Rockwell-automation 1790-XXXX CompactBlock LDX I/O DeviceNet RTD and T Manual de usuario descargar pdf (Pagina 21)

21

Publication 1790-IN011B-EN-P - April 2003

4-Channel Input Thermocouple Base Module Specifications

General Specifications

DeviceNet Power Supply voltage - 24V dc nominal

Voltage range - 11-28.8V dc

Power dissipation - 1.2W maximum @ 28.8V dc

Field Power Supply Voltage - 24Vdc nominal

Voltage Range - 21.6-26.4V dc (+

10%)

Power Dissipation - 1.5W maximum @26.4V dc

Isolation I/O to logic: photocoupler isolation

Isolation voltage: Type Test 1250V ac rms for 60 seconds

DeviceNet to logic: non-isolated

Field power: non-isolated

Indicators 4 red/green I/O status

Wiring

1790D-4R0

1790D-T4R0

37-pin D-Shell connector

Terminal block connector

screw torque: 7 inch pounds maximum

IMPORTANT: This module does not support any expansion modules.

1790D-4T0, 1790D-T4T0

Inputs per module 4 channel, Thermocouple/mV Input

Input Range +

76.50mV

Sensors Supported Sensor Type Range Scaling

Voltage 10V -76.50 to +76.50mV -7650 to +7650

Type B 300 to 1800°C 3000 to 18000

Type E -270 to 1000°C -2700 to 10000

Type J -210 to 1200°C -2100 to 12000

Type K -270 to 1370°C -2700 to 13700

Type R -50 to 1768°C -500 to 17680

Type S -50 to 1768°C -500 to 17680

Type T -270 to 400°C -2700 to 4000

Type N -270 to 1300°C -2700 to 13000

Resolution 16 bits, 0.1°C/bit or 0.1°F/bit (Thermocouple Sensors)

20bit Sigma-Delta modulation converter

Data Format 16 bit Integer (2’s compliment)

Module Scan Time 140ms/channel @ Notch Filter = 60Hz

Overall accuracy 0.2% Full scale @0°C-60°C

Settable Notch Filter 10Hz (default), 25Hz, 50Hz, 60Hz, 100Hz, 250Hz, 500Hz

Open Wire Detection Out of range, open wiring

Cold Junction

Compensation Range

0 to 70°C

1 2 ... 16 17 18 19 20 21 22 23 24

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