Artesyn Centellis 4410 (AXP-1410) Installation and Use (July 2014) - Manual (Page 83)

System Installation
AXP 1410 Installation and Use (6806800H70L) 83
Procedure
Have the following tools on hand before you begin these steps: standard Phillips screwdriver,
nut driver, torque wrench, multimeter, and lug kit.
1. Locate the target power input cable’s terminals at the branch circuit or power
distribution unit. Open the external circuit breakers that provide DC feed power to
the PEM.
2. Lock and tagout the circuit breakers on the branch circuit or power distribution
unit.
3. Using the appropriate tool, carefully remove the plastic covering over the terminal
blocks.
4. Confirm that there is no power to the PEM lug bolts. Using a multimeter, measure
between the two lugs and then measure between the chassis ground and each lug.
If the DC potential is 3.0VDC or less, then power is not present.
5. Attach the DC power cables (input and return) to the dual lug bolts on each PEM.
6. Using a torque wrench, tighten the nuts with a recommended torque setting of
35.5 to 38.5 inch-pounds. Make sure all DC leads are fastened securely.
7. Replace the plastic cover over the terminal blocks.
8. Verify that the circuit breakers are in the ON position.
Cables may or may not be preinstalled at the branch circuit or power distribution unit.
If the DC power cables are not connected to the branch circuit or power distribution unit,
connect the power cables to the PEMs before connecting the DC power cables to the
external power source.
If the DC power cables are connected to the branch circuit or power distribution unit, a
qualified service person must confirm that the power to the cables is terminated (off) before
continuing the steps to attach the cables to the PEMs.
In either case, use a multimeter to check the PEM end of the terminals to confirm there is no
power present.