Emerson Rosemount 3051CF Series Quick Start Manual page 18

Quick Start Guide
When wiring to the screw terminals, Emerson recommends using
crimped legs.
2. Ensure full contact with terminal block screw and washer. When
using a direct wiring method, wrap wire clockwise to ensure it is in
place when tightening the terminal block screw.
Note
Emerson does not recommend using a pin or ferrule wire terminal, as
the connection may be more susceptible to loosening over time or
under vibration.
6.1 Ground signal wiring
Do not run signal wiring in conduit or open trays with power wiring or near
heavy electrical equipment. Emerson
the outside of the electronics housing and inside the terminal compartment.
Use these grounds when transient protect terminal blocks are installed or to
fulfill local regulations.
Procedure
1. Remove the field terminals housing cover.
2. Connect the wiring pair and ground as indicated in
3. Replace the housing cover. Emerson recommends tightening the
cover until there is no gap between the cover and the housing.
4. Plug and seal unused conduit connections.
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a) Trim the cable shield as short as practical and insulate from
touching the transmitter housing.
Note
Do not ground the cable shield at the transmitter; if the cable
shield touches the transmitter housing, it can create ground
loops and interfere with communications.
b) Continuously connect the cable shields to the power supply
ground.
c) Connect the cable shields for the entire segment to a single
good earth ground at the power supply.
Note
Improper grounding is the most frequent cause of poor
segment communications.
™
provides grounding terminations on
October 2019
Figure 6-1.
Rosemount 3051