Artesyn AXP1440, Installation And Use Manual, Page: 124 / 156

FRU Installation
122 AXP1440 Installation and Use (6806800H23U )
3. Using the appropriate tool, tighten the chassis retention screws on each side of the
PEM.
4. Using the appropriate tool, carefully remove the terminal block cover (plastic
covering) over the terminal block. The terminal block cover is attached to the terminal
block by two tabs with slots in the cover that insert into embossments in the terminal
block wall.
— Remove the cover by pressing the upper wall of the terminal block wall downward
and slip a flat-bladed screwdriver between the cover and the terminal block wall.
— Pry the cover tab up to relieve it from the embossment in the terminal block wall.
Once the upper cover tab is free from the terminal block embossment, the cover
should rotate downward and free itself from the lower embossment.
5. Install the DC power cables to the dual lug bolts on the PEM.
6. Locate the target power input cable’s terminals at the branch circuit or power
distribution unit. Close the external circuit breakers that provide DC feed power to the
PEM you are replacing.
7. Confirm whether the power to the PEM lug bolts is correct. Using a multimeter,
measure between the two lugs. Ensure that the voltage is of the correct polarity.
8. Close the breakers on the PEM. Make sure that the IS LED turns green.
6.5 Upper and Lower Fan Tray Modules
To prevent system damage, the operator must replace the fans within the recommended
service interval shown in the following table to prevent a decline in shelf operability. Make sure
the replacement FTM is available for exchange and ready to install.
When an FTM is taken out of operation, the system manager will compensate for the loss by
increasing the speed of the remaining fans, as needed. Please read the following caution before
replacing any of the FTMs
Service Interval for 1 FTM Temperature Range
Not recommended 40-55°C
Four hours 40°C maximum