APC SU3000RMXLI3U User Manual download pdf (Page 13)

Voltage

Trim

This LED illuminates to indicate the UPS is compensating for a high util-

ity voltage.

Voltage

Boost

This LED illuminates to indicate the UPS is compensating for a low utility

voltage.

ATTERY POWER

If the utility power fails, the UPS can provide power to the connected equipment from its internal

battery for a finite period. The UPS sounds an alarm—four beeps every 30 seconds—while operating

on-battery power. The alarm stops when the UPS returns to on-line operation.

On-Battery

Power

When the on-battery power indicator is lit the UPS is supplying battery

power to the connected equipment.

Battery

Charge

The five-LED display on the right of the front panel shows the present

charge of the UPS battery as a percentage of the battery capacity. When

all five LEDs are lit, the battery is fully charged. The LEDs extinguish,

from top to bottom, as the battery capacity diminishes. Refer to the figure

at left for the battery capacity threshold (it is not listed on the UPS).

As a low battery warning, any LEDs illuminated (for the given capacity)

flash and the UPS beeps. The low battery warning default setting can be

changed from the rear panel or through the optional PowerChute software.

Refer to Default Settings in this manual.

Overload

The UPS emits a sustained alarm tone and the LED illuminates when an

overload condition occurs (that is, when the connected equipment exceeds

the specified “maximum load” as defined in Specifications at the APC

web site). The alarm remains on until the overload is removed.

The UPS continues to supply power as long as it is on-line and the breaker

does not trip; but, the UPS will not provide power from batteries in the

event of a utility voltage interruption.

Disconnect nonessential equipment from the UPS to eliminate the over-

load. If a continuous overload occurs while the UPS is on-battery, the unit

turns off output in order to protect the UPS from possible damage.

Replace

Battery

Failure of a battery self-test causes the UPS to emit short beeps for one

minute and the replace battery LED illuminates. LED flashes indicate the

battery is disconnected. The UPS repeats the alarm every five hours. Per-

form the self-test procedure after the battery has charged for 24 hours to

confirm the replace battery condition. The alarm stops if the battery

passes the self-test.

HUTDOWN MODE (VIA SOFTWARE OR AN ACCESSORY)

In shutdown mode, the UPS stops supplying power to the connected equipment, waiting for the re-

turn of utility power. If there is no utility power present, external devices (such as servers) connected

to the computer interface or the accessory slot can command the UPS to shut down. This normally is

done to preserve battery capacity after the shutdown of protected servers. The UPS scrolls the front

panel indicators sequentially in shutdown mode.

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APC SU3000RMXLI3U User Manual Page 13

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