Best Power Fortress 750 VA Guide D'utilisateur page 9

Symbols, LEDs and Audible Beeps
The front panel LEDs and an audible beep indicate the unit status. The unit beeps whenever the
unit is on battery power or an alarm is present. See
In the figure below, bucking means that Fortress is reducing high input voltage, and boosting
means Fortress is increasing low input voltage.
Steady: Fortress is operating on AC line.
Steady: Fortress is operating on batteries.
AC Line Operation:
Battery Operation:
A, B, C and D indicate
A, B, C and D indicate
per cent of full load.
battery charge.
A, B, C & D, with D flashing,
A, B, C & D, = 75 - 100%.
load = 110% or higher.
B, C & D = 50 - 75%
A, B, C & D = 75 - 100%
C & D = 25 - 50%
A, B & C = 50 -75%
D = 0 - 25%; when D is
A & B = 25 - 50%
flashing, less than 2 minutes
of runtime remain.
A = 0 - 25%
Table 1: Symbols and LEDs
Symbols and LEDs
AC LINE
(Green)
LINE CORRECTION
(Green)
BATTERY MODE
(Yellow)
OVERLOAD, (D LED)
(Yellow)
WARNING, (D LED)
(Yellow)
Table 2
D
C = UPS shutdown due to output overload.
C
B = UPS failed the battery test.
B
B & C = UPS shutdown from communication at
A
A & B = UPS shutdown due to main relay failure or
A & C = UPS over-temperature shutdown.
A = UPS Fault; Fan Fail or Overcharge.
What It Means
Steady: Acceptable input power is present. The unit is
running on line power.
Off: No input power is present or the unit is switched off.
Blinking: The unit is boosting or bucking utility power.
Boost = Automatically increases low input power to prevent
the unit from switching to battery.
Buck = Automatically decreases high input power to prevent
the unit from switching to battery.
The unit is running on battery power.
Output Overload: Refer to Tables 2 and 3.
Replace the Battery or UPS Fault. Refer to Tables 2 and 3.
5
for information on beep coding.
Blinking: Fortress is bucking or
boosting input AC line.
Blinking = ALARM Condition
RS-232 , remote shutdown or SNMP.
short circuit on output.
ENGLISH