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10
SLC 500™ Fixed Hardware Style Controllers
Grounding Your Controller
In solid-state control systems, grounding helps limit the effects of noise due to
electromagnetic interference (EMI). Run the ground connection from the ground
screw of the controller (first screw from the left on the lower input terminal rung) to
the ground bus.
#14 AWG
Wire
SLC 500 Controller with 2-Slot Expansion Chassis
#14 AWG
Wire
ATTENTION
You must also provide an acceptable grounding path for each device in your
application. Exact connections will differ between applications. For more
information on proper grounding guidelines, refer to Industrial Automation Wiring
and Grounding Guidelines, Publication Number 1770-4.1 or the requirements
specific to your region:
• Europe: Reference the standards found in EN 60204 and your national
regulations.
• United States: Refer to NFPA 70E, Electrical Safety Requirements for Employee
Workplaces.
Publication 1747-IN008B-MU-P
SLC 500 Controller Only
Chassis Mounting Tabs
Chassis Mounting Tabs
The SLC 500 controller, other control devices, and the enclosure
must be properly grounded. All applicable codes and ordinances
must be observed when wiring the controller system.
#10 AWG
Wire
Ground
Bus
#10 AWG
Wire
Ground
Bus
#8 AWG
Wire
Earth
Ground
#8 AWG
Wire
Earth
Ground