Schneider Electric 140DDI36400 Quantum Input Module 24V DC

Product Description

The Schneider Electric 140DDI36400 is a high-density digital input module developed for the Modicon Quantum PLC platform, designed to acquire and process large volumes of 24 VDC field signals with high reliability.

With 96 discrete input points organized into six isolated groups, this module enables efficient signal acquisition from sensors, switches, and auxiliary contacts in complex automation systems. Its positive logic (sinking input) configuration ensures compatibility with standard industrial DC control circuits.

Engineered for stable operation in demanding environments, the module integrates fast response times, robust electrical isolation, and comprehensive diagnostic indication, making it suitable for large-scale control architectures.

Key Features

• 96 digital input channels in a single module
• Positive logic (sinking) input design for DC systems
• Grouped channel architecture for improved isolation
• High noise immunity with 500 Vrms group isolation
• Fast input signal processing for real-time control
• Full LED diagnostics for each input and module status

Technical Specifications

General Information

• Manufacturer: Schneider Electric
• Series: Modicon Quantum
• Model: 140DDI36400
• Module Type: Discrete Input Module
• Input Channels: 96
• Channel Groups: 6 (16 inputs per group)

Electrical Characteristics

• Rated Input Voltage: 24 VDC
• Operating Voltage Range: 19.2 to 30 VDC
• Logic Type: Positive (sinking input)
• Voltage Level (Logic 1): 15 to 30 VDC
• Voltage Level (Logic 0): ≤ 5 VDC
• Input Current (Logic 1): ≥ 2.5 mA
• Input Current (Logic 0): ≥ 0.7 mA
• Input Impedance: 6.7 kΩ
• Absolute Maximum Input:
  • 30 VDC continuous
  • 50 VDC transient (decaying pulse)

Performance

• Response Time:
  • OFF to ON: ≤ 2 ms
  • ON to OFF: ≤ 3 ms
• Addressing Requirement: 6 input words
• Bus Current Consumption: 270 mA

Power & Thermal

• Power Dissipation:
  • Base: 1.35 W
  • Additional: 0.13 W per active channel

Isolation & Protection

• Electrical Isolation: 500 Vrms between channel groups (1 minute)
• EMI/ESD Resistance:
  • 4 kV contact discharge
  • 8 kV air discharge
  • 10 V/m RF immunity (80–2000 MHz)

Indicators

• 96 green LEDs for input status
• 1 green LED for backplane communication
• 1 red LED for fault indication

Environmental Conditions

• Operating Temperature: 0°C to 60°C
• Storage Temperature: –40°C to 85°C
• Humidity: up to 95% non-condensing
• Operating Altitude: up to 5000 m

Mechanical Details

• Module Format: Standard Quantum
• Mounting: Quantum backplane
• Weight: 0.3 kg

Lifecycle Information

• Discontinued: December 31, 2022
• Service Support Until: December 31, 2030

Recommended Replacement:

• Schneider Electric BMXDDI6402K (Modicon X80 series, 64-channel input module)

Applications

The 140DDI36400 is suitable for high-channel-count input acquisition in:

• Large-scale manufacturing systems
• Process automation plants
• Power generation and distribution systems
• Water treatment and infrastructure facilities
• Conveyor and material handling systems

FAQ

Q: What type of field devices can be connected to this module? A: It accepts signals from dry contacts, proximity sensors, limit switches, and other 24 VDC digital input devices.

Q: How are the inputs organized? A: Inputs are divided into six isolated groups, each containing 16 channels, improving noise immunity and wiring flexibility.

Q: Is this module still available for new projects? A: No, it has been discontinued. For new installations, Schneider recommends using the BMXDDI6402K from the Modicon X80 platform.