Schneider Electric Modicon Quantum 140CRA21120 DIO Module

Schneider Electric 140CRA21120 DIO Drop Interface for Modicon Quantum

The Schneider Electric 140CRA21120 is a distributed I/O (DIO) drop interface module for the Modicon Quantum platform. It provides a robust and redundant connection point for expanding I/O networks in industrial automation systems.

Core Technical Specifications

• Model: 140CRA21120
• Network Ports: 2 redundant ports for reliable communication
• Supply Voltage: 24 V DC nominal (20–30 V range)
• Supply Current: 1.6 A max
• Inrush Current: 30 A
• Output Power: 5.1 V at 3 A nominal for connected devices
• Protection: Integrated short-circuit and overvoltage protection
• I/O Capacity: 30 input words / 32 output words per drop
• Connection: 7-pole terminal block for power and network

Electrical & Environmental Data

• Recommended Fuse: 2.5 A
• Maximum Buffer Time: 1 ms
• Power Dissipation: 11 W
• Operating Temperature: 0 to 60 °C
• Storage Temperature: -40 to 85 °C
• Humidity: Up to 95% non-condensing
• Altitude: Operational up to 5000 meters

Compatibility & Mounting

• Compatible Backplanes: Standard 2, 3, 4, 6, 10, and 16-position Quantum backplanes.
• Function: Acts as the interface head for a distributed I/O drop, managing data exchange with the main controller.

Frequently Asked Questions

• Q: What is the main function of the 140CRA21120 module?
  A: It serves as the communication and power interface for a remote distributed I/O drop, connecting a group of I/O modules back to the Quantum controller.
• Q: Why does it have two network ports?
  A: The dual ports provide redundant communication paths, enhancing network reliability and allowing for daisy-chaining of multiple drops.
• Q: What power does it provide to attached I/O modules?
  A: It regulates the 24V input down to a stable 5.1V output, supplying up to 3A of current to the I/O modules on its backplane.
• Q: How many I/O points can one drop handle?
  A: Each drop configured with this interface can address up to 30 input words and 32 output words.
• Q: What safety features are included?
  A: The module includes built-in protection against short circuits and overvoltage conditions to safeguard connected equipment.

Packaging & Ordering

• Includes one 140CRA21120 DIO Drop Interface Module.
• Shipped promptly via FedEx, UPS, or DHL.
• Installation guides and datasheets are provided for system integration.

Extend your control system reliably with the Schneider Electric 140CRA21120. Its redundant design and integrated power supply make it a key component for building robust distributed I/O networks.

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