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Quick Start Guide
Electrical considerations
Proper electrical installation is necessary to prevent errors due to improper
grounding and electrical noise. Shielded, twisted pair cable should be used for
best results in electrically noisy environments. Cable Type A is recommended
by F
OUNDATION
Power supply
The indicator requires between 9 and 32 Vdc (9 and 15 Vdc for FISCO) to
operate and provide complete functionality. The dc power supply should
provide power with less than two percent ripple.
Power conditioner
A Fieldbus segment requires a power conditioner to isolate the power supply,
filter, and decouple the segment from other segments attached to the same
power supply.
Grounding
Signal wiring of the Fieldbus segment cannot be grounded. Grounding out
one of the signal wires will shut down the entire F
segment.
Shield wire ground
To protect the Fieldbus segment from noise, grounding techniques for shield
wire usually require a single grounding point for shield wire to avoid creating a
ground loop. The ground point is typically at the power supply.
4
Fieldbus.
February 2019
Fieldbus
OUNDATION
Rosemount 752
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