BEST 510
COMMUNICATIONS
Your BEST 510 UPS communicates critical system status information to
you via front panel LED lights, an audible alarm and a DB-9 port on the
rear panel.
OVERLOAD LED
This light comes on when the UPS is overloaded. This function works
whether the UPS in running on AC or battery power.
FAULT LED
This light turns on when the UPS is in a fault condition.
BATTERY LOW/WEAK LED
This light is either
solid on
or
flashing.
The light is solid on when the
batteries inside the UPS have less than 2 minutes backup time left. The
light is flashing when the batteries are weak. If the battery is weak, the
light will keep on flashing until you depress the test button again or when
batteries recover. It also flashes after an auto test done when the UPS is
installed or if the test button is pushed.
BATTERY MODE LED
This light is on when the UPS is providing power to your equipment from
its batteries.
TEST SWITCH
This switch is used to test if the UPS operation is normal. Pressing the
switch will force the UPS to switch to its internal battery. The UPS will
then automatically run a self-diagnostic test. This switch will work only
when incoming AC line is available.
LOAD TEST/ALARM SILENCE SWITCH
To perform a load test, depress the switch when incoming AC power is
available. The LEDs on the front panel become a bar graph indicating how
much load is on the UPS. See Page 13 for further information. When AC
power fails, this switch becomes an “alarm silence” function that will stop
the warning beeps when this switch is depressed.
AUDIBLE ALARM
If the incoming AC (mains) line fails and the unit is running on battery, the
audible alarm will beep every four seconds. If the internal battery is low,
or if there is an overload, the audible alarm will beep once every second. If
the battery is low, the audible alarm cannot be silenced without turning
OFF the System ON/OFF Switch on the rear of the unit. If the UPS is in a
fault condition, the audible alarm will sound continuously.
DB-9 PORT/CONTACT CLOSURES
A complete description of your BEST 510’s remote communication
capabilities is provided on pages 14 and 15 of this manual.
Communications
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