Specifications

Back-UPS Pro 500 BG500 120 Vac 17
Display Interface
Status Indicators
Status LED Indicator
Audible
Indicator On
Audible Indicator
Terminates
Power On
The Back-UPS is supplying AC power to
connected equipment.
The green LED
illuminates.
None N/A
On Battery
Back-UPS supplying battery power to battery
backup outlets.
Default:
The green LED
illuminates but is
not illuminated
during the beeps
Default:
Back-UPS beeps
4 times every 30
seconds.
Default:
Beeping stops when AC
power is restored or the
Back-UPS is turned off.
The green LED
illuminates. The
LED flashes once
every 2 seconds
Back-UPS beeps
for 2 seconds
when entering
battery mode.
Beeping stops at the end of
the first two seconds. A
constant beep at the initial
two seconds indicates the
Back-UPS has entered the
battery mode.
Low Battery warning
The Back-UPS is supplying battery power to the
battery backup outlets and the battery is near a
total discharge state.
The green LED
illuminates with
rapid green flashes
every 1/2 second.
The Back-UPS
emits rapid
beeping every 1/
2 second.
Beeping stops when AC
power is restored or the
Back-UPS is turned off.
Battery Disconnected
The battery is disconnected or an unknown
battery pack is connected to the Back-UPS
The green LED
illuminates and the
LED flashes
red.
Constant tone
Back-UPS is turned off. or
battery is re-connected
Unrecognized Battery Alarm
While on AC power the Back-UPS cannot
identify the non-APC battery in the Back-UPS
The and LEDs
illuminate green/red
Constant tone
•Back-UPS is turned off
•When APC approved
battery pack APCRBC146-
LI is used
Unrecognized Battery Shutdown
While on power outage, the Back-UPS shuts
down completely due to an unknown battery
connected to the Back-UPS
The red LED
illuminates.
Constant tone
•Back-UPS is turned off
•When APC approved
battery pack APCRBC146-
LI is used
Replace Battery
The battery needs to be replaced.
The green and
red LEDs illuminate
alternately
Constant tone Back-UPS is turned off.
Network Status
When Back-UPS is connected to the Ethernet
network with 100M speed
The flashes green. None None
When Back-UPS is connected to the Ethernet
network with 10M speed
The flashes orange. None None
Energy Management
When Master Control Mode is enabled
The LED illuminates. None
When Master Control Mode
is disabled
Watchdog
When any Watchdog is enabled
The LED illuminates. None
When Watchdog is disabled
on both outlets
Overload Shutdown
An overload condition has occurred in one or
more of the battery backup outlets while the
Back-UPS is operating on battery power.
None Constant tone Back-UPS is turned off.