Rockwell Automation Publication 7000-UM202H-EN-P - November 2023 91
Chapter 2 Power Component Definition and Maintenance
Figure 83 - Thermal Sensor Replacement (Heatpipe Model)
Replacing Heatsinks/
Heatpipes
There are three different styles of heatsinks and one type of heatpipe used in
PowerFlex 7000 air-cooled drives, depending on thermal requirements:
• Aluminum type W heatsinks have a plurality of short internal fins along
the internal surfaces
• Aluminum type M heatsinks have internal fins with flat surfaces.
• Copper heatsinks have internal fins made from folded copper foil
• Heatpipes have a stack of aluminum fins
Thermal sensor
plugs into feedback
circuit board
Temperature feedback
air flow circuit board
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