Overview of Allen-Bradley 1746-NI04V Analog Input Module
The Allen-Bradley 1746-NI04V is a 4-channel analog input module designed for the SLC 500 programmable controller series. It supports user-selectable voltage or current input on each channel, providing flexibility for monitoring a variety of analog signals in industrial applications. The module features high resolution and input filtering for accurate and noise-immune measurements.
Key Features of Allen-Bradley 1746-NI04V
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Channels: 4 analog inputs, individually selectable as voltage or current inputs.
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Input Voltage Range: ±10 V DC with 1 MΩ input impedance.
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Input Current Range: ±20 mA with suitable input current sensing.
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Resolution: 16-bit analog-to-digital converter for high precision.
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Input Filtering: Advanced signal filtering for noise reduction and accuracy.
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Overvoltage Protection: Continuously withstands up to 220 V DC or AC RMS.
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Mounting: Fits into an SLC 500 chassis for modular installation.
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Operating Temperature Range: 0 to 60°C (32 to 140°F).
Technical Specs of 1746-NI04V
Number of Channels: 4 analog inputs
Voltage Input Range: ±10 V DC
Current Input Range: -20 to +20 mA
Input Impedance: 1 MΩ (voltage), low for current inputs
Resolution: 16-bit A/D converter
Overvoltage Protection: 220 V DC/AC (continuous)
Accuracy: ±0.284% of full scale at 25°C
Backplane Current: 25 mA at 5 V, 85 mA at 24 V
Thermal Dissipation: Max 2.2 W
Operating Temperature: 0 to 60°C (32 to 140°F)
Dimensions: Standard SLC 500 module size
Applications / Use Case of Allen-Bradley 1746-NI04V
The 1746-NI04V module is ideally suited for industrial process control and monitoring applications where precise analog input measurement is required. This includes temperature sensing, pressure monitoring, flow measurement, and other sensor inputs converting physical measurements to electrical signals for automation systems.