Options/Accessories
Action
Step
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
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
Installation Guide APC Silcon 480kW 400V UPS | 49 |