The Allen-Bradley 1790D-TN4C0 module is a 4-channel analog current input module. It is part of the 1790D CompactBlock LDX I/O family and it is designed for use with the DeviceNet networks. The default input current range for the module is 4 to 20 milliamps. The complete input current range is 0 to 20 milliamps. The input current setting is software-configurable. The input resolution for the module is 12 bits-unipolar, 1/4096 maximum. For the 4 to 20 milliamps input range, the resolution is 3.90 microamps per bit and for the 0 to 20 milliamps input range, the resolution is 4.88 microamps per bit. The converted data is binary data. The conversion time for the 1790D-TN4C0 module is 10 milliseconds per channel.
The overall accuracy for the 1790D-TN4C0 module is 0.2% full scale at 0 to 55 degrees Celsius. The module does not require calibration. The input impedance is 249 Ohms. The insulation resistance is 20 megaohms at 250 Volts DC (between insulated circuits). The DeviceNet power requirement of the 1790D-TN4C0 module is 24 Volts DC nominal while the voltage range is 11 to 28.2 Volts DC and the maximum power dissipation is 1.2 Watts at 28.8 Volts DC. The filed power requirement is 24 Volts DC nominal, the input voltage range is 21.6 to 26.4 Volts DC, and the maximum power dissipation is 1.5 Watts at 26.4 Volts DC. Four red and green I/O status indicators are provided on the 1790D-TN4C0 module. The 1790D-TN4C0 base module can accommodate a maximum of two discrete expansion modules. The maximum recommended screw torque for winding is 7 pounds on an inch.
Repair Services for 1790D-TN4C0
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Our highly skilled technicians can repair your 1790D-TN4C0. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.