Rockwell Automation 1797-Series ControlNet Ex Media Plannng Installation Manual - Manual (Page 35)

Publication CNET-IN003A-EN-P - January 2006
Plan a ControlNet Ex Media System 2-13
Application Considerations The following guidelines coincide with the guidelines for the
installation of electrical equipment to minimize electrical noise inputs
to controllers from external sources contained in IEEE standard
518-1982. When planning your cable system keep these installation
considerations in mind.
Understand Conductor Categories
Conductors can be divided into three categories.
ATTENTION
These guidelines apply only to noise coupling.
Intrinsic safety requirements for cable mounting are
of the highest priority.
Category Includes
1 ac power lines
High-power digital ac I/O lines
High-power digital dc I/O lines
Power connections (conductors) from motion drives to motors
2 Analog I/O lines and dc power lines for analog circuits
Low-power digital ac/dc I/O lines
Low-power digital I/O lines
ControlNet Ex communication cables
3 Low-voltage dc power lines
Communication cables to connect between system components
within the same enclosure