Rockwell Automation PF700 PowerFlex 700 Drive Components Replacement - Frame 9 - Manual (Page 80)

80 Rockwell Automation Publication 20B-IN025B-EN-P - January 2011
Chapter 3 Component Replacement Procedures
Precharge SCR Module and
Diode - DC Input Only See Chapter 1 - Drive Components to locate the component detailed in these
instructions.
Remove Components
1. Read and follow the Safety Precautions on page 8 and Important Initial
Steps on page 10 .
2. Perform Remove Main Control Panel on page 22 .
3. Perform Remove Stacking Panel on page 25 .
4. Locate the Precharge SCR module and Diode to be replaced.
5. Label and remove all DC+ power cables and all connected wires from the
two busbars.
6. Remove the two busbars and carefully set aside.
7. For the Precharge SCR module, remove its connector wire.
8. Remove the SCR module and Diode, and properly discard them.
Install Components
1. Using isopropyl alcohol, thoroughly clean the Heatsink mounting surface
where the SCR module and Diode will be installed.
2. Verify the mounting surfaces of the new SCR module and Diode are clean.
If not, clean with isopropyl alcohol.
Busbars
SCR Diode