Siemens Sinamics S120 Manual page 456

Booksize power units

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Table of Contents

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.

Help with the mechanical control cabinet design is available from:

Industry Sector, IA DT MC MF - WKC AS

TCCCC (Technical Competence Center Cabinets Chemnitz)

P.O. Box 1124

09070 Chemnitz, Germany

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 screw bolts can be damaged when mounting the cold plate.

• Do not damage the cold plate.

Booksize Power Units

Manual, (GH2), 04/2014, 6SL3097-4AC00-0BP6