Emerson 1700, 2700 Discrete input wiring, 2Input voltage ranges for external power

Page 54

Output Wiring – Model 2700 Configurable I/O Transmitters

Figure 6-15Recommended pull-up resistor versus supply voltage – External power

 

4400

 

 

 

 

 

 

4200

 

 

 

 

 

(Ohms)

4000

 

 

 

 

 

3800

 

 

 

 

 

3600

 

 

 

 

 

3400

 

 

 

 

 

range

 

 

 

 

 

3200

 

 

 

 

 

3000

 

 

 

 

 

resistor

 

 

 

 

 

2800

 

 

 

 

 

2600

 

 

 

 

 

2400

 

 

 

 

 

up

 

 

 

 

 

2200

 

 

Recommended

 

-

 

 

 

 

pull

2000

 

 

 

 

 

resistor value range

 

1800

 

 

 

 

 

 

 

 

External

 

 

 

 

 

1600

 

 

 

 

 

1400

 

 

 

 

 

1200

 

 

 

 

 

 

 

 

 

 

 

 

1000

 

 

 

 

 

 

800

 

 

 

 

 

 

600

 

 

 

 

 

 

400

10

15

20

25

30

 

5

Supply voltage (Volts)

Note: When using a discrete output to drive a relay, choose external pull-up to limit current to less than 500 mA.

6.6Discrete input wiring

Discrete input wiring depends on whether you have configured terminals 5 and 6 (Channel C) for internal or external power. The following diagrams are examples of proper wiring for these configurations.

If external power is configured, power may be supplied by a PLC or other device, or by direct DC input. See Table 6-2for input voltage ranges.

Table 6-2Input voltage ranges for external power

VDC

Range

 

 

3–30

High level

 

 

0–0.8

Low level

 

 

0.8–3

Undefined

 

 

50

Micro Motion® Model 1700 and 2700 Transmitters

Page 53 Page 55
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Page 53 Page 55
Contents Micro Motion Model 1700 Model 2700 Transmitters Page Contents Index Safety Before You BeginOverview Flowmeter components Transmitter installation procedures Flowmeter documentation 1Flowmeter documentation resourcesMicro Motion customer service Installing the Transmitter Installation architecture1Installation types AC power requirements Temperature limitsPower source Determining an appropriate locationDC power requirements 1Typical power cable resistances at 68 F 20 C2Maximum cable lengths Accessibility for maintenanceMaximum cable lengths Mounting the transmitterIntegral installations 2Rotating the transmitter34-wire remote Wall mount or pipe mount 3 9-wire remote installations 59-wire remote Wall mount or pipe mount6Transmitter/core processor assembly Exploded view Mounting the remote core processor7Remote core processor Wall mount or pipe mount Grounding the flowmeter components 3Grounding methods for flowmeter componentsSupplying power Rotating the displayInstalling the Transmitter 10Display components Wiring the Transmitter to the Sensor Cable types1 4-wire cable 2 9-wire cableWiring for 4-wire remote installations 3Wiring to the mating connector Wiring for 9-wire remote installations Core processor on transmitterSubtask 1 Wire the remote core processor to the transmitter 5Cable glands 7Wrapping the shield drain wires 10Gland body and core processor housing Subtask 2 Wiring the sensor to the remote core processor 129-wire cable between sensor and core processorWiring the Transmitter to the Sensor Output terminals and output types Output Wiring Model 1700/2700 Analog TransmittersOutput wiring 1Terminals and output types1Basic analog wiring 2HART/analog single-loop wiring Smart Family Output Wiring Intrinsically Safe Safe area output wiring Safe area mA output wiring2Safe area mA output load resistance values Safe area frequency/discrete output wiring 5Safe area frequency/discrete output wiringHazardous area output wiring Hazardous area safety parametersHazardous area current 2Safety parametersHazardous area voltage Hazardous area capacitanceHazardous area mA output wiring Hazardous area frequency/discrete output wiringHazardous area Output Wiring Model 2700 Configurable I/O Transmitters Channel configuration1Channel configuration MA output wiring2Basic mA wiring Frequency output wiring 5Frequency output Terminals 3 & 4 Channel B Internal power 7Frequency output Terminals 5 & 6 Channel C Internal power Discrete output wiring 9Discrete output 1 Terminals 3 & 4 Channel B Internal power11Discrete output 2 Terminals 5 & 6 Channel C Internal power Volts Voltage Output Level High Discrete input wiring 2Input voltage ranges for external power16Discrete input Terminals 5 & 6 Channel C Internal power Micro Motion Model 1700 and 2700 Transmitters Foundation fieldbus wiring 1Connecting the fieldbus communication wiresPROFIBUS-PA wiring 2Connecting the PROFIBUS-PA communication wiresPower connection SpecificationsFunctional specifications Service port connectionInput/output signals Input signal from sensor Core processor connectionFisco and Fnico approval Specifications Operating Absolute minimum = 100 Ohms for V supply 25.6 volts Specifications HART/Bell202 Service portDigital communication Foundation fieldbus or PROFIBUS-PA transmittersAmbient temperature effect Power supplyEnvironmental requirements Ambient temperature limits EMC complianceOutputs UL and CSATransmitter Atex and IECExHousing Performance specificationsPhysical specifications MountingWeight DimensionsInterface/display Dimensions in inchesmm Inches Dimensions in mm Or M20 × 11/16 160 13/16 139 ″-14 NPT 158 182 × Ø3/8 13/16 148 15/16 × 1/2″-14 NPT Figure A-5Dimensions Remote core processor Index AtexRemote core processor with remote Index Micro Motion Model 1700 and 2700 Transmitters Page 20001700
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