Rockwell Automation 20B PowerFlex 700 Drive Components Replacement - Frame 8 - Manual (Page 69)

Rockwell Automation Publication 20B-IN024C-EN-P - June 2012 69
Component Replacement Procedures Chapter 3
Remove Components
1. Read and follow the
Safety Precautions on page 12 and Important Initial
Steps on page 13 .
2. Cut the wire ties for the wiring harness along the gate interface boards.
3. Note wire routing and location of sensors.
4. For the main control panel thermal sensor, remove the screw and nut on
the main control panel and disconnect the other end from the wiring
harness.
5. For the Heatsink thermal sensor, remove the screw on the Heatsink above
the SCR modules and unplug the other end from the wiring harness.
6. Label the wires and unplug the J8 connectors on each of the three gate
interface boards, and unplug the other end of this wiring harness at the J6
connector on the power interface board.
Install Components
1. Use isopropyl alcohol to thoroughly clean the mounting surface of the
control panel and heatsink, and the mounting surface of the thermal
sensors.
2. Apply a thin layer of supplied thermal grease to the metal side of the new
thermal sensors.
3. Install the thermal sensors with the screw and star washer. Hand tighten.
4. For the three gate interface boards, carefully route wires and connect to J8
on each gate interface board.
Be sure that the J8 connectors go to the correct IGBT.
5. Connect the other end of this wiring harness at the J6 connector on the
power interface board.
6. Secure the wire harnesses with plastic ties.
7. Replace all safety shields and enclosure covers before applying power to the
drive.
IMPORTANT This screw and nut on the main control panel are small. Do not
drop them.
IMPORTANT
This screw and nut on the heatsink are small. Do not drop them.