Allen-Bradley 2711P Technical Data Manual page 19

Figure 9 - Protective Earth and Functional Earth Connection for 700 to 1500 AC Terminals
Star Washer
Functional Earth Connection for 700 to 1500 AC Terminals
PanelView Plus 700 to 1500 terminals with an AC power input have these
features:
• Protective earth terminal on the power terminal block
• Functional earth/ground connection on the back of the display
IMPORTANT
L2/Neutral
Tapped Hole
Ground Lug
Bolt
Rockwell Automation Publication 2711P-TD001D-EN-P - February 2011
Wiring and Grounding Guidelines for PanelView Plus Terminals
On PanelView Plus 700 to 1500 AC terminals, you must connect both
protective earth and functional earth to ground.
ATTENTION: The functional earth and protective earth connections to
ground are mandatory. The functional earth/ground connection is required
for Electromagnetic Compliance (EMC) with the European Union (EU) EMC
directive for CE-mark conformance. The protective earth/ground
connection is required for safety and regulatory compliance.
L1 L2N
L1
Protective Earth
to Ground Bus
Ground Bus
Functional Earth
to Ground Bus
Enclosure Wall
To Grounding Electrode System
19