03.06
3.2 Installation of the SINUMERIK 840D
3-34
© Siemens AG, 2006. All rights reserved
SINUMERIK 840D Configuring Manual NCU (PHD) – 03.06 Edition
Certain distances must be maintained with regard to cable routing and open
ventilation when mounting the NCU box.
A
A
Space for exhaust air
Space for supply air
24.8
23
208
24.8
49.6
130
100443
127
20
100
466
480
8
Fig. 3-4 NCU cassette for Sinumerik 840D, dimensional drawing and installation instructions
Maintaining
distances
3 Structure and Installation