New installations -6, New installations – Rockwell Automation 1747-SN Remote I/O Scanner User Manual

Page 40

Publication 1747-UM013B-EN-P - January 2005

3-6 Installation and Wiring

New Installations

To ensure a proper earth ground of the cable shield, follow these
steps:

1. While the RIO link connector is plugged into the scanner and

lines 1 and 2 are connected, strip the cable back to expose
enough shield drain wire to reach a chassis mounting bracket.

2. Attach the ring terminal lug (supplied) to the end of the shield

drain wire.

3. Attach the ring terminal lug to the SLC chassis mounting bracket.

Note that for new installations the middle (shield) terminal is not
used when connecting to the scanner.

LINE 1 _______

LINE 2 _______

RIO Link
Connector

RIO Scanner

Line 1 ± Blue

Line 2 ± Clear

Chassis
Mounting
Bracket

RIO Link
Connector

Terminating
Resistor Last Physical
Device End

Terminating
Resistor
Scanner End

Shield Drain Wire

Shield ± Shield

SHIELD _____

For New Installations
Using Series B
Scanners

For Series A
Scanner
Retrofits

Shield Drain Wire

Ring Lug