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Installing an MX2008 Three-Phase Wye AC Power Cord
To install a three-phase wye AC power cord:
1. Switch off the customer site circuit breakers to the PDM being removed. Make sure that the voltage
across the AC power source cord is 0 V and that there is no chance that the cord might become active
during the installation process.
2. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to
one of the ESD points on the chassis.
3. Switch all the power switches on the PSM faceplates to the off (O) position.
NOTE:
After powering off a PSM, wait at least 60 seconds before turning it back on.
4. Using a number 2 Phillips (+) screwdriver, loosen the four screws on the cover of the metal wiring
compartment that protects the AC terminal block.
5. Remove the cover of the metal AC wiring compartment.
6. Unscrew the retaining nut from the AC power cord.
7. Place the retaining nut inside the metal wiring compartment.
8. Put the wires of the AC power cord through the hole of the retaining nut and rubber grommet.
9. Put the wires of the AC power cord through the hole of the metal wiring compartment.
10. Connect the wires to the AC terminal block on the three-phase delta AC PDM (see
Figure 121 on page
301). Loosen each of the input terminal or grounding point screws, and insert the
wire into the grounding point or input terminal, and tighten the screw (see
approved AC wire gauge).
To insert wires into the terminal block that serves six PSMs:
a. Insert the grounding wire into the grounding point labeled GND.
b. Insert the wire labeled L1 into the input terminal labeled A1.
c. Insert the wire labeled L2 into the input terminal labeled B1.
Table 104 on page 302
for
300
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