Omron PROFINET NX-PNC202, User Manual

Page: 134 / 282

7 Wiring
7 - 8
NX-series PROFINET Coupler Unit User’s Manual (W623)
A Unit that has a ground terminal also has a DIN Track contact plate on the back of the Unit.
The DIN Track contact plate is connected internally to the ground terminal on the Unit.
This means that the ground terminal will be electrically connected to the DIN Track.
For information on the DIN Track contact plate on the PROFINET Coupler Unit, refer to
4-6 DIN Track
Contact Plate
on page 4-12. For information on the NX Units that have a ground terminal, refer to the
NX-series System Units User’s Manual
(Cat. No. W523).
This section describes how to ground the ground terminals on the Profinet IO Device Terminal.
The functional ground terminals that are provided on some Units and the DIN Track are grounded.
DIN Track Contact Plates
Grounding the Profinet IO Device Terminal
DIN Track contact plate
Ground terminal
Unit side
Connected inside the Unit.
PROFINET Coupler Unit
Additional NX Unit Power Supply Unit
Functional ground terminal
Ground
End Cover
DIN Track
Shield Connection Unit
Electrically connected to the DIN Track
through the DIN Track contact plate.
Functional
ground terminal