Schneider 140DAI74000 AC Digital Input Module
May 16, 2026

Schneider 140DAI74000 AC Digital Input Module

140DAI74000 Modicon Quantum Discrete Input Module

Description

140DAI74000

Modicon Quantum Discrete Input Module

16 Channels, 230 V AC, 47–63 Hz, Standard Non‑Coating, No Fuse / No Diagnostic

English Specification Manual (Full Text, No Images)


1. General Description

140DAI74000 is a 1‑slot standard AC discrete input module (non‑diagnostic, non‑fused) for Schneider Electric Modicon Quantum PLC. It provides 16 channels of 230 V AC digital input in a single group, designed for general‑purpose 230 V AC input applications without fuse protection and without fault diagnostics.
  • Manufacturer: Schneider Electric

  • Series: Modicon Quantum (140 Series)

  • Module Type: AC Discrete Input Module, Standard, Non‑Fused, Non‑Diagnostic

  • Channels: 16 points (1 input word)

  • Form Factor: 1 slot, hot‑swappable

  • Coating: Standard non‑conformal coating

  • Weight: ~0.35 kg

  • Key Feature: Basic 230 V AC input, no fuse, no diagnostic LED

  • Application: General factory, machinery, assembly lines, standard 230 V AC signals without fuse/ diagnostic requirements


2. Electrical Specifications

  • Nominal Input Voltage: 230 V AC

  • Operating Frequency: 47 … 63 Hz

  • Logic 1 (ON):

    • 165 … 264 V AC @ 57–63 Hz

    • 175 … 264 V AC @ 47–53 Hz

  • Logic 0 (OFF): 0 … 40 V AC

  • Input Current:

    • 11.5 mA max @ 57–63 Hz

    • 9.7 mA max @ 47–53 Hz

  • Input Impedance:

    • 26.5 kΩ (capacitive) @ 57–63 Hz

    • 31.8 kΩ (capacitive) @ 47–53 Hz

  • Leakage Current: max 2.6 mA

  • Response Time:

    • OFF → ON: 0.75 … 4.9 ms

    • ON → OFF: 7.3 … 12.3 ms

  • Isolation (Channel‑to‑Bus): 1780 Vrms, 1 minute

  • Backplane Current: 180 mA

  • Power Dissipation: ~5.5 W max

  • Internal Power: Powered by Quantum backplane

  • Absolute Maximum Input:

    • 200 V AC (1 cycle)

    • 264 V AC (continuous)

    • 300 V AC (10 s)

  • Fuse: None (no replaceable fuse on module)

  • Diagnostic: None (no F‑LED, no fault indication)


3. I/O & LED Indicators (Front)

  • IN0 … IN15 (Green LEDs) – Individual input status (ON = lit)

  • ACTIVE (Green LED) – Bus communication OK

  • No F‑LED – No fuse / diagnostic indication


4. Environmental Specifications

  • Operating Temperature: 0 °C … +60 °C

  • Storage Temperature: −40 °C … +85 °C

  • Relative Humidity: 5% … 95% non‑condensing

  • Altitude: ≤ 2,000 m (standard); up to 5,000 m derated

  • ESD: 4 kV contact / 8 kV air

  • EMI: 10 V/m (80–2000 MHz)

  • Protection Class: IP20


5. Physical & Mechanical

  • Dimensions (W × H × D): 35 × 122 × 52 mm (1 slot)

  • Mounting: Any single slot, hot‑swap compatible

  • Wiring: Screw terminals (field side)

  • Grouping: 1 group × 16 channels, 1 common

  • Field Wire Size: 0.5 … 2.5 mm²


6. Wiring & Connection

  • Common: One common for all 16 channels

  • Input: Apply 230 V AC between common and input terminal

  • Fuse: None – external fuse protection recommended

  • Shielding: Recommended for long cables; ground at one end only


7. Software Configuration

Supported software:
  • Unity Pro (recommended)

  • Concept v2.2+

  • ProWORX 32

Configuration:
  1. Add 140DAI74000 (1 slot) to I/O map

  2. Default input address: %I0 … %I15 (1 word)

  3. Set input filter (software, optional)

  4. Download to CPU


8. Troubleshooting

  • All IN LEDs OFF: Check 230 V AC supply and common wiring

  • ACTIVE OFF: Module not recognized; reseat or check backplane

  • Erratic Inputs: Poor grounding, noise, or loose terminals

  • No Fuse/DIAG: Use external circuit protection and monitoring


9. Certifications

  • CE (EN 55011, EN 61131‑2)

  • UL 508 / CSA C22.2 No. 142

  • CUL, FM Class I Div 2

  • RoHS compliant


10. Ordering Information

  • 140DAI74000: Standard non‑coated, Non‑Fuse / Non‑Diagnostic (general environment)

  • 140DAI74000C: Conformal coated, Non‑Fuse / Non‑Diagnostic (harsh environment)


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