Siemens SINAMICS S120 Manual page 432

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Motor Modules Booksize

6.4 Motor Modules with cold plate

• Where components have four fixing points, the nuts must be tightened evenly by

alternating diagonally between them.

Support with the mechanical control cabinet design is available from:

Digital Factory, DF MC MF - WKC AS

TCCCC (Technical Competence Center Cabinets Chemnitz)

Postfach 1124

09070 Chemnitz

e-mail: cc.cabinetcooling.aud@siemens.com

Properties of the heat sink

We recommend using AlMgSi 0.5 as the heat sink material.

The roughness of the external heat sink surface should be at least Rz 16. 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 a width of 300 mm).

Machine manufacturers can adapt the heat sink version to their special requirements. The

specified rated data for the Motor Modules can only be achieved if the power losses can be

dissipated by the external heat sink under the specified general conditions.

Damage to the cold plate caused by incorrect mounting

The threaded bolts can damage the cold plate when it is being mounted.

• Do not damage the cold plate.

Booksize Power Units

Manual, (GH2), 07/2016, 6SL3097-4AC00-0BP8

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