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UPS Operation Instructions
6.6 UPS Reset
The EPO action or the following reasons such as inverter overtemperature, power-off overload, battery overvoltage and
excessive switching may result in the UPS power-off. After all appropriate measures have been taken to clear the faults
indicated by the alarm message appearing on the LCD, you can carry out the following steps to restore the UPS to normal
operation state.
1. Press the FAULT CLEAR button to make the system exit the EPO state.
2. Press the ON button for 2s.
1. The rectifier restarts, and the bypass supplies power to the load. When the rectifier starts, the fault indicator blinks. When the rectifier
runs in normal operation state (about 30 seconds later), the fault indicator will turn off.
2. 5 minutes after the overtemperature signal disappears, that is, when the overtemperature fault is eliminated, the rectifier will
automatically start.
3. After the EPO button is pressed, if the mains input is disconnected, the UPS will shut down completely. When the mains input is available,
the UPS will start and run in Bypass mode, and also the output is available.
6.7 Language Selection
The LCD menus are available in 17 languages: English, German, Italian, French, Spanish, Portuguese, Chinese, Japanese,
Swedish, Russian, Polish, Czech, Turkish, Arabic, Dutch, Finnish and Norwegian.
Procedures for selecting the language:
1. From the 'Output' menu, press F3 or F4 (left or right arrow) to select the 'Language' menu.
2. Press F5 (Enter) to move the cursor to the data window of the LCD.
3. Use F3 and F4 (up and down arrow) to select the required language.
4. Press F5 (Enter) to confirm.
5. Return to the 'Output' menu by repeatedly pressing F2 (ESC). At this point, all texts on the LCD will be displayed in the
selected language.
6.8 Changing Current Date And Time
Procedures for changing the system date and time:
1. From the 'Output' menu, press F3 or F4 (left or right arrow) to select the 'Settings' menu.
2. Press F5 (Enter) to move the cursor to the data window of the LCD.
3. Use F3 and F4 (up and down arrows) to select 'Date & time' option, then press F5 (Enter).
4. Move the cursor to the row in which the date and time are displayed, then press F5 (Enter).
5. Use F3 or F4 (up or down arrows), and enter the current time and date information.
6. Press F5 (Enter) to confirm, and then press F2 (ESC) to return to the 'Output' menu.
6.9 Control Password
The system provides the password protection for the UPS operation control. The default password of the background software
is '12345'. Only through the password verification can you conduct the UPS and battery test operation.
54
Note
User Manual 10H52188UM60 - Rev. 2 - 09/2012
Liebert NXC
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