34 Rockwell Automation Publication 20B-IN017B-EN-P - September 2011
Chapter 3 Component Replacement Procedures
8. Remove the screws and accompanying wires for
R, S, and T Bus Bars at the SCR.
9. Remove the R, S, T Bus Bars.
10. Remove at least two terminal blocks from the
DIN rail by pushing down on the metal tab on
top of the terminal block while lifting the bottom of the terminal block
out toward you and up.
11. Remove the three screws for
the DIN rail, two toward the
left end and one at the right
end.
12. Remove the DIN rail.
13. Unplug Fan wire.
14. Remove the 12 screws at the exterior of
fan cover.
Do not remove screws near Fan cable at
this time.
15. Remove the Fan cover and the Fan.
You may need to pry the cover from the
drive enclosure.
16. Remove the four screws near Fan cable
that hold the Fan and cover together.
Install Components
1. If needed, remove the old gasket from Fan cover and replace gasket.
2. Mate cover and new Fan, positioning Fan cable in notch of opening in
cover.
TIP
Label Bus Bars for correct
orientation when reinstalling later.
TIP
If desired for ease of access to individual terminal blocks,
remove barriers between terminal blocks by pulling out on a
slight down- or upward angle.
TIP
Slide remaining
terminal blocks
sideways as needed
to access screws.
R, S, T Bus Bars at SCR
Screws at Left End of DIN Rail
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