Description; Cold-Plate Cooling - Siemens SINAMICS S120 Equipment Manual

Description

1.1

Cold-plate cooling

Cold-plate cooling is a cooling method for SINAMICS S120 booksize power sections. On the
rear of the device is a flat aluminum cold plate, which acts as a thermal interface.
There are three methods of cooling the SINAMICS power sections:
1. Cold plate with internal liquid cooling (in preparation)
Liquid cooling via a connection adapter, whereby the liquid is conveyed through integrated
channels in the cold plate.
2. Cold plate with external air heat sink
The components in the drive line-up are normally all screwed onto heat sink fins outside the
cabinet.
3. Cold plate with external liquid heat sink
The components in the drive line-up are normally all screwed onto a liquid heat sink outside
the cabinet.
Benefits of cold-plate cooling
1. Particularly suitable for machine configurations involving a high degree of contamination
2. Particularly suitable for machine configurations in which liquid is already used for in-
Booksize cold-plate power units
Manual, (GH4), 03.2007, 6SL3097-2AJ00-0BP4
in the vicinity of the machine (e.g. in the textiles or timber industry). Reducing cabinet-
internal thermal losses facilitates cooling within a sealed cabinet (IP54).
process cooling. This cooling method is also suitable for internal/external cold-plate
cooling for the power components. The cooling liquid must have certain properties (see
Chapter: "Cooling medium").
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