REXROTH R911306455-106 Indracontrol L20 CML20.1-NP-120-NA-NNNN-NW
The REXROTH R911306455-106 Indracontrol L20 CML20.1-NP-120-NA-NNNN-NW is a high-performance, modular, and compact controller within Bosch Rexroth’s Indracontrol L20 series. It is designed for industrial automation systems, particularly in applications requiring precise control of machines and processes. With integrated I/O capabilities, communication interfaces, and real-time control, this controller is well-suited for automation tasks in manufacturing, robotics, and other industrial fields.
The Indracontrol L20 CML20.1 model represents the next step in Rexroth’s innovative and scalable automation solutions. It is engineered to optimize control functions, improve system integration, and streamline the development of customized applications with exceptional performance, making it an ideal choice for both small and large automation projects.

Key Features:
- Compact and Modular Design: The Indracontrol L20 controller features a compact, modular design, which makes it easy to integrate into a wide range of systems while saving valuable space in control panels.
- Powerful Processing: Built with an advanced processor for high-speed control, ensuring real-time performance for demanding applications.
- Integrated I/O: Comes with a variety of integrated digital and analog I/O, reducing the need for additional modules and simplifying installation and wiring.
- Flexible Connectivity: Supports a wide range of communication protocols like EtherCAT, CANopen, and Profinet, providing seamless integration with other devices and systems.
- Advanced Control Functions: Features include PID control, motion control, and sequence programming, allowing it to handle a variety of industrial tasks.
- Ethernet Connectivity: Enables remote access and monitoring, making it suitable for distributed automation systems.
- Expandable: The modular nature of the controller allows it to be easily expanded with additional I/O modules, communication modules, and other accessories for more complex applications.
- Durability: Designed for industrial environments, the controller is robust and capable of operating in harsh conditions, including high-vibration and temperature extremes.
Technical Specifications:
- Part Number: R911306455-106
- Model: Indracontrol L20 CML20.1-NP-120-NA-NNNN-NW
- Input Voltage: 24V DC (nominal)
- Power Consumption: Approximately 10-15W, depending on configuration and load
- Operating Temperature: -20°C to +60°C
- Humidity: 5% to 95% RH, non-condensing
- Dimensions: 180 mm x 130 mm x 60 mm (approx.)
- Weight: 0.6 kg
- Communication Ports:
- Ethernet (Profinet, EtherCAT)
- CANopen
- USB
- Control Capabilities: PID control, motion control, sequence control
- Digital I/O: 8 inputs, 8 outputs
- Analog I/O: 4 inputs, 2 outputs (configurable)
- Mounting: DIN rail or panel mount
- Safety: CE, UL, RoHS compliant
Protection and Safety Features:
- Overvoltage Protection: Safeguards the controller against voltage spikes and surges.
- Overcurrent Protection: Ensures the controller does not overload by detecting excessive current.
- Temperature Monitoring: Built-in temperature sensors protect against overheating, ensuring optimal performance in all conditions.
- Short Circuit Protection: Automatically detects and isolates faulty circuits to prevent damage to the system.
- Watchdog Timer: Monitors the controller’s internal processes, ensuring reliability and quick recovery in case of faults.
Installation and Maintenance Instructions:
- Installation:
- Mounting: Mount the Indracontrol L20 on a DIN rail or a flat panel in an environment with minimal vibration, moisture, and dust exposure.
- Wiring: Connect the power supply (24V DC) and ensure all communication cables are securely connected (Ethernet, CANopen, Profinet).
- I/O Connections: Wire the integrated digital and analog I/O terminals as per the wiring diagram. Ensure proper grounding of the device.
- Software Setup: Use Bosch Rexroth’s IndraWorks or other compatible software to configure and program the controller for your specific application.
- Maintenance:
- Periodically check for firmware updates through the IndraWorks software environment or Rexroth’s online support platform.
- Inspect the wiring connections for wear and tear or any loose connections.
- Clean the controller using a dry cloth, taking care not to allow moisture to enter the enclosure.
- Perform system tests to ensure the controller’s performance, especially after significant changes in the application or environment.
- Troubleshooting:
- Use the built-in diagnostic tools in IndraWorks to identify and troubleshoot any communication, hardware, or software issues.
- Review the status LEDs on the front panel of the controller to monitor its health and detect errors such as overcurrent or network failure.
Product Recommendations:
For additional controllers or expanded solutions, consider the following similar products:
| Product | Description | Link |
|---|---|---|
| Bosch Rexroth Indracontrol L30 | A more powerful version with extended I/O and processing capabilities for large applications. | Indracontrol L30 |
| Siemens S7-1200 | A versatile PLC offering similar functionalities in industrial automation systems. | Siemens S7-1200 |
| Schneider Electric Modicon M221 | Compact controller with high-level processing and flexible I/O expansion options. | Modicon M221 |
Advantages of REXROTH Indracontrol L20 CML20.1:
- High Integration: With integrated I/O, communication ports, and control functions, the L20 reduces the need for additional modules, simplifying your system design.
- Flexibility and Expandability: The modular nature allows users to easily add more I/O, communication, and processing modules as the application grows.
- Real-Time Control: Offers precise control over motion and processes, ensuring optimized machine performance.
- Connectivity: Flexible communication protocols like Profinet and EtherCAT enable easy integration with other automation equipment.
- Industrial-Grade Durability: Built to withstand harsh environments, making it ideal for a wide range of industrial applications.
Conclusion:
The REXROTH R911306455-106 Indracontrol L20 CML20.1-NP-120-NA-NNNN-NW is a robust and versatile controller for industrial automation, offering high performance, flexibility, and reliability. Its modular design, real-time processing capabilities, and extensive communication support make it an excellent choice for various automation and control tasks. Whether for machine control, robotics, or process automation, the Indracontrol L20 provides a compact yet powerful solution that can be easily integrated and scaled to meet the needs of any application.

