APC PX - Power Module Replacement

Power Module ReplacementPower Module Replacement
Power Module ReplacementPower 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 Symmetra
TM
must be placed in manual bypass mode, or the load equipment
must be switched off. To place the Symmetra
TM
in manual
bypass, switch the maintenance bypass switch to the on posi-
tion. When the Symmetra
TM
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.
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.
Chapter 8 - Module Replacement
8-3
Fig 8-8 Drop Lock Seating Tabs
Installing the Replacement Module
Refer to Chapter 5 for the power module installation proce-
dure.
Note: If Symmetra
TM
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
Drop Lock
Seating Tabs