APC BX1500G User Manual

Use the buttons on the front panel of the Back-UPS and the display interface to configure the Back-UPS.



M

UTE

 button



P

OWER

 button



D

ISPLAY

 button



Display 

On Line: The Back-UPS is supplying conditioned AC power to connected equipment.

Power-Saving Function: The MASTER and CONTROLLED outlets are enabled. The power-saving feature is 
active when the master device goes into Standby or Hibernation mode.

Load Capacity: The load capacity percentage is indicated by the number of load bar sections illuminated. Each 
bar represents 20% of the load capacity.

Estimated Run Time: This indicates the battery runtime minutes that remain if the Back-UPS switches to 
battery power.

Battery Charge: The battery charge level is indicated by the number of load bar sections illuminated. When all 
five blocks are illuminated, the Back-UPS battery is fully charged. Each bar represents 20% of the battery charge 
capacity. 

Overload: The equipment connected to the Back-UPS is drawing more power than the voltage rating allows.

Event: The event counter indicates the number of events that occurred to cause the Back-UPS to switch to 
battery operation.

Automatic Voltage Regulation (AVR): The Back-UPS has “boost” and “trim” AVR that automatically regulates 
high or low levels of input voltage without using battery power. The Back-UPS also features AVR Bypass which 
temporarily deactivates the AVR circuitry when the input voltage is within normal range. This conserves battery 
power and helps to maximize battery life.

When illuminated, the Back-UPS is compensating for low input voltage.

When illuminated, the Back-UPS is compensating for high input voltage.

In: Input voltage.
Out: Output voltage.

System Faults: An internal system fault has occurred. The fault number will illuminate on the display. 
See “Specifications” on page 9.

Load: The total voltage, in watts and percentage used by the devices connected to the Battery Backup outlets.

Mute: An illuminated line through the icon indicates that the audible alarm is disabled.

Replace Battery: The battery is nearing the end of its service life. Replace the battery.

On Battery: The Back-UPS is supplying battery backup power to the connected equipment.

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