connect
the UPS directly to the computer.
• Make sure the end of the cable marked
“UPS” is plugged into the UPS, and the
other end is plugged into the computer.
The UPS’ batteries are completely
discharged, and utility (AC input)
power is not available to the UPS.
(The batteries may have been
discharged because the UPS was in
storage or because the UPS ran on
battery power for a long time.)
• The UPS may have shut down
because its batteries ran down
during a long power outage.
• The UPS may have been
overloaded.
• There may be a UPS problem.
The UPS is doing a system test to
make sure it can run on battery. The
unit does this test every 30 days; if it
finds a battery problem, it will sound
an “rb” alarm. You can also start this
test using the key.
The input voltage the UPS is
receiving from your wall outlet is
either very high or very low, so the
UPS is running on battery power to
make sure your equipment receives
quality power.
• The UPS may not be in the correct
communication mode.
• The UPS baud (communication)
rate (normally 1200) may not match
your computer’s baud rate.
• Extensions with incorrect pinouts
may have been added to the
interface cable Best Power provided.
• The Best Power-supplied cable
may have been plugged in
incorrectly.
The UPS turns
itself off
immediately after
you start it.
The UPS is
completely off
and will not start.
The yellow light
is blinking.
The green light is
blinking while
the yellow
Battery light is
on.
The UPS will not
communicate.
What to Do Possible Reason for Problem Problem