Product Introduction
Part of the Modicon Quantum automation platform, the Schneider 140ACI03000C is a differential analog input module designed for precise signal acquisition. With eight differential inputs and 12-bit resolution, it handles linear measuring ranges of 1...5 V and 4...20 mA, making it ideal for process control applications where accuracy and noise rejection are critical.
Technical Specifications
The Schneider 140ACI03000C delivers reliable performance with the following key parameters:
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Number of Inputs: 8 differential inputs
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Analog Input Resolution: 12 bits
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Linear Measuring Range: 1...5 V and 4...20 mA
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Maximum Input Voltage: 50 VDC
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Maximum Input Current: 25 mA
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Input Impedance: > 20 MΩ (voltage), 250 Ω (current)
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Linearity Error: ±0.04%
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Accuracy Drift: ±0.0025% of full scale/°C
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Update Time: 5 ms
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Power Consumption: 2 W
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Isolation Between Channels: 30 VDC
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Isolation Between Channels and Bus: 1000 VDC (3000 VDC for 60 s)
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Common Mode Rejection: > -72 dB at 60 Hz
Industry Applications
The Schneider 140ACI03000C excels in environments requiring high common mode rejection and channel isolation. Typical applications include:
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Process Control: Monitoring temperature, pressure, and flow signals from field transmitters.
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Factory Automation: Acquiring analog signals from sensors in manufacturing lines.
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Energy Management: Measuring current and voltage signals from power monitoring devices.
Installation & Setup Guidance
When integrating the Schneider 140ACI03000C into your Modicon Quantum system, ensure proper addressing of 9 input words. Use shielded twisted-pair cables for voltage and current inputs to minimize noise. Verify input impedance matches your sensor output: > 20 MΩ for voltage signals and 250 Ω for current signals. The module fits a standard format slot and requires a bus current of 240 mA.
Maintenance & Reliability
Routine inspection of the Schneider 140ACI03000C should focus on environmental conditions: ambient temperature between 32...140 °F (0...60 °C) and relative humidity up to 95% without condensation. The conformal coating (Humiseal 1A33) protects against moisture and contaminants. Check LED indicators: green for bus communication, red for external fault, and individual channel status LEDs for quick diagnostics.
Selection Guide & Purchasing Advice
Before purchasing the Schneider 140ACI03000C, verify compatibility with your Modicon Quantum backplane and power supply. Ensure your system supports the 9 input word addressing requirement. For genuine parts and fast shipping, order from UBEST Automation (ubest101).