Rockwell Automation 1790-XXXX CompactBlock LDX I/O DeviceNet RTD and Thermocouple - Manual (Page 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