American Power Conversion InfraStruXureTM System manual Appendix a System Operation

Appendix A : System Operation

How to Transfer the UPS into Maintenance Bypass Operation

Select Help from the top-level menu screen of the PDU display interface and select the first help topic, Putting the PDU into Maintenance Bypass, or follow the

Note procedure below.

When servicing the UPS, transfer the UPS into maintenance bypass operation. When the UPS is operating in maintenance bypass, input power flows directly to the PDU and out to the load equipment.

1. Command the UPS into static bypass operation through the UPS display interface:

a.Press the ESC key at the top-level status screen to open the top-level menu.

b.Select Control on the top-level menu, and press the ENTER key.

c.Select UPS Into Bypass on the Control menu and, press the ENTER key.

Top-Level Menu

Control	Logging
Status	Display
Setup	Diags
Accessories	Help

Control Menu

UPS Into Bypass

Do Self Test

Simulate Power Fail

Graceful Reboot

Graceful Turn Off

Start Runtime Cal

Turn Load On

d.Confirm the selection on the next screen: select Yes, UPS into Bypass and press the ENTER key.

Confirmation Screen

Confirm

Yes, UPS into Bypass No, Abort

The UPS BYPASS LED illuminates and the following screens appear:

UPS has been

commanded to go into Bypass...

UPS load is in Bypass

Press any key...

InfraStruXure System—Installation and Start-Up 67