Emerson FB3000 설치 매뉴얼 - 페이지 7

{카테고리_이름} Emerson FB3000에 대한 설치 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Emerson FB3000 14 페이지. Remote terminal unit (rtu)
Emerson FB3000에 대해서도 마찬가지입니다: 현장 설치 매뉴얼 (12 페이지), 현장 설치 매뉴얼 (6 페이지), 현장 설치 매뉴얼 (18 페이지)

페이지 인쇄
Emerson FB3000 설치 매뉴얼

Wiring the Module

DANGER
Ensure the RTU is in a non-hazardous area. Never open the enclosure in a hazardous area.
DANGER
EXPLOSION HAZARD: Ensure the area in which you perform this operation is non-hazardous.
Performing this operation in a hazardous area could result in an explosion.
You can wire HART channels for different modes of operation.
Point-to-Point Mode
In Point-to-Point mode, the HART link allows both a 4-20mA analog current mode signal as well as
the modulated HART digital signal riding on top of it. Depending upon the HART device connected,
you can configure the channel as an AI (which means the 250 ohm resistor is enabled) or an AO
(which means the 250 ohm resistor is disabled).
Figure 1
channel only communicates to a single HART device. You choose whether a given channel serves as
an input or output in FBxConnect. The 24V internal loop power supply powers the HART devices.
The HART interface only sinks current, it cannot source current. As an output, each channel
simultaneously provides an analog current signal output (sink current only at 4-20 mA) and a HART
signal modulated on top of it.
Figure 1. HART Wiring – Point-to-Point Mode
HD
shows how to wire all four HART channels in point-to-point mode. In this case, each HART
HART Device
FB3000 RTU HART
®
I/O Module Field Installation Guide
D301918X012
June 2021
5