Mounting The Control Unit For Segregated Heat Removal - Siemens SINUMERIK 840D sl Manual

Mounting
8.3 Mounting the control unit on the rear wall of the control cabinet
8.3.3

Mounting the Control Unit for segregated heat removal

Introduction
If you wish to perform segregated heat removal on the NCUs with cooling fins, the NCUs can
be mounted directly on the rear wall of the control cabinet without spacers.
Prerequisites
● The bushing for the cooling ribs (external heat sink) has been fitted in the rear wall of the
● Please ensure the area around the seal is both smooth and clean (② please see figure
Figure 8-3
68
control cabinet.
titled "Panel cutout").
Panel cutout
Manual, 07/2007, 6FC5397-0AP10-2BA0
NCU