Schneider Electric 140DAI34000C 16-Channel DI Module

Reliable AC Signal Acquisition for Quantum Systems

Interface industrial AC control signals with your PLC using the Schneider Electric 140DAI34000C discrete input module. This Modicon Quantum module provides 16 channels for monitoring 24V AC devices like switches and sensors. Designed for compliance and reliability, it is a fundamental component for robust industrial control applications.

Core Technical Specifications

• Brand & Manufacturer: Schneider Electric
• Product Line & Model: Modicon Quantum / 140DAI34000C
• Type: Discrete (Digital) Input Module
• Input Channels: 16 Channels
• Input Signal Type: 24 Volts AC
• Addressing: Requires 1 Input Word
• Input Current per Point: 10.7 to 12 mA
• Max Leakage Current: 1.9 mA
• Bus Current Requirement: 180 mA
• Max Power Dissipation: 5.5 W
• Operating Temperature: 0°C to 60°C

Certifications and Physical Details

• Safety Standards: UL 508, CSA
• Compliance Marking: CE
• Module Format: Standard Quantum Module
• EAN Code: 3595861135901
• Approx. Weight: 0.3 kg

Key Features and Benefits

• High-Density AC Monitoring: Sixteen channels in a single slot efficiently monitor a large number of AC control devices.
• 24V AC Compatibility: Directly interfaces with common industrial AC control circuits, eliminating the need for external signal converters.
• Low Leakage Current: A maximum leakage of 1.9 mA ensures reliable off-state recognition and prevents false triggering.
• Certified Safety & Reliability: Compliance with UL 508 and CSA standards guarantees suitability for industrial control panels in North America.
• Simple Integration: Standard Quantum format and single-word addressing allow for quick and straightforward system configuration.
• Efficient Power Usage: Moderate bus current (180mA) and power dissipation (5.5W) minimize the load on the system power supply.

Installation and Wiring Guidelines

• Connect field devices (e.g., push buttons, limit switches, selector switches) with a nominal 24V AC signal to the module's terminal points.
• Ensure the common reference voltage for all inputs matches the module's AC specifications.
• Account for the module's 180mA bus current requirement when calculating the total load on the Quantum backplane power supply.
• Allow for adequate ventilation as the module can dissipate up to 5.5W of heat under full load.
• Adhere to the operating temperature range of 0°C to 60°C for optimal performance and longevity.
• Use the single input word assigned to this module in your PLC program to read the status of all 16 digital inputs.

Frequently Asked Questions (FAQ)

• What type of signal does this module accept?
  The 140DAI34000C is designed specifically for 24 Volts Alternating Current (AC) input signals.
• Can it be used with DC sensors or switches?
  No. This module is designed for AC voltage only. Using DC signals will not provide reliable operation and may damage the module.
• What does "1 input word" of addressing mean?
  In the Quantum system, this module occupies one 16-bit word in the PLC's input memory area. Each of its 16 channels corresponds to one bit in that word.
• What is the significance of the leakage current specification?
  Low leakage current (1.9mA max) ensures that when a field device is open (off), the input reliably reads as OFF, preventing false "ON" states due to stray capacitance or induced voltage.
• Is this module suitable for safety circuits?
  No. The 140DAI34000C is a standard discrete input module. For safety-related functions (e.g., E-Stop monitoring), a specially certified safety input module must be used.
• What are the compatible wire sizes?
  Refer to the module's hardware guide for specific terminal specifications, but Quantum modules typically accept a range up to 14 AWG.

© 2026 NexAuto Technology Limited. All rights reserved.
Original Source: https://www.nex-auto.com/
Contact: sales@nex-auto.com | Phone: +86 153 9242 9628

Partner: AutoNex Controls Limited