American Power Conversion PX user manual Power Module Replacement, Replacement Module Verification

Chapter 8 - Module Replacement

Power Module Replacement

1. Remove the appropriate grill cover. The power module bays are labeled on the center spine of the frame, behind the grill covers.

Note: If replacing a non-redundant power module, or if the failed power module is the only power module, the SymmetraTM must be placed in manual bypass mode, or the load equipment must be switched “off.” To place the SymmetraTM in manual bypass, switch the maintenance bypass switch to the “on” posi- tion. When the SymmetraTM is in bypass mode, the load equip- ment is unprotected from power failure.

2. Use a flathead screwdriver to release the flip latch from the power module. See figure 8-7.

Drop Lock

Seating Tabs

Fig 8-7 Release the Flip Latch

3.Note the two drop lock seating tabs at the front of the power module. See figure 8-8. These drop locks hold the module firmly in the Power Array frame. When removing a failed power module, lift the front of the module slightly to release the drop lock seating tabs, and then pull the module from the bay.

4.Remove the power module from the frame.

5.Return the power module to the appropriate service pro- vider, or return it directly to APC for recycyling.

Fig 8-8 Drop Lock Seating Tabs

Installing the Replacement Module

Refer to Chapter 5 for the power module installation proce- dure.

Note: If SymmetraTM was placed in manual bypass in step 1 above, return to normal operation by switching the maintenance bypass switch back to the “off” position.

Replacement Module Verification

From the startup screen, press any key to open the top level menu screen. Follow the sequence in figure 8-9 to ensure that the new module is functioning properly. Information about each power module is accessed by pressing the Up or Down navigation key. Make sure all power modules display a status of “On & OK.”

Fig 8-9 Power Module Verification

8-3