Manual Bypass Operation
UPS Power/Battery Module Removal
STEP 1. Disable PowerAlert Software and disconnect communication cables from the
communication ports
STEP 2. Press UPS's "OFF" Button
"BYPASS MODE" message shown in the LCD Display
STEP 3. Turn the detachable PDU's Bypass Switch
STEP 4. If an external battery module is connected to the UPS
The UPS power/battery module is now safely powered down and it can be
detached from the PDU to perform maintenance/replacement.
WARNING! High Voltage! Risk of electrical shock! SEE BELOW.
STEP 5: Remove the four screws that hold the detachable PDU to the power/battery module.
STEP 6: Using several assistants at each end, carefully pull the detachable PDU away from
the power/battery module. During this process, ensure that each section is properly
supported after they are separated. If the sections are detached in a rackmount
application, ensure that each section remains adequately supported by the UPS's
rackmount rails. Remove the rackmounting hardware from the front panel of the UPS;
slide the power and battery modules forward, and remove. If it is desired to leave the
detached PDU in the rack, hang the unit in the back of the rack on the installed PDU
hangers by the screws used to attach the PDU to the UPS system. (Refer back to page
3 for PDU hanger bracket installation).
If the sections are detached in a tower application, ensure that the PDU is supported
by the UPS's tower feet. Adjust the tower feet so they are as close together as possible.
Step 5
STEP 7: Loosen the screws
Tighten the screw
handling the PDU. Do not allow the contacts to touch any surface.
To reattach the PDU, reverse the process listed above.
201102160 93-2897.indb 10
(for power module maintenance or replacement) (continued)
on the UPS power/battery module.
A
, if the UPS is powered, until you hear a beep and see a
C
to "BYPASS".
B
in the contact cover
. Slide the cover over the contacts
A
B
to secure the cover. Warning: Use extreme caution when
D
, disconnect it from the UPS.
E
See Warning
Statements
below!
WARNING!
High
Voltage!
Risk of
electrical
shock!
SEE
BELOW.
Step 6
.
C
10
A
E
Step 1, 3, 4
D
Step 2
Step 6
A
C
D
B
A
Step 7
B
C
3/30/2011 9:30:49 AM