140ACI04000

Overview

The Schneider Electric 140ACI04000 is a sixteen-channel analogue input module for the Modicon Quantum automation platform. It extends the proven 140ACI family to higher channel density, accepting 1–5 V or 4–20 mA differential signals across sixteen inputs resolved at 12 bits, which reduces per-channel rack cost and slot consumption in larger systems.

The module fits a single Quantum slot, draws 360 mA from the backplane and dissipates about 2 W. A single-pole low-pass filter (3 dB at 15 Hz, ±20%) and differential topology suppress noise on long field runs. Status is indicated by a green bus-active LED, a red external-fault LED and per-channel on/fault LEDs. With 0–60 °C operating range, 5–95 % non-condensing humidity tolerance and CE, cUL and FM Class 1 Division 2 certifications, the 140ACI04000 is built for demanding industrial environments.

Application & Technical Notes

The 140ACI04000 is the natural choice when a Quantum rack must absorb many analogue points without multiplying modules. Its sixteen differential inputs share the same accuracy and noise-rejection characteristics as the eight-channel 140ACI03000: ±0.05 % absolute accuracy (±0.1 % maximum), ±0.04 % linearity and −72 dB common-mode rejection at 60 Hz. Update time is 5 ms and broken-wire or undervoltage detection covers the current and voltage ranges.

Higher density means higher bus current (360 mA) and more addressing words, so plan the rack power budget and PLC memory accordingly. The 250 Ω current input and >20 MΩ voltage input impedances load field instruments negligibly. Absolute maximums remain 50 V DC and 25 mA, so over-range protection on exposed wiring is still recommended.

Maintenance & Diagnostics

The 140ACI04000 is essentially maintenance-free. During commissioning, verify each of the sixteen channels via its on/fault LEDs and confirm signal range before the loop is trusted. Keep the rack within 0–60 °C and 5–95 % non-condensing humidity, and ensure adjacent slots and rack ventilation are unobstructed because the module is convection-cooled.

De-energise the rack before insertion or removal. Because sixteen channels share one module, a single fault removes more points than an eight-channel unit would, so keep a spare on hand for critical systems. Store spares between −40 and 85 °C in original packaging, and recalibrate quality-critical channels against a known source at planned intervals.

Sourcing & Procurement

Choose the 140ACI04000 when channel count justifies higher density over the eight-channel 140ACI03000/03000C. Genuine Schneider Electric modules are recommended for new builds and safety-related loops because they retain the original CE, cUL and FM certifications and warranty. Third-party equivalents may be available at lower cost, but confirm channel count, isolation, accuracy and approvals before substitution.

For long-lead or discontinued items, refurbished genuine units from a reputable supplier are typically safer than clones. Buy from authorised distributors where possible, validate the seller, and retain the manufacturer part number and serial traceability for audit and warranty purposes.

Frequently Asked Questions

Specifications

analog input module Modicon Quantum - 16 I multirange

Reproduced from the manufacturer's published data. Values marked "Not available" are absent from the source document.

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