Grounding – Rockwell Automation 1771-IE,D17716.5.7 ANAL.INPUT MOD. User Manual

Page 17

Installing the Analog Input Module

Chapter 3

3Ć7

Ground the drain wire and shield of the Belden No. 8761 or equivalent
cable (Figure 3.5) at one end of the cable only. Twist the drain wire and
shield into a single strand. The best ground for this connection is an I/O
chassis mounting bolt or stud.

Insulate the shield and drain wire at the other end of the cable using
electrical tape.

You may mount a separate terminal near the input module for DC
COMMON and SIGNAL RETURN wires. This terminal should be
mounted as close to the module as possible to minimize the length of
unshielded wire.

Refer to Wiring and Grounding Guidelines, publication 1770-4.1 for
additional information.

Figure 3.5

Grounding the Cable Shield

17798

Ground Shield at

I/O Chassis

Mounting Bolt

Shield and Drain

Twisted into

Single Strnd

Field Wiring Arm

Belden No. 8761

or Equivalent Wire Cable

Refer to the connection diagram for eact twistedĆpair terminal connections.

Grounding