SIEMENS 6SL3720-1TG31-2AA3 SINAMICS S120 Single Motor Module with CIM for CU320-2 110kW 120A Drive Stage 690V

The Siemens 6SL3720-1TG31-2AA3 SINAMICS S120 Single Motor Module, integrated with a Control Interface Module (CIM) for the CU320-2, represents a robust and versatile solution for demanding industrial applications. This drive stage is engineered for high performance, offering a 110kW power rating and a 120A continuous current output at 690V. Its modular design, characteristic of the SINAMICS S120 family, ensures excellent scalability and seamless integration into complex automation systems. With advanced control capabilities, this module delivers precise motion control, high dynamic response, and enhanced operational efficiency. The integrated CIM facilitates direct communication with the CU320-2 control unit, streamlining system architecture and simplifying commissioning. The unit's air-cooling system and IP20 rating are suitable for cabinet installations.

SIEMENS 6SL3720-1TG31-2AA3 SINAMICS S120: Technical Specifications and Performance

The SIEMENS 6SL3720-1TG31-2AA3 SINAMICS S120 Single Motor Module is a high-performance drive stage designed for demanding industrial applications. Its key technical specifications are outlined below:

| Feature                 | Specification                                                                          |

| :---------------------- | :------------------------------------------------------------------------------------- |

| Product Number          | 6SL3720-1TG31-2AA3                                                                     |

| Product Family          | SINAMICS S120 Cabinet Module                                                           |

| Type                    | Single Motor Module with CIM for CU320-2                                               |

| Input Voltage           | 675-1035 V DC                                                                          |

| Output Voltage          | 0-690V 3AC                                                                             |

| Rated Output Power      | 110 kW                                                                                 |

| Rated Output Current    | 120 A                                                                                  |

| Cooling                 | IP20 Air Cooling                                                                       |

| Control Unit Interface  | CIM (Control Interface Module) for CU320-2                                             |

| Format                  | Cabinet Unit                                                                           |

| Product Lifecycle       | Active Product                                                                         |

| Net Weight              | 145.00 Kg                                                                              |

| Standard Delivery Time  | 140 Days                                                                               |

| RoHS Compliance         | Since: 22.07.2019                                                                      |

Core Features & Market Positioning

The SIEMENS 6SL3720-1TG31-2AA3 stands out in the industrial automation market due to its robust construction and advanced technological integration within the SINAMICS S120 platform. This drive stage offers a compelling combination of high power density, precise control, and system flexibility, positioning it as a superior choice for applications demanding exceptional performance and reliability. The modularity of the SINAMICS S120 system allows for a "build-as-needed" approach, enabling users to precisely configure their drive solutions, thereby optimizing costs and performance. Its integration capabilities, particularly with the CU320-2 control unit via the CIM, simplify complex multi-axis setups and reduce engineering overhead. The system's ability to support advanced control modes like vector and servo control ensures that it can meet the stringent requirements of motion-critical applications, differentiating it from less sophisticated drive solutions.

Key Application Scenarios

The SIEMENS 6SL3720-1TG31-2AA3 SINAMICS S120 drive stage is exceptionally well-suited for a wide array of demanding industrial applications that require precise motion control, high torque, and reliable operation. Its 110kW power output and 120A current capacity make it ideal for powering large machinery in sectors such as:

  Manufacturing and Assembly: Driving complex automation lines, robotics, and high-speed production machinery where precise synchronization and rapid acceleration/deceleration are critical.  Material Handling and Logistics: Powering heavy-duty conveyors, automated storage and retrieval systems (AS/RS), and sophisticated sorting equipment in distribution centers and warehouses.  Printing and Packaging: Ensuring high-precision roll handling, accurate paper feeding, high-speed filling, and synchronized cutting operations in demanding packaging and printing processes.  Metals and Mining: Operating heavy machinery such as rolling mills, presses, and large-scale extraction equipment where robust torque and continuous operation are paramount.  Automotive Manufacturing: Facilitating robotic assembly lines, automated inspection systems, and precise movement of components.

The drive's flexibility and scalability allow it to be tailored to specific application needs, ensuring optimal performance and efficiency across various industrial environments.

Practical System Integration Guidance

Integrating the SIEMENS 6SL3720-1TG31-2AA3 into an industrial control system involves careful consideration of its connection to the CU320-2 control unit and the overall network architecture. The module utilizes a Control Interface Module (CIM) which connects to the CU320-2, enabling seamless data exchange and control commands. The SINAMICS S120 system relies heavily on the DRIVE-CLiQ interface for communication between modules, simplifying wiring and enabling automatic detection of connected components via their electronic type plates. This feature significantly reduces commissioning time and minimizes potential errors during setup. For optimal performance and to prevent signal degradation, Siemens recommends specific minimum cable lengths when connecting Motor Modules in parallel or to motors with single-winding systems. The system integrates well within the Siemens Totally Integrated Automation (TIA) ecosystem, allowing for unified engineering, data management, and communication through tools like the TIA Portal, SIMATIC, and STARTER commissioning software. This unified approach simplifies the entire lifecycle management of the drive system.

Operation and Risk Mitigation

Operating the SIEMENS 6SL3720-1TG31-2AA3 SINAMICS S120 drive module requires adherence to safety protocols and an understanding of potential operational challenges. Siemens emphasizes that products should only be used as described in the relevant technical documentation, and proper installation, commissioning, and maintenance are crucial for safe and reliable operation. Qualified personnel, possessing the necessary training and experience, must handle its operation to identify and mitigate potential hazards. While specific fault codes are best referenced in the detailed product manuals, common issues in drive systems can include parameterization errors, incorrect cabling, or environmental factors affecting performance. To mitigate risks, Siemens recommends regular firmware updates for security and performance improvements, while ensuring all control units in a system share the same firmware version. It's also advised to back up parameters before updates and test them on a single unit before widespread deployment. The drive system's robust design contributes to its reliability, but operational disruptions can occur if environmental conditions exceed specified limits or if unauthorized modifications are made.

Scalability & Long-Term Value

The SINAMICS S120 platform, including the 6SL3720-1TG31-2AA3 module, is fundamentally designed for scalability and long-term value. Its modular, building-block architecture allows for systems to start small and expand incrementally without requiring a complete redesign. This flexibility accommodates evolving production needs and allows for the addition of more axes or increased power as required. Compatibility with existing Siemens automation platforms, such as SIMATIC and SIMOTION, through the TIA ecosystem, ensures seamless integration and leverages existing infrastructure. Furthermore, the SINAMICS S120 is poised for integration with Industry 4.0 initiatives and Industrial Internet of Things (IIoT) solutions, offering features like integrated condition monitoring and data matrix codes for easy access to technical data, facilitating digital transformation and predictive maintenance strategies. This forward-looking design ensures that the investment in a SINAMICS S120 system delivers sustained performance and adaptability in the face of technological advancements.

Frequently Asked Questions (FAQs)

Q: What is the primary function of the SIEMENS 6SL3720-1TG31-2AA3 SINAMICS S120 module?

The SIEMENS 6SL3720-1TG31-2AA3 is a single motor module within the SINAMICS S120 drive system. Its primary function is to convert DC power to AC power to drive a single motor. It incorporates a Control Interface Module (CIM) for seamless communication with the CU320-2 control unit, enabling sophisticated motion control and system management. This module forms a critical component in high-performance, multi-axis industrial automation setups.

This module provides the power electronics necessary for precise speed and torque control of connected motors. It is designed for cabinet integration and air cooling, ensuring efficient operation within industrial control panels. The integrated CIM is key to its functionality within the broader SINAMICS S120 architecture.

Its role extends beyond simple motor control; it's an integral part of a scalable system that allows for complex machine designs and high levels of automation. The module's specifications, including its 110kW rating and 120A output, highlight its suitability for heavy-duty industrial applications requiring substantial power.

Q: How does the CIM (Control Interface Module) in the 6SL3720-1TG31-2AA3 facilitate system integration?

The CIM is essential for connecting the SIEMENS 6SL3720-1TG31-2AA3 motor module to the CU320-2 control unit. It acts as the communication bridge, allowing the control unit to send commands and receive feedback from the motor module. This standardized interface simplifies the complex interconnections required in multi-drive systems.

By using the CIM, system integrators can leverage the CU320-2's advanced control capabilities, such as precise positioning, synchronized motion, and integrated safety functions. The CIM ensures efficient data transfer for these advanced operations.

This integration streamlines the overall system architecture, reducing wiring complexity and the potential for errors. It also contributes to faster commissioning and easier maintenance of the drive system.

Q: What are the key advantages of using the SINAMICS S120 platform, and specifically this 6SL3720-1TG31-2AA3 module?

The SINAMICS S120 platform is renowned for its high performance, precision, and scalability. The 6SL3720-1TG31-2AA3 module benefits from this, offering a robust 110kW power output and advanced control features. Its modular design allows for easy expansion and customization of drive systems.

A significant advantage is its seamless integration within Siemens' Totally Integrated Automation (TIA) ecosystem, facilitating unified engineering and diagnostics. The use of DRIVE-CLiQ interfaces simplifies connections and enables automatic component identification, reducing setup time and errors.

The platform's ability to support various control modes (vector, servo) ensures it can meet diverse and demanding application requirements, providing long-term value and flexibility for evolving industrial needs.

Q: Can the SIEMENS 6SL3720-1TG31-2AA3 be used in applications requiring high dynamic performance?

Yes, the SIEMENS 6SL3720-1TG31-2AA3 is specifically designed for high-performance applications demanding dynamic motion control. The SINAMICS S120 platform, to which this module belongs, is engineered for high dynamic response and precise motion control, making it ideal for tasks requiring rapid acceleration and deceleration.

This module, when coupled with the CU320-2 control unit, supports advanced control algorithms such as vector control and servo control. These control methods provide the necessary precision and speed to handle demanding dynamic applications like robotics, high-speed packaging, and precise material handling.

Its 110kW power and 120A current ratings ensure it can deliver the torque and power required to achieve rapid movements and maintain tight control even under challenging load conditions.

Q: What type of cooling does the 6SL3720-1TG31-2AA3 use, and where is it typically installed?

The SIEMENS 6SL3720-1TG31-2AA3 utilizes air cooling and has an IP20 enclosure rating. This means it is protected against solid objects larger than 12.5 mm but is not protected against water ingress.

Due to its air-cooling design and IP20 rating, this module is typically installed within industrial control cabinets or enclosures. This provides a controlled environment, protecting the drive from dust, moisture, and other contaminants that could affect its performance or longevity.

Proper ventilation within the cabinet is crucial for effective air cooling. The module's design allows for integration into standard industrial lineups, contributing to a compact and organized control system setup.

Q: How does the SINAMICS S120 system support scalability and future upgrades?

The SINAMICS S120 system is inherently designed for scalability thanks to its modular architecture. Users can start with a basic configuration and easily expand by adding more motor modules, line modules, or control units as their application requirements grow, without needing to replace the entire system.

The DRIVE-CLiQ interface plays a vital role in this scalability, allowing for flexible connection of various modules and components. This standardized interface simplifies the process of adding new components and ensures compatibility within the S120 family.

Furthermore, Siemens' commitment to backward compatibility and integration with its broader automation portfolio (like TIA Portal) ensures that systems can be upgraded or expanded with newer technologies, maximizing the long-term value of the investment.

Q: What is the voltage input range for the SIEMENS 6SL3720-1TG31-2AA3?

The SIEMENS 6SL3720-1TG31-2AA3 SINAMICS S120 Single Motor Module operates with a DC input voltage range of 675V to 1035V. This specific input voltage range is characteristic of cabinet modules designed for higher power applications.

This DC input is typically derived from an upstream Line Module or a DC power source. The module then converts this DC voltage into a variable 3-phase AC output voltage, ranging from 0V to 690V, to control the connected motor.

Understanding this input voltage is critical for system design, ensuring compatibility with the chosen power supply and line modules to achieve the required operational parameters for the 110kW motor drive.

Q: What is the role of the CU320-2 control unit when used with the 6SL3720-1TG31-2AA3?

The CU320-2 control unit serves as the "brain" of the SINAMICS S120 system when used with the 6SL3720-1TG31-2AA3 motor module. It handles the high-level motion control, safety functions, and communication protocols for the entire drive system, including this specific motor module.

Through the CIM, the CU320-2 sends commands for speed, torque, and position to the 6SL3720-1TG31-2AA3, and receives feedback about the motor's status. This allows for sophisticated coordinated motion control across multiple axes if other motor modules are present.

The CU320-2 enables advanced functionalities such as complex positioning tasks, safety integrated functions, and drive control charts, significantly reducing the need for external controllers and simplifying the overall system architecture.

Q: Does the SIEMENS 6SL3720-1TG31-2AA3 support regenerative braking?

While the SIEMENS 6SL3720-1TG31-2AA3 is a motor module responsible for outputting power to a motor, regenerative braking capability is typically handled by the upstream Line Module in a SINAMICS S120 system. Active Line Modules, for instance, can feed braking energy back into the supply network, offering energy savings.

The motor module itself converts DC link voltage to AC motor voltage, and its interaction with the overall system determines regenerative capabilities. If the system includes a regenerative Line Module, the motor module will participate in the energy flow by allowing power to be driven back to the DC bus during braking.

Therefore, while the 6SL3720-1TG31-2AA3 doesn't inherently perform regenerative braking, it functions within a system architecture that can support and utilize this energy-saving feature when configured with appropriate Line Modules.

Q: How is commissioning and configuration handled for the 6SL3720-1TG31-2AA3 within the SINAMICS S120 system?

Commissioning and configuration are streamlined within the SINAMICS S120 system, largely due to its modular design and integrated intelligence. The use of electronic type plates on modules like the 6SL3720-1TG31-2AA3 allows for automatic identification via the DRIVE-CLiQ interface, minimizing manual data entry and setup errors.

Siemens' TIA Portal or the STARTER commissioning tool are typically used for configuring parameters, motion control logic, and safety functions. These software platforms provide a unified environment for engineering the entire drive system, including the CU320-2 control unit and all connected modules.

The CIM's role in communication with the CU320-2 also simplifies the setup of multi-axis coordination and integrated safety features. Pre-configured parameter sets and wizards within the software further assist in rapid and accurate commissioning.