Specifications

Back-UPS Pro 500 BG500 120 Vac50
Troubleshooting
Problem and Possible Cause Solution
The Back-UPS will not turn on
The Back-UPS has not been turned on. Press the POWER ON button.
The Back-UPS is not connected to AC power, there is no
AC power available at the wall outlet, or the AC power is
experiencing a brownout or over voltage condition.
Make sure the power cord is securely connected to the wall
outlet, and that there is AC power available at the wall
outlet.Where applicable, check that the wall outlet is switched
on.
The battery is not connected.
Connect the battery. Refer to “Connect the Battery” section of
the Installation Manual.
In the event the Back-UPS receives no AC power and the battery
is connected, a cold-start can be initiated. Press and hold the
Power On button until the Back-UPS emits two beeps.
The Back-UPS is on, the Power On/Replace Battery LED flashes and the unit emits a constant tone
The battery is disconnected.
Refer to the “Connect the Battery” section of the Installation
Manual.
Connected equipment loses power
A Back-UPS overload condition has occurred.
Remove all nonessential equipment connected to the outlets. One
at a time reconnect equipment to the
Back-UPS.
The Back-UPS battery is completely discharged.
Connect the Back-UPS to AC power and allow the battery to
recharge for 12 hours.
Connected equipment does not accept the step-
approximated sine waveform from the Back-UPS.
The output waveform is intended for computers and peripheral
devices. It is not intended for use with motor driven equipment.
The Back-UPS may require service.
Contact SEIT Technical Support for more in depth
troubleshooting.
The Power On LED is illuminated and the Back-UPS beeps 4 times every 30 seconds
The Back-UPS is operating on battery power.
The Back-UPS is operating normally on battery power. At this
point the user should save all open files, and shutdown the
computer. When AC power is restored the battery will recharge.
The Power On LED flashes once every second while the Back-UPS beeps once every second
The Back-UPS battery has approximately two minutes of
remaining runtime.
The Back-UPS battery is near a total discharge state. At this
point the user should save all open files, and shutdown the
computer. When AC power is restored the battery will recharge.
The Back-UPS has an inadequate battery runtime
The battery is not fully charged.
The battery is near the end of useful life and should be
replaced.
Leave the Back-UPS connected to AC power for 16 hours while
the battery charges to full capacity.
As a battery ages, the runtime capability decreases. Contact
APC at the Web site www.apc.com, to order replacement
batteries.
The Building Wiring Fault LED illuminates
The building wiring presents a shock hazard that must be
corrected by a qualified electrical.
Do not operate the Back-UPS. Call a qualified electrician to
correct the building wiring fault.
Cannot find the UPS IP when searching via the Device IP
Wizard
Make sure the UPS and your PC is connected to the same
network (or the same Router which provides a DHCP server).
Reset the system to default by pressing the R
ESET button for 20
seconds.
Re-launch the Device IP Wizard and search for the IP again.
Note: If the UPS connected to a modem or router without a
DHCP server, it should be configured with a static IP Address.
Lost network IP, User name, or password
A set of network IP, User name and password is required
to access the Web page of Back-UPS on the Web browser
Press the Network R
ESET button for 20 seconds to reset the
network IP to DHCP mode, both user name and password to
“apc”, clear and reset all the web configuration to default.