Cold Plate - Siemens SINUMERIK 840D sl Manual

8.2.4

Cold Plate

Cold plate cooling is a cooling system for SINAMICS S120 booksize power units. The flat
aluminum cooling plate located at the rear side of the devices serves as thermal interface.
Special advantages of the cold plate technology
1. It is particularly suitable for machine concepts in which a high level of dirt accumulates in
2. Advantageous for machine concepts for which liquid is already present in the process.
A distinction is made between:
● Cold plate with an external air heat sink
● Cold plate with an external liquid heat sink
● Cold plate with internal liquid heat sink
Guide for the SINUMERIK 840D sl machine configuring
Manual, 07/2006 Edition, 6FC5397-6CP10-0BA0
the machine vicinity. The reduction of the cabinet-internal heat loss simplifies the heat
dissipation of a sealed control cabinet (IP54).
This heat dissipation method is thus suitable for both internal and external cold plate
cooling of the power components.
The components of the drive group are typically all attached with screws to the cooling
fins of an air heat sink located outside the control cabinet.
The components of the drive group are typically all attached with screws to the liquid heat
sink located outside the control cabinet.
This is considered to be a liquid cooling using a connection adapter. The liquid passes
through the integrated channels in the cold plate.
Additional Information
8.2 Cooling Systems
8-5