BATTERY POWER
If the utility power fails, the UPS can provide power to the connected equipment from its internal batteries for a finite period. The UPS sounds an
On | When the On Battery indicator is lit the UPS is supplying power to the connected |
Battery | equipment from its batteries. |
Battery Charge
Over-
load
Replace Battery
The
As a low battery warning, any LEDs illuminated (for the given capacity) flash and the UPS beeps continuously. The low battery warning default setting can be changed in terminal mode or through the optional PowerChute software. Refer to User Configurable Items, below. To see the runtime in minutes for your UPS model refer to the Runtime Table at the APC website.
The UPS emits a sustained alarm tone and this LED illuminates when an overload condition occurs (that is, when the connected equipment exceeds the specified “maximum load” as defined in the specifications at the APC web site).
The UPS may transfer to Bypass mode during an overload event. If this occurs,
the UPS can then be returned to online mode by pressing the button. Dis- connect nonessential equipment from the UPS to eliminate an overload.
Failure of a battery
SHUTDOWN MODE
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 via the computer interface port or the accessory slot can command the UPS to shut down. This nor- mally 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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