Voltage | This LED illuminates to indicate the UPS is compensating for a high util- |
Trim | ity voltage. |
Voltage | This LED illuminates to indicate the UPS is compensating for a low utility |
Boost | voltage. |
BATTERY 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
When the | |
Power | power to the connected equipment. |
Battery | The |
Charge | 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 |
| 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 |
| turns off output in order to protect the UPS from possible damage. |
Replace | Failure of a battery |
Battery | 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 |
| confirm the replace battery condition. The alarm stops if the battery |
| passes the |
SHUTDOWN 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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