Schneider 140CRA21120 DIO Drop Interface Module

Overview

The Schneider Modicon 140CRA21120 is a DIO drop interface module designed for the Modicon Quantum platform. It ensures fast data transfer and stable communication for industrial control systems. The module integrates advanced diagnostics and strong protection features. As a result, it provides reliable and safe operation in harsh environments. Furthermore, it supports a wide range of backplanes, offering flexibility in system design.

Technical Specifications

• Product Type: DIO Drop Interface Module

• Manufacturer: Schneider Electric

• Model Number: 140CRA21120

Electrical Specifications

• Rated Supply Voltage: 24 V DC

• Supply Voltage Range: 20–30 V DC

• Maximum Supply Current: 1.6 A at 24 V

• Inrush Current: 30 A at 24 V

• Output Voltage: 5.1 V

• Nominal Output Current: 3 A

• Associated Fuse Rating: 2.5 A

I/O and Performance

• I/O Words: 30 inputs / 32 outputs

• Maximum Buffer Time: 1 ms

• Power Dissipation: 11 W

• Typical Backplanes: 2, 3, 4, 6, 10, 16 positions

Protection and Diagnostics

• Short-Circuit Protection: Yes

• Overvoltage Protection: Yes

• Diagnostics: RAM address verification and checksum validation

Environmental Ratings

• Operating Temperature: 0–60°C

• Storage Temperature: -40–85°C

• Relative Humidity: 95% (non-condensing)

• Operating Altitude: ≤ 5000 m