American Power Conversion 240-320kW400V manual Bypassing the Single System UPS

Stop/Start UPS and Operating the External Service Bypass

2.5Operating the External Service Bypass Switch (single systems)

2.5.1 Bypassing the Single System UPS

Mains Load

Service Bypass

Switch

APC Silcon

UPS

Action
1.	Press	on the keyboard
2.	Press	or	on the keyboard until
3.	Press	on the keyboard
4.	Press	on the keyboard

5.Check light indication on the bypass panel

6.Set the external bypass switch (Q003) to position 1

7.Set the output switch (Q002) to position 0

8.Open the front door and press the green ON and the red OFF button simultaneously

The acoustic alarm sounds for 30 seconds*

9.Set the input switch (Q001) to position 0

The red alarm LED below the display lights up and the acoustic alarm sounds for 30 seconds*

*Use the key to reset the acoustic alarm

Display shows

Bypass operation

: NO

Bypass operation

: YES

Lamp indication on Bypass Panel

Green light (H003) above the bypass switch handle (Q003) lights up

Green light (H002) above the output switch handle (Q002) lights up

Only the light (H002) above the output switch handle (Q002) is now on

Display shows

**System OFF**

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User Guide APC Silcon 240-320kW 400V UPS	9