Best Power Fortress 750 VA Guide D'utilisateur page 12

Table 2: Audible Beeps
Number of Beeps
1 every 10 seconds
2 every 10 seconds
3 every 5 minutes
1 beep every second
Continuous
If your Fortress runs on batteries frequently because the input utility line varies often, you
may want to adjust your Fortress to accept wider voltage variations before switching to
batteries. Appendix A describes how to adjust the Fortress from the front panel in
response to specific utility power problems. You should have an electrician check your
nominal line voltage and determine if the problem is due to a "Surge" (high) voltage or
"Brownout" (low) voltage. Changing the setting without this knowledge could make the
problem worse.
To silence an alarm, press the alarm silence button on the front panel. The beep will stop,
but the alarm light will stay on. Note: Silencing the alarm does not solve the problem that
caused it. See Tables 2 and 3.
BestDock™
The Fortress's BestDock communication slot accepts optional communication cards, like
the internal BestLink SNMP/WEB adapter. The insertion of a card into the BestDock
communication slot replaces the normal communication channel from the Fortress's DB-9
Communication Port. The DB-9 port becomes the connection point for configuring the
card in the BestDock.
ENGLISH
Line Loss: The unit is on battery power. See Table 3 for more information.
Low Battery Alarm: The unit was running on battery power and shut down due
to very low battery voltage. The unit will restart automatically when acceptable
power returns.
Replace the Battery: The battery needs to be replaced. See "Replacing the
Batteries" on page 14.
Output Overload: Too much load equipment.
1) Output Short Circuit
2) Starting Fault: Input voltage out of range when unit is turned on.
3) UPS Fault: UPS internal failure
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What It Means