APC BE750G User Manual

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Installation Guide  Back-UPS  BE750G Series
5
Status Indicators
Status
LED Indicator
Audible Indicator On
Audible Indicator 
Terminates
Power On 
The Back-UPS is supplying 
utility power to connected 
equipment.
The green LED illuminates.
None
N/A
On Battery
Back-UPS supplying battery 
power to battery backup outlets.
The green LED illuminates.The 
LED is not illuminated during 
the beeps.
Back-UPS beeps 4 times every 
30 seconds.
Beeping stops when utility 
power is restored or the 
Back-UPS is turned off.
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 utility 
power is restored or the 
Back-UPS is turned off.
Replace Battery
• The battery is disconnected.
• The battery needs to be 
charged, or replaced.
• Power On/Replace Battery 
LEDs flash alternately 
green/red.
• Replace Battery LED 
flashes red.
Constant tone
Constant tone
Back-UPS is turned off.
Overload Shutdown
While on battery power 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.
Overload Alarm
While on utility power the online 
power exceeds the Back-UPS 
capacity.
Power On LED 
illuminates green.
Constant tone
Beeping stops when equipment 
power plugs are moved from 
battery backup outlets to surge 
protection outlets.
Sleep Mode
While on battery power the 
battery is completely discharged. 
The Back-UPS will “awaken” 
once utility power is restored.
None
The Back-UPS beeps once 
every four seconds.
Beeping stops when: 
• Utility power is restored
• If utility power is not restored 
within 32 seconds
• The Back-UPS is turned off
Building Wiring Fault
The building wiring presents a 
shock hazard that must be 
corrected by a qualified 
electrical.
Building Wiring Fault 
LED illuminates red 
None
The Back-UPS is unplugged 
from the wall outlet or is plugged 
into an improperly wired outlet.