8
Manual Bypass Operation (for UPS maintenance or replacement)
WARNING! For qualified service personnel only. Failure to follow the bypass procedure completely will not adequately power down
the UPS power/battery module, resulting in the continued risk of death or injury from potential contact with high voltage. The UPS's
power/battery module and detachable PDU are extremely heavy. This procedure requires several people to perform.
The UPS system includes a self-contained power/battery module along with an independent, detachable PDU with a bypass switch. This switch
allows qualified service personnel to remove the detachable PDU from the power/battery module for routine maintenance without disrupting
power to connected loads. While this switch is set to “BYPASS”, connected equipment will receive unfiltered AC mains power, but the
equipment will not receive battery power in the event of a blackout.
Note: An optional detachable PDU with hardwire input/output is also available separately from Tripp Lite. Contact Tripp Lite for details.
UPS Power/Battery Module Removal
STEP 1. Disable PowerAlert Software and disconnect communication cable(s) from the communication port(s) on the UPS power/
battery module.
STEP 2. Turn the detachable PDU's Bypass Switch to “BYPASS”.
STEP 3. Press the UPS's “OFF” Button , if the UPS is powered, until you hear a beep and see a “STANDBY MODE” message shown
in the LCD Display .
STEP 4. If an external battery module is connected to the UPS , disconnect it from the UPS.
The UPS power/battery module is now safely powered down and it can be detached from the PDU
to perform maintenance/replacement.
STEP 5: Remove the five 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/battery module forward,
and remove. The PDU will remain supported on the rackmount rails. Care should be taken in this process because the PDU will
not be secured to the rack with hardware of any kind.
• 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.
To reattach the PDU, reverse the process listed above.
E
D
C
B
A
Steps 1, 2 & 4
Step 3
E
B
A
D
C
Step 5
Step 6
WARNING! High Voltage! Risk of
electrical shock! SEE PAGE 9.
See Warning
Statements on
page 9!
WARNING! High Voltage! Risk of electrical shock! SEE PAGE 9.
