Emerson 1410 Service Manual download pdf (Page 55)

System Installation

AXP 1410 Installation and Use (6806800H70D)

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.

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Emerson 1410 Service Manual Page 55