Siemens SINAMICS S120 Equipment Manual page 172

Smart Line Modules (5 kW and 10 kW) with cold plate
7.5 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.
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.
Installation instructions
1. Before mounting, check the surface of the heat sink to ensure that it is not damaged.
2. For installation, M6 screw bolts and hexagon nuts/threaded pins (ISO 7436-M6x40-14 H)
are recommended.
3. To improve heat transfer, a heat-conducting medium must be used. Special spherical-
indented heat-conducting film must be used for this purpose. Every cold plate power unit
is supplied with heat-conducting film cut to the right size. Note the installation position of
the heat-conducting film (see diagram above). To make it easier to attach the heat-
conducting film, the screw bolts/threaded pins should already be inserted in the holes
provided on the heat sink.
4. The component is then mounted onto the external heat sink.
5. The tightening torque for the screw connection is 10 Nm.
Note
When a component is replaced, the heat-conducting film must also be replaced.
Only heat-conducting film approved or supplied by Siemens can be used.
Heat-conducting foil, 50 mm
Heat-conducting foil, 100 mm
Heat-conducting foil, 150 mm
Heat-conducting foil, 200 mm
Heat-conducting foil, 300 mm
172
Order No.
6SL3162-6FB00-0AA0
6SL3162-6FD00-0AA0
6SL3162-6FF00-0AA0
6SL3162-6FH00-0AA0
6SL3162-6FM00-0AA0
Booksize cold-plate power units
Manual, (GH4), 03.2007, 6SL3097-2AJ00-0BP4