Product Overview
The 140ACI04000 is a high-density analog input module engineered by Schneider Electric for the renowned Modicon Quantum automation platform. As a multirange current-input module, the 140ACI04000 provides 16 differential analog input channels in a single standard-format Quantum rack slot, delivering exceptional channel density for process monitoring and control applications. Each of the 16 channels on the 140ACI04000 accepts industry-standard current signals—4-20 mA, 0-20 mA, and 0-25 mA—making it the ideal interface between field transmitters, sensors, and the Modicon Quantum controller. With a ±0.125% full-scale absolute accuracy and up to 25,000 counts of resolution (on the 0-25 mA range), the 140ACI04000 captures process variables with the precision demanded by modern industrial automation.
At the core of the 140ACI04000 lies a single-pole low-pass filter with a 34 Hz cutoff (±25%), which eliminates high-frequency noise from the acquired signal while preserving the integrity of the underlying process measurement. The module’s >90 dB common-mode rejection at 60 Hz ensures reliable operation in electrically noisy industrial environments where electromagnetic interference would degrade lesser modules. An impressive 1780 V AC isolation between channels and the Quantum backplane bus protects the controller from field-side transients, while the 15 ms update time for all 16 channels (in both 2-wire and 4-wire configurations) delivers near-real-time data availability for control loops.
The 140ACI04000 occupies a standard single-width Quantum module form factor, drawing 360 mA from the backplane bus and dissipating just 5 W of power. Its comprehensive diagnostic capabilities set it apart in the analog I/O landscape: 16 green LEDs indicate per-channel active status, 16 red LEDs flag channel faults, and dedicated bus communication/external fault LEDs provide module-level health indication. The 140ACI04000 automatically detects broken-wire faults on 4-20 mA loops, alerting operators to sensor disconnection before process disruption occurs. Although Schneider Electric officially discontinued the 140ACI04000 on October 24, 2024, it continues to serve as a mission-critical spare for the extensive installed base of Modicon Quantum systems worldwide, with the BMXAMI0810 X80 high-speed isolated analog input module designated as the recommended replacement for new designs.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | 140ACI04000 |
| Manufacturer | Schneider Electric |
| Product Type | Analog Input Module |
| Product Family | Modicon Quantum Automation Platform |
| Number of Inputs | 16 differential analog inputs |
| Input Signal Types | 4-20 mA, 0-20 mA, 0-25 mA |
| Input Impedance | 250 Ω |
| Absolute Maximum Input | 30 mA |
| Addressing Requirement | 17 input words |
| Resolution | 0-16000 counts (4-20 mA); 0-20000 counts (0-20 mA); 0-25000 counts (0-25 mA); 0-4095 counts (4-20 mA alternate) |
| 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 |
| Common Mode Rejection | >90 dB at 60 Hz |
| Filter Type | Single-pole low-pass, 3 dB at 34 Hz (±25%) |
| Isolation (Channels to Bus) | 1780 V AC for 60 seconds |
| Update Time | 15 ms (2-wire / 4-wire) |
| Fault Detection | Broken-wire detection for 4-20 mA inputs |
| Bus Current Requirement | 360 mA |
| Power Dissipation | 5 W |
| Local Signaling | 1 green LED (bus active); 1 red LED (external fault); 16 green LEDs (channel on); 16 red LEDs (channel fault) |
| Module Format | Standard (single-slot) |
| Net Weight | 0.3 kg |
| Operating Temperature | 0 °C to 60 °C |
| Storage Temperature | -40 °C to 85 °C |
| Relative Humidity | 95% without condensation |
| Operating Altitude | ≤ 5000 m |
| ESD Resistance | 4 kV contact, 8 kV air (IEC 801-2) |
| EMC Immunity | 10 V/m, 80-1000 MHz (IEC 801-3) |
| Certifications | UL 508, CSA C22.2 No. 142, cUL, FM Class 1 Division 2, CE |
| Lifecycle Status | Discontinued (October 24, 2024) |
| Recommended Replacement | BMXAMI0810 (X80, 8 inputs, high-s |
