Quick Start Guide
9
March 2018
4.4 Signal termination
Every Fieldbus segment requires terminators at each end of the segment.
Failure to properly terminate segments may cause communication errors with
devices on the segment.
4.5 Transient protection
Transient protection devices require the transmitter be grounded for proper
operation. Refer to Grounding for further information.
4.6 Grounding
Grounding terminations are provided on the sensor module and inside the
terminal compartment. These grounds are used when transient protect
terminal blocks are installed or to fulfill local regulations.
1. Remove the FIELD TERMINALS housing cover.
2. Connect the wiring pair and ground as indicated in Figure 6.
a. The terminals are not polarity sensitive.
b. The cable shield should be:
Trimmed close and insulated from touching the transmitter housing
Continuously connected to the termination point
Connected to a good earth ground at the power supply end
Figure 6. Wiring
3. Replace the housing cover. It is recommended the cover be tightened until
there is no gap between the cover and the housing.
4. Plug and seal unused conduit connections.
A. Connect shield back to power supply ground C. Ground for transient protection
B. Trim shield and insulate D. Insulate shield
NOTICE
The enclosed pipe plug must be installed in unused conduit opening with a minimum of five thread
engagement to comply with explosion-proof requirements. Refer to the Rosemount 3051S
F
OUNDATION Fieldbus Reference Manual for more information. This manual is also available
electronically on Emerson.com/Rosemount
.
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