Specifications

Back-UPS Pro 500 BG500 120 Vac 19
Configuration
UPS Settings
Voltage Sensitivity Adjustment
Voltage sensitivity settings can be set using the following instructions or through the web-based management
interface. Refer to page 34 to change Power Settings or continue with the instructions below.
No-load Shutdown. The UPS will shut down to conserve energy if while operating on battery power the UPS
detects that connected equipment is using less than 15 W of energy for more than 5 minutes.
No-load shutdown can be enabled or disabled through Programming mode described in the Sensitivity Settings
section.
Sensitivity Settings. The Back-UPS will switch to battery power if the AC power is experiencing voltage
fluctuations. If the Back-UPS switches to battery power too frequently or too infrequently, adjust the transfer
voltage and sensitivity settings:
1. Verify that the Back-UPS battery is connected. Connect the Back-UPS to a wall outlet.
The Back-UPS should be turned off.
2. Press and hold the P
OWER ON/OFF button until the Power On/Off and Replace Battery LEDs flash
simultaneously. Release the button. The flashing green LED of the power button indicates that the Back-
UPS has entered into Programming mode.
3. Immediately press the P
OWER ON/OFF button to change the current setting. Press and release the POWER
ON/OFF button to scroll through available settings. Refer to the table for an explanation of the transfer
voltage sensitivity levels.
4. To exit Program mode wait five seconds and the LED will extinguish. Program mode is no longer active.
No-load
Shutdown
Transfer
Voltage
Setting
Input
Voltage
Range
Replace
Battery Red
LED
Watchdog
Green
LED
Power
Saving
Green
LED
Power Button
Green LED
Disabled Low 88-142 (NAM) Off Off On Flashing
Disabled
Medium
(factory
default)
92-139 (NAM) Off On Off Flashing
Disabled High 96-136 (NAM) Off On On Flashing
Enabled Low 88-142 (NAM) On Off On Flashing
Enabled Medium 92-139 (NAM) On On Off Flashing
Enabled High 96-136 (NAM) On On On Flashing