Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 53)

Section 2A
Planning Your System Layout
2A-8
For information on noise prevention measures refer to page 7C-1. We
mention them here because these factors should be taken into consideration
during the beginning stages of cabinet design. These noise prevention
measures are covered in that section:
Signal Grounding
Mechanical Shielding
Shielded Cables and Twisted-pair Cables
Separation of Cable Routes
Noise Suppressors
Install the components in the cabinet with at least 100 mm (4 inches) of
clearance between the cabinet side wall and each component to allow air
flow inside the cabinet. Install the components in the cabinet with 50 mm
(2 inches) of clearance between them.
The system installer should also consider any local regulations regarding
component placement within a cabinet.
ATTENTION: Do not install modules above heat generating
devices (transformers, resistors, etc.)
Figure 2A.3 shows the minimum component spacing.
2A.5
Reducing Noise
2A.6
Installing the Components