Chapter 5 Operating Instructions 49
LIEBERT APM UPS Module And Parallel System 30kVA~150kVA User Manual
4. After finishing the maintenance of the main power module, confirm that the ID of the main power module is
different from that of other power modules in operation, and it is within 1 to 5. If they are the same, adjust to different
address bit.
5. Insert the main power module (the inserting interval for each module is longer than 10s), confirm that the Ready
switch of the main power module is in DISCONNECT status, and then tighten the screws at the two sides of the
power module.
6. Wait for 2 minutes, and then connect the Ready switch of the main power module. The power module will
automatically join the system operation.
Maintenance guidance for bypass power module
Note
The bypass power module cannot be maintained in battery mode.
If the system is normal mode and the bypass is normal:
1. Manually shut down the inverter, and the UPS transfers to bypass. Close the maintenance bypass switch and the
UPS transfer to maintenance bypass mode.
2. Press EPO button to ensure the battery current is 0. Open the battery circuit breaker or disconnect battery
terminals.
3. Disconnect the ready switch of each power module and remove all the power modules.
4. Remove the bypass power module that need maintenance or repair, wait for 5 minutes before servicing the bypass
power module.
5. After finishing the maintenance of the bypass module, insert the module. Wait for 2 minutes;
6) Press “fault clear” button; if the bypass indicator in the mimic panel turns steady green, it indicates that the bypass
works normally.
7. Insert the previously removed power modules confirm that the Ready switch of the power modules is in
DISCONNECT status, and then tighten the screws at the two sides of the power modules.
8. Connect the ready switch of all power modules (ensure at least 10s of interval for each module), let each module
enter ready status.
9. Turn off the maintenance bypass switch, and the system transfers to bypass.
10. Manually power on the inverter, and the UPS transfers to inverter.
6.11 Language Selection
The LCD menus and data display are available in 12 languages: Chinese, Dutch, English, French, German, Italian,
Japanese, Polish, Portuguese, Russian, Spanish and Swedish.
Perform the following procedure to select a language needed:
1. In main menu, press F1 (transfer window) to move the cursor to the first row of the menu in the LCD screen.
2. Press F2 (move left) or F3 (move right) to select the Language menu.
3. Press F1 (transfer window) to move the cursor to the UPS data window in LCD screen.
4. Press F2 (move up) and F3 (move down) to select the language needed.
5. Press F4 (confirm) to validate the selection.
6. Press F1 (ESC) repetitively to return to main menu. At this time, all the words in the LCD will be displayed in the
selected language.
6.12 Changing The Current Date And Time
To change the system date and time:
1. In main menu, press F1 (transfer window) to move the cursor to the first row of the menu in the LCD screen.
2. Press F2 (move left) or F3 (move right) to select the Function Setting menu.
