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Emerson Output Wiring - Model 1700/2700, Analog Transmitters, Chapter, 4.1Overview

Models: 2700 1700

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Chapter 4

Output Wiring – Model 1700/2700

Analog Transmitters

4.1Overview

This chapter explains how to wire outputs for Model 1700 or 2700 transmitters with the analog outputs option board (output option code A).

Note: If you do not know what outputs option board is in your transmitter, see Section 1.4.

It is the user’s responsibility to verify that the specific installation meets the local and national safety requirements and electrical codes.

4.2Output terminals and output types

Table 4-1describes the outputs and communication protocols available for the Model 1700 or 2700 analog transmitter.

Table 4-1Terminals and output types

Terminals	Model 1700 output type	Model 2700 output type	Communication

1 & 2	Milliamp/Bell 202(1)	Milliamp/Bell 202(1)	HART

3 & 4	Frequency	• Frequency (default)	None
		• Discrete

5 & 6	RS-485	RS-485	• HART (default)
			• Modbus

(1)The Bell 202 signal is superimposed on the mA output.

4.3Output wiring

Output wiring requirements depend on how you will use the analog functionality and the HART or Modbus protocol. This chapter describes several possible configurations:

•Figure 4-1shows the wiring requirements for the mA output (terminals 1 and 2) and the frequency output (terminals 3 and 4).

•Figure 4-2shows the wiring requirements for the mA output (terminals 1 and 2) if it will be used for HART communications in addition to the mA signal.

•Figure 4-3shows the wiring requirements for RS-485 communications using the RS-485 output (terminals 5 and 6).

•Figure 4-4shows the wiring requirements for connecting the transmitter to a HART multidrop network.

Before You Begin

Installing the Transmitter

Sensor Wiring

Output Wiring – Analog

Installation Manual

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Emerson Output Wiring - Model 1700/2700, Analog Transmitters, Chapter, 4.1Overview, 1 Terminals and output types

Contents

Model 2700 Transmitters Micro Motion Model 1700 andInstallation Manual Installation ManualPage Installation Manual ContentsMicro Motion Model 1700 and 2700 Transmitters ContentsBefore You Begin Chapter1.2Safety 1.1Overview1.3Flowmeter components 1.5Transmitter installation procedures 1.6Flowmeter documentationTable 1-1 Flowmeter documentation resources 1.7Micro Motion customer service 2.2Installation architecture Installing the TransmitterChapter 2.1OverviewInstalling the Transmitter Figure 2-1 Installation typesIntegral 4-wireremote 9-wireremote 9-wirecable2.3.3Power source Temperature limitsAC power requirements 2.3Determining an appropriate locationDC power requirements Installing the Transmitter 2.3.5Accessibility for maintenanceWire gauge 2.3.4Maximum cable lengthsFigure 2-2 Rotating the transmitter 2.4.1Integral installationsTo mount the transmitter 2.4.39-wireremote installations 2.5Mounting the remote core processor Figure 2-8 Remote core processor components Installation Installing the Transmitter2.6Grounding the flowmeter components architectureFigure 2-9 Wiring the transmitter power supply 2.7Supplying power2.8Rotating the display Warning flap1.Power down the transmitter Figure 2-10 Display components Installing the TransmitterMain enclosure Sub-bezel Display module Display coverChapter Wiring the Transmitter to the Sensor3.1Overview 3.2Cable types3.2.14-wirecable 3.2.29-wirecable3.3Wiring for 4-wireremote installations Wiring the Transmitter to the Sensor Figure 3-3 Wiring to the mating connectorMating connector transmitter Mating connector3.4Wiring for 9-wireremote installations If using jacketed cable Figure 3-5 Cable glands Installation Manual Figure 3-7 Wrapping the shield drain wiresFigure 3-8 Applying the heat shrink Figure 3-9 Folding the cloth shieldCore processor housing internal ground screw Figure 3-10 Gland body and core processor housinga.Identify the components shown in Figure If using jacketed cable Analog Transmitters Output Wiring - Model 1700/27004.3Output wiring Chapter+ - mA output loop 820 Ω maximum loop resistance Figure 4-1 Basic analog wiringFrequency receiving device Output voltage level is +24 VDC ± 3%Figure 4-3 RS-485 point-to-pointwiring Figure 4-2 HART/analog single-loopwiringBefore You Begin Installing the Transmitter Sensor WiringHART-compatiblehost or controller 24 VDC loop powerHART-compatible transmittersSafe Transmitters Output Wiring - Model 1700/2700 IntrinsicallyChapter 5.1Overview5.3Safe area output wiring 5.3.1Safe area mA output wiringFigure 5-1 Safe area basic mA output wiring Output Wiring - Intrinsically Safe SpecificationsRmax = Vsupply - 12/0.023 SMART FAMILY 5.3.2Safe area frequency/discrete output wiringHART 4-20mA HART-compatible5.4.1Hazardous area safety parameters 5.4Hazardous area output wiringHazardous area voltage Table 5-2 Safety parametersHazardous area current Hazardous area capacitanceFigure 5-7 Hazardous area mA output wiring 5.4.2Hazardous area mA output wiringSafe area Hazardous areaHazardous area Safe areaTransmitters Output Wiring - Model 2700 Configurable I/O6.2Channel configuration Chapter6.3mA output wiring Table 6-1 Channel configurationConfiguration options PowerFigure 6-3 HART/analog single-loopwiring Figure 6-2 Basic mA wiringOutput Wiring - Intrinsically Safe Output Wiring - Configurable I/OChannel B, internal power - Figure 6.4Frequency output wiringChannel B, external power - Figure Channel C, internal power - FigureOutput Wiring - Intrinsically Safe SpecificationsExcessive current will damage the transmitter + Pull-upresistor Counter Output voltage level is +15 VDC ± 3%+ 3-30VDC Counter6.5Discrete output wiring Pull-upresistor or DC relay Volts 6.6Discrete input wiring Table 6-2 Input voltage ranges for external powerRange Installation Manual + SwitchPLC or other deviceMicro Motion Model 1700 and 2700 Transmitters Chapter 7.2FOUNDATION fieldbus wiring7.1Overview Note Terminals 3 through 6 are not usedNote Terminals 3 through 6 are not used 7.3PROFIBUS-PAwiringAppendix A SpecificationsA.1 Functional specifications Power connectionInput signal from sensor A.1.2 Input/output signalsCore processor connection FISCO and FNICO approval2700 transmitters Not intrinsically safe 2700 transmitters Intrinsically safe Discrete output Model 2700 only One or two frequency/pulse outputs A.1.3 Digital communication Service portHART/Bell202 FOUNDATION fieldbus or PROFIBUS-PAtransmittersAC power requirements A.1.4 Power supplyDC power requirements Ambient temperature limitsA.2.1 UL and CSA A.2 Hazardous area classificationsTransmitter OutputsA.4 Physical specifications A.3 Performance specificationsA.4.1 Housing A.4.2 MountingA.4.4 Weight A.4.5 DimensionsA.4.3 Interface/display Dimensions in inchesmm SpecificationsMicro Motion Model 1700 and 2700 Transmitters 6 13/16Output Wiring - Intrinsically Safe SpecificationsSpecifications Installation ManualDimensions in inchesmm SpecificationsMicro Motion Model 1700 and 2700 Transmitters 6 13/16Output Wiring - Intrinsically Safe SpecificationsSpecifications Installation ManualSpecifications Figure A-5 Dimensions - Remote core processorinches Dimensions in mm Micro Motion Model 1700 and 2700 TransmittersIndex Page Weight 65 Wiring instructions 4-wireremote UL installation requirements 7 specifications9-wireremote See Output wiring transmitter to sensorMicro Motion Model 1700 and 2700 Transmitters Page Micro Motion Inc. USA 20001700Worldwide Headquarters Micro Motion Europe