APC Back-UPS 500 User Manual download pdf (Page 7)

User Manual Back-UPS BC500-RS, BC650-RS

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

POWER ON/OFF button until the LED continuously

flashes green. Release the button. The Back-UPS is now in Program

mode.

3. The LED will flash once, twice, or three times per second, and emit

audible beeps to indicate the current sensitivity level. The Back-UPS

will beep to indicate that No-load Shutdown is enabled. Refer to the

table for an explanation of the transfer voltage sensitivity levels.

4. Press the

POWER ON/OFF button within two seconds to change the

setting. Continue pressing the button until the desired setting is reached.

If the button is not pressed within five seconds, the Back-UPS will exit

the Program Mode.

5. To select LOW sensitivity, press the

POWER ON/OFF button until the

LED flashes green once per second.

6. To select MEDIUM sensitivity, press the

POWER ON/OFF button until the

LED flashes green two times per second.

7. To select HIGH sensitivity, press the

POWER ON/OFF button until the

LED flashes green three times per second.

8. To exit Program mode wait for five seconds, the LED will extinguish.

Program mode is no longer active.

LED

Flashes

Audible

Indicator

Voltage

Sensitivity

Setting

Input

Voltage

Range

No-load

Shutdown Recommended Use

Once

per

second

None Low 160-278 Disabled The Back-UPS will switch to

battery power less often. Use this

setting for equipment that is not

sensitive to low or high level

voltage levels or minor voltage

waveform distortions.

Twice

per

second

None Medium 180-266 Disabled Use when the input utility power

is normal, without any fluctuation

in voltage levels.

Three

times

per

second

None High 196-256 Disabled The Back-UPS will switch to

battery power during any small

fluctuation in voltage. Use this

setting for equipment that is

sensitive to low or high level

voltage levels or minor voltage

waveform distortions.

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APC Back-UPS 500 User Manual Page 7

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