Emerson 480V ユーザーズマニュアル

Pop-up prompt windows appear when the user must confirm a choice or perform an operation. This 

section describes the pop-up windows.

If the bypass voltage or frequency exceeds the synchronized range and 

utility voltage or frequency is normal, the inverter cannot be in syn-

chronization with the bypass, and the output can transfer to inverter 

only after an interruption of about 15ms when the user presses the 

INVERTER ON button. Before transferring, the system will let the 

user confirm whether the interruption can be accepted, as shown at right. If the bypass voltage 

returns to normal before the user makes confirmation, the UPS will transfer to inverter mode auto-

matically. At the same time, the prompt window will close.

If the bypass voltage or frequency exceeds the synchronized range and 

the UPS is in inverter mode, the user must confirm and accept the 

power interruption danger before pressing the INVERTER OFF but-

ton to shut down the output of the inverter. The user can also cancel 

the shutdown operation, as shown at right. If the bypass voltage 

returns to normal before the user makes the confirmation, the UPS 

will transfer to bypass operation mode automatically, and at the same time the prompt window will 

close disappear soon.

When a system self-test is completed, a pop-up window reports the 

results of the test, as shown at right. 

• Press the F4 (Enter) key and the pop-up window closes.

When a battery capacity test is started from the Command menu, the 

battery will be discharged to low-battery warning level. The Liebert 

NX asks for confirmation before the test is started, as shown at right.

• To confirm the choice and begin the battery capacity test, press the 

F4 (Enter) key and the pop-up window disappears.

• To cancel the test, press the F1 (ESC) key. The pop-up window closes.

When a battery capacity test is started from the Command menu and 

the battery self-test criteria are not met, the Liebert NX will not per-

form a battery test. User should check whether the battery state is 

boost charging and whether the load level is greater than 20 percent.

• Press the F4 (Enter) key and the pop-up window closes.

When a battery refreshening charge is started from the Command 

menu and battery refreshening condition fails to meet requirements, 

the Liebert NX will not perform a battery refreshening charge. User 

should check if boost charging condition has not met the test criteria, 

such as (No battery, charger failed, etc.).

• Press the F4 (Enter) key and the pop-up window closes.

NOTE
For a battery capacity test to function properly, the load must be between 20% and 100%.