Dell ME Serie Instructions page 13

LED Description
Battery fault
DC power cooling module removal and installation
Removing a DC power cooling module
About this task
WARNING: For equipment using –(48–60) V DC power supplies, a qualified
electrician must perform all connections to DC power and to safety grounds. Do
not attempt connecting to DC power or installing grounds yourself. All electrical
wiring must comply with applicable local or national codes and practices. Your
warranty does not cover damage due to servicing that is not authorized by the
vendor. Read and follow all safety instructions that came with the product.
CAUTION: The system requires one power cooling module for normal operation.
When the system is turned on, remove and replace only one PCM at a time.
Steps
1. Turn off the PCM power switch.
2. If the vendor-supplied power cable is used, disconnect the cable from the facility
power, and go to step 4.
3. If the PCM is connected directly to facility power:
a) Disconnect the facility power from the PCM.
b) Remove the safety cover from the power terminal block.
c) Use a No. 2 phillips-head screwdriver to remove or loosen the three screws that
attach the cables to the PCM.
d) Disconnect the two power cables from the terminal.
e) Disconnect the ground cable from the terminal.
f) Secure the screws and washers back onto the terminals.
g) Install the safety cover onto the power supply power terminal block.
4. Press the release latch and slide the PCM out of the chassis.
CAUTION: The PCM is heavy; use both hands to guide it out of the chassis.
Color Status
• Off: Battery not present (if Battery Fault is also
off).
• Off: Non-recoverable battery fault (if Battery
Fault is also on).
Amber
• Off: Normal operation
• Flashing: Recoverable battery fault.
• On steady: Non-recoverable battery fault.
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