Rockwell Automation 20B PowerFlex 700 Drive - Frame 7 Components Replacement - Manual (Page 33)

Rockwell Automation Publication 20B-IN017B-EN-P - September 2011 33
Component Replacement Procedures Chapter 3
Remove Components
1. Read and follow the Safety Precautions on page 9 and Important Initial
Steps on page 11 .
2. Perform Remove Main Control Panel Assembly on page 21 .
3. Perform Remove Stacking Panel on page 22 .
4. Perform Remove Precharge Board Assembly on page 23 .
5. Verify that all wiring to Power Terminal Block is properly labeled and
then remove all nuts and disconnect accompanying wires from the
Power Terminal Block, including the DC+ and DC– Bus cables, the PE
jumper cable to chassis ground, and the PE Bus Bar (located over the
third and fourth Terminal Blocks).
6. Remove the single screws on
the right end of U, V, and W
Current Transducer bus bars.
The Current Transducer
assemblies do not need to be
removed.
7. Remove the U, V, and W Bus
Bars.
To do so, move the top end of the bar to the right and the bottom end of
the bar to the left, pull down on a angle, then rotate the bar 180° and
fully remove the bar.
TIP For easier removal of the PE jumper cable, flex the cable to
relieve the strain on lug.
Remove these nuts
and wiring.
Label and remove all
wiring here.
DC+ DC–
PE