American Power Conversion 480kW 400V manual Options/Accessories, Action, Display shows, System OFF

Options/Accessories

Action

Step 1-4 can be carried out with any of the parallel systems, however this will switch all systems into bypass operation.

1.Press on the keyboard

2.Press or on the keyboard until

3. Press on the keyboard

4.Press on the keyboard

All systems will transfer to bypass operation

Do not switch off any of the UPS systems until step 5-8 has been completed.

Display shows

Bypass operation :NO

Bypass operation

:YES

Bypass operation

Lamp indication on bypass panel

5.Check lamp indication on the Service Bypass Panel

6.Turn the external bypass switch (Q003) to position ”1“

7.Turn the output isolator (Q004) to position ”0“

8.Turn the output switches (Q002) to position ”0“

9. Open the front door and press both the green ”ON“ and the red ”OFF“ keys simultaneously in any of the systems

The acoustic alarm sounds for 30 sec.* Repeat for (all) other system(s).

10.Turn all input switches (Q001) to position ”0“ The red alarm LED below the display lights and the acoustic alarm sounds for 30 sec.

The green lamp (H003) above the bypass switch handle (Q003) lights

The green lamp (H004) above the output isolator (Q004 and the green lamps (H002) above the output switch handles (Q002) lights

The green lamps (H002) above the output switch (Q002) light and the green lamp (H004) above the output switch (Q004) lights

Now the lamps (H002) above the output switch handles (Q002) light and the green lamp (H004) above the output switch (Q004) lights

Display shows

** System OFF **

* The acoustic alarm can be reset by the key

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Installation Guide APC Silcon 480kW 400V UPS 49