Introduction
As industrial automation evolved from relay logic to sophisticated process control, the demand for precise analog signal acquisition grew. The Schneider Electric 140AVI03000C analog input module emerged to meet that need within the Modicon Quantum platform. It provides eight differential inputs for accurate voltage and current measurements in process automation. This module handles bipolar and unipolar signals, making it a practical choice for oil, gas, and industrial applications where reliable data acquisition is critical. Oil AutoTech supplies this module with fast dispatch, worldwide.
Technical Specifications
The 140AVI03000C offers eight differential analog inputs with 16-bit resolution. It supports bipolar current 20 mA, bipolar voltage +/- 10 V and +/- 5 V, unipolar current 0…20 mA, and unipolar voltage 0…10 V and 0…5 V. Addressing requires 9 input words. The absolute maximum input is 50 V DC or 25 mA. Input impedance is > 20 Ohm for voltage and 250 MOhm for current. Isolation between channels and bus is 500 Vrms AC for 60 s and 750 V DC. Update time is 10 ms. The module draws 280 mA bus current and dissipates 2.2 W. It includes a single-pole low-pass filter with 3 dB at 847 Hz +/- 20%. Accuracy drift is <= 0.004% of full scale per °C. Common mode rejection exceeds -80 dB at 60 Hz. The module weighs 0.3 kg and operates from 0…60 °C.
Industry Applications
In oil and gas processing, the 140AVI03000C captures pressure and flow signals from transmitters. Its 16-bit resolution and 10 ms update time support real-time monitoring. For water treatment, the differential inputs reduce noise in flow measurements. The module’s conformal coating and ESD resistance (4 kV contact, 8 kV air) ensure reliability in harsh environments. When upgrading legacy systems, this module integrates into existing Modicon Quantum racks, extending the life of your automation investment.
Installation and Setup
Mount the 140AVI03000C in a standard Modicon Quantum backplane slot. Ensure proper grounding to minimize electromagnetic interference. Use shielded twisted-pair cables for analog signals. Verify input ranges match your sensor outputs. The module requires 9 input words for addressing; configure your PLC accordingly. Local LEDs indicate bus communication (green), external fault (red), and per-channel status (green on, red fault). Confirm wiring against the manufacturer’s guidelines before power-up.
Maintenance and Reliability
Periodic inspection of connections and LED status helps prevent downtime. The 140AVI03000C resists electrostatic discharge and electromagnetic fields (9.1 V/m from 80 to 1000 MHz). Its conformal coating protects against humidity and contaminants. For optimal performance, keep the operating temperature within 0…60 °C and humidity below 95% without condensation. When spares are needed, Oil AutoTech offers fast dispatch, worldwide.
Selection Guide
Before ordering, verify your system uses the Modicon Quantum platform and requires eight differential analog inputs. Check that your signal types match the module’s supported ranges. The 140AVI03000C is a direct replacement for existing Quantum installations. Contact Oil AutoTech today for pricing and availability. Our team provides hands-on technical selection help to ensure compatibility.
FAQ
Q: What is the input resolution of the 140AVI03000C?
A: The module provides 16-bit resolution for all supported voltage and current ranges.
Q: Can the 140AVI03000C handle both voltage and current signals?
A: Yes, it supports bipolar and unipolar voltage and current inputs as listed in the specifications.
Q: What is the update time for all channels?
A: The update time is 10 ms.
Q: Does this module require external power?
A: It draws 280 mA from the backplane bus.
Q: What is the operating temperature range?
A: The module operates from 0…60 °C.
