Siemens SINAMICS S120 Equipment Manual page 194

Motor Modules with Cold Plate
8.5 Installing the Cold-Plate Modules on Customer-Specific Heat Sinks
Properties of the heat sink
AlMgSi 0.5 is recommended as the heat sink material.
The roughness of the external heat sink surface should be at least Rz 16 and the contact
surface between the heat sink and cold plate should have an evenness of 0.2 mm
(applicable to a height of 450 mm and width of 300 mm).
Note
The machine manufacturer can adapt the heat sink version to his special requirements. The
specified rated data for the Power Modules can only be achieved if the power losses can be
dissipated by the external heat sink under the specified general conditions.
NOTICE
When mounting, you must ensure that the threaded bolts do not damage the cold plate.
Remove the holder for securing the Control Unit.
If an additional component is to be flush-mounted to the left of the component, the holders
for securing the Control Unit must be removed.
Use suitable tools to lift the latching
device and push up the holder
194
Remove the holder Holder removed
Booksize cold-plate power units
Manual, (GH4), 03.2007, 6SL3097-2AJ00-0BP4