ABB RDCU–12C 3AUA0000036521 Drive Control Unit

1. Product Overview

The ABB RDCU–12C (3AUA0000036521) Drive Control Unit is a key module in ABB industrial drives and automation systems, providing precise motor control, drive management, and system monitoring functions.

This control unit enables accurate start/stop, speed and torque control, and fault protection, integrating seamlessly with ABB low-voltage or medium-voltage drive systems to ensure safe and reliable operation.

2. Technical Specifications (Typical)

• Model: RDCU–12C

• Part Number: 3AUA0000036521

• Type: Drive Control Unit

• Input Power:

  • AC/DC 24–48 V (typical, system-dependent)

• Control Functions:

  • Start/Stop control

  • Speed and torque adjustment

  • Overload protection

  • Fault monitoring and alarm

• Interfaces & Communication:

  • Digital I/O

  • Analog I/O

  • Fieldbus / Industrial Ethernet support (e.g., Profibus, Modbus, EtherNet/IP)

• Operating Temperature:

  • -20 °C to +60 °C

• Storage Temperature:

  • -40 °C to +85 °C

• Mounting:

  • Control cabinet or drive rack installation

  • Modular structure for easy replacement and expansion

• Construction:

  • Industrial-grade components

  • Suitable for 24/7 continuous operation

  • High reliability under voltage fluctuations and industrial noise

3. Advantages & Features

✔ High-performance drive control for precise motor operation
✔ Industrial-grade reliability for continuous operation
✔ Modular design for seamless integration with ABB drives and I/O modules
✔ Multi-protocol communication for PLC/DCS and higher-level system integration
✔ Built-in protection: overload, short-circuit, overvoltage, overtemperature

4. Typical Applications

• ABB low-voltage and medium-voltage drive systems
• Motor control in industrial automation production lines
• Pump, fan, and compressor drive management
• Material handling and conveyor systems
• Power and energy management
• Factory equipment monitoring and maintenance projects

5. Installation & Operation Notes

• Verify input voltage before installation
• Avoid high humidity, dust, and vibration; ensure proper ventilation
• Follow wiring standards for control signals, communication, and power connections
• Use ESD precautions during installation or maintenance
• Perform system-level commissioning to ensure stable communication with drives and supervisory systems

The structure and details of the product：

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