IBM TotalStorage SAN256N Director 2045-N16, Руководство по установке и обслуживанию, Страница: 113 / 157

Chapter 5. Hardware maintenance procedures
93
4. Tighten the four (4) captive screws to secure the power supply assembly to the
chassis.
5. Reconnect the power cord to the AC inlet connector on the power supply front panel.
6. Set the power supply’s power switch to ON.
The AC and DC LEDs, located on the front panel of the power supply assembly,
should light green, and the power supply fans should be rotating. If the LEDs do not
light, or if either of the LEDs light red, or the fans do not rotate, refer to “Power
system troubleshooting” in Appendix A.
7. Close and latch the cabinet rear door, if applicable.
NEMA L6-20P AC power plug replacement procedure (SANC40N
cabinet-North American)
Use the following procedures to replace a NEMA L6-20P power plug. Figure 41 on page
95 provides a visual reference.
Removing the NEMA L6-20P AC power plug
1. Power off the SAN256N director.
2. Set the customer’s circuit breakers to the Off position that supply AC power to the
SAN256N power cord being replaced.
3. Disconnect the AC power cable to be replaced from the customer’s AC receptacles.
4. Disconnect the power receptacle end of the cord from the SAN256N power supply
AC input receptacle.
5. Loosen, but do not remove, the two cable clamp screws that secure the power cable
in position at the rear of the power plug.
6. Loosen the three retaining screws on the front of the plug module and slide the black
housing away from the front of the plug module to expose terminal screws.
7. Remove the black wire from the pin marked “X” by loosening the slotted screw that
secures the wire to the plug pin.
8. Remove the white wire from the pin marked “Y” by loosening the slotted screw that
secures the wire to the plug pin.
9. Remove the green wire from the green color threaded screw by loosening the slotted
screw that secures the green (ground) wire to the plug pin.
10. Pull the cable assembly leads out from the X, Y, and ground terminal access holes
and remove them from the plug module.
Installing an NEMA L6-20p AC power plug
Note: Use specified AC power plugs only.
1. Remove the new NEMA L6-20P plug assembly from its packaging, and loosen the
three assembly screws, located on the front of the plug.
2. Remove the plug module from the housing.
Attention: Refer to safety notices before starting an installation.