Schneider Electric Modicon Quantum 140DDI35300 24V DC Discrete Input Module

Product Overview

The Schneider Electric 140DDI35300 serves as a high-density discrete input gateway for the Modicon Quantum automation platform. This module provides 32 individual channels designed to monitor low-voltage 24V DC signals from field devices such as pushbuttons, limit switches, and proximity sensors. Operating on a positive (sink) logic architecture, it translates physical plant states into digital data for the Quantum CPU. We supply this module as 100% brand new original equipment, ensuring full compatibility with existing Quantum backplanes and mission-critical control architectures.

Technical Specifications

The 140DDI35300 utilizes high-speed circuitry to deliver rapid signal acquisition across four distinct groups of channels.

• Discrete Input Number: 32 Channels

• Group Configuration: 4 groups of 8 channels

• Logic Input: Positive (Sink)

• Rated Voltage: 24 V DC

• Input Voltage Limits: 19.2 to 30 V DC

• Response Time: <= 1 ms (State 0 to 1 and 1 to 0)

• Input Impedance: 2500 Ohm

• Isolation: 1780 Vrms for 1 minute (between group and bus)

• Bus Current Requirement: 330 mA

• Addressing Requirement: 2 input words

• Power Dissipation: 1.7 W + (0.36 x number of active points)

• Weight: 0.7 lb (0.3 kg)

Engineering Advantages

• Ultra-Fast Signal Acquisition: With a response time of 1 ms or less, the 140DDI35300 captures transient signals that slower modules might miss. This high-speed performance supports precise timing in high-throughput packaging or sorting applications.

• High-Density I/O Footprint: Integrating 32 channels into a standard Quantum module format maximizes rack space. This density allows engineers to handle extensive field instrumentation without expanding the physical footprint of the PLC cabinet.

• Comprehensive Visual Diagnostics: The front panel features 32 green LEDs for real-time input status, a red LED for external faults, and a green "Active" LED for bus communication. This immediate visual feedback simplifies onsite troubleshooting and reduces downtime during maintenance.

• Industrial-Grade Isolation: The module provides 1780 Vrms isolation between the field groups and the backplane bus. This robust electrical barrier protects sensitive CPU electronics from field-side surges and ground loops, even in environments with heavy electromagnetic interference.

• Global Certification Compliance: Holding certifications from ABS, BV, DNV, and GL, the 140DDI35300 meets the rigorous standards required for marine, offshore, and heavy industrial deployments worldwide.

FAQs

• Does the 140DDI35300 support source or sink logic?

  The 140DDI35300 utilizes positive (sink) logic. Ensure your field wiring provides a positive voltage to the input terminals to trigger an "On" state.

• What happens if the input voltage exceeds 30 V DC?

  The module features resistor-limited input protection and handles absolute maximums of 30 V continuous or 56 V during 1.3 ms pulses. However, exceeding 30 V for extended periods may cause thermal damage or trigger a fault state.

• Is this a direct replacement for other Quantum DI modules?

  The 140DDI35300 fits standard Quantum backplanes. If you are replacing an older 16-point or different voltage module, you must update the hardware configuration in your Schneider Unity Pro or EcoStruxure Control Expert software to reflect the 32-point 24V DC mapping.

• What is the guarantee of product condition?

  We guarantee this unit is 100% Brand New original Schneider Electric stock. It arrives in the original package with the factory seal and GTIN (3595861133815) intact.