Description
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 140ACI04000 |
| Manufacturer | Schneider Electric |
| Product Type | Analog Input Module (Modicon Quantum Platform) |
| Number of Input Channels | 16, Differential Type |
| Supported Input Ranges | 4…20 mA / 0…20 mA / 0…25 mA |
| Input Resolution | 0…16000 counts (4…20 mA) / 0…20000 counts (0…20 mA) / 0…25000 counts (0…25 mA) / 0…4095 counts (12-bit mode) |
| Absolute Accuracy Error | ±0.125% of Full Scale |
| Linearity Error | ±12 µA max (4…20 mA) / ±6 µA max (0…20 mA, 0…25 mA) |
| Temperature Drift | ±0.0025% of Full Scale / °C |
| Input Impedance | 250 Ohm |
| Absolute Maximum Input | 30 mA |
| Common Mode Rejection | > -90 dB at 60 Hz |
| Channel-to-Bus Isolation | 1780 V AC for 60 seconds |
| Update Time | 15 ms (2-wire / 4-wire transmitter compatible) |
| Filter Type | Single-pole low-pass, -3 dB at 34 Hz (±25%) |
| Fault Detection | Broken wire detection for 4…20 mA loops |
| Addressing Requirement | 17 input words |
| Bus Current Requirement | 360 mA |
| Power Dissipation | 5 W |
| Local Signaling LEDs | 1 green (bus active) + 1 red (external fault) + 16 green (channel on) + 16 red (channel fault) |
| Operating Temperature | 0…60 °C |
| Storage Temperature | -40…85 °C |
| Relative Humidity | 95% without condensation |
| Operating Altitude | ≤ 5000 m |
| Net Weight | 0.3 kg |
| Standards & Certifications | UL 508, CSA C22.2 No. 142, cUL, FM Class 1 Division 2, CE |
| EMC / ESD Immunity | 4 kV contact / 8 kV air (IEC 801-2); 10 V/m, 80…1000 MHz (IEC 801-3) |
Main Features and Advantages
High-density 16-channel differential acquisition: The 140ACI04000 consolidates sixteen independent analog input channels into a single standard rack slot, dramatically reducing the number of modules required in the control cabinet. This high-density design optimizes backplane space, lowers total hardware procurement cost, and simplifies system architecture without sacrificing measurement quality.
Multi-range flexibility with precision performance: Supporting 4…20 mA, 0…20 mA, and 0…25 mA current loops, the module adapts to virtually any industrial transmitter. With resolution scaling to 25,000 counts and an absolute accuracy of ±0.125% full scale, the 140ACI04000 captures even the smallest process deviations, making it ideal for demanding control loops such as pH regulation, precision batching, and tight temperature control.
Robust noise immunity and galvanic isolation: Differential inputs paired with a common-mode rejection exceeding 90 dB at 60 Hz effectively cancel ground-loop noise and electromagnetic interference. The 1780 V AC isolation barrier between channels and the system bus protects sensitive backplane electronics from field-side voltage transients, ensuring long-term data integrity in harsh electrical environments.
Intelligent diagnostics and signal conditioning: A dedicated 34 Hz low-pass filter smooths jitter and rejects high-frequency spikes, while automatic broken-wire detection for 4…20 mA loops immediately flags open-circuit faults. The 34 front-panel LEDs provide instant, channel-level visual status, allowing technicians to diagnose problems at a glance without specialized tools.
Rugged environmental durability: Rated for operation from 0 to 60 °C and storage from -40 to 85 °C, the 140ACI04000 performs reliably at altitudes up to 5000 meters and in up to 95% relative humidity. Its compliance with UL 508, CSA, cUL, and FM Class 1 Division 2 standards, together with strong ESD and EMC immunity, makes it a dependable choice for hazardous and electrically challenging locations.
