SIEMENS 6SL3720-1TE38-4AA3 SINAMICS S120 Single Motor Module with CIM for CU320-2 450kW 840A Air Cooled 400V Range

The Siemens 6SL3720-1TE38-4AA3 SINAMICS S120 Single Motor Module is a high-performance drive solution engineered for demanding industrial applications. This air-cooled unit, operating within a 400V range, boasts a substantial 450kW power output and an 840A current rating, making it ideal for heavy machinery and complex motion control tasks. Its integrated Control Interface Module (CIM) for the CU320-2 control unit ensures seamless integration and advanced functionality, offering significant advantages in terms of precision, efficiency, and operational flexibility. The SINAMICS S120 platform is renowned for its robust design, advanced diagnostics, and ability to deliver precise motor control, positioning the 6SL3720-1TE38-4AA3 as a leading choice for engineers seeking reliability and cutting-edge performance in their automation systems.

Product Specifications

| Feature                     | Value                               |

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

| Product Number              | 6SL3720-1TE38-4AA3                  |

| Product Line                | SINAMICS S120                       |

| Module Type                 | Single Motor Module with CIM        |

| Control Unit Compatibility  | CU320-2                             |

| Power Rating                | 450 kW                              |

| Current Rating              | 840 A                               |

| Cooling Method              | Air Cooled                          |

| Voltage Range               | 400 V                               |

| Protection Class            | IP20                                |

| Dimensions (H x W x D)      | 585 mm x 295 mm x 283 mm            |

| Weight                      | Approximately 30 kg                 |

| Ambient Temperature (Operation) | 0°C to 45°C                         |

Core Features & Market Positioning

The Siemens 6SL3720-1TE38-4AA3 SINAMICS S120 distinguishes itself through its advanced vector control capabilities, enabling exceptional torque control and dynamic response critical for applications like robotics and automated manufacturing. Its integration with the CU320-2 control unit provides a highly flexible and powerful platform for complex drive tasks, supporting a wide range of motor types and feedback systems. This module's robust construction and Siemens' reputation for reliability position it as a premium solution for industries where downtime is costly and performance is paramount. The system's inherent safety features, including integrated safety functions, further enhance its market appeal for safety-critical operations.

Key Application Scenarios

This high-power SINAMICS S120 motor module is exceptionally well-suited for demanding applications within the manufacturing sector, including large-scale material handling systems, complex conveyor networks, and high-precision machine tools. Its robust current and power ratings make it a prime candidate for driving large industrial pumps, fans, and extruders where consistent torque and operational stability are essential. Furthermore, the module's advanced control features are beneficial in automated warehousing solutions and packaging machinery that require precise motion profiles and rapid acceleration/deceleration.

Practical System Integration Guidance

Integrating the Siemens 6SL3720-1TE38-4AA3 into an industrial control system involves careful consideration of power supply, motor connection, and control signal routing. The module requires a direct connection to a 400V AC power source, with appropriate circuit protection and disconnect switches. Motor cabling should be shielded to minimize electromagnetic interference, and connections must be made according to the terminal diagrams provided in the Siemens documentation. Commissioning typically involves parameterization via the CU320-2 control unit using Siemens' TIA Portal or STARTER software, where motor data, control modes, and safety settings are configured. Ensuring proper ventilation and adherence to the specified ambient temperature range are crucial for optimal performance and longevity.

Operation and Risk Mitigation

Safe operation of the SINAMICS S120 6SL3720-1TE38-4AA3 necessitates adherence to electrical safety standards and proper handling procedures. Before performing any maintenance or adjustments, the power supply must be completely disconnected and verified. The module incorporates various diagnostic and protection functions, including overcurrent, overvoltage, and undervoltage protection, to mitigate potential damage. Common operational concerns can include motor tuning issues, leading to suboptimal performance, or communication errors with the control unit. Comprehensive understanding of the CU320-2 error codes and corresponding troubleshooting steps, available in the product's technical manual, is vital for efficient fault resolution.

Scalability & Long-Term Value

The SINAMICS S120 platform, to which the 6SL3720-1TE38-4AA3 belongs, offers significant scalability and long-term value through its modular design and compatibility with Siemens' broader automation ecosystem. Engineers can expand system capabilities by adding more motor modules or control units, allowing for growth alongside production demands. Its integration with industrial Ethernet protocols facilitates connectivity with higher-level control systems and the Industrial Internet of Things (IIoT), enabling advanced data acquisition and predictive maintenance strategies. The inherent robustness and advanced features ensure that this drive solution remains relevant and efficient for years to come, offering a strong return on investment.

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Frequently Asked Questions

What is the primary function of the Siemens 6SL3720-1TE38-4AA3?

This module serves as a high-power drive for single electric motors, enabling precise control of speed and torque.

It is designed for demanding industrial automation tasks, offering robust performance and reliability.

Its integrated CIM ensures seamless communication with the CU320-2 control unit for advanced functionality.

Can the SINAMICS S120 6SL3720-1TE38-4AA3 be used with different motor types?

Yes, the SINAMICS S120 platform supports a wide array of motor types, including synchronous and asynchronous motors.

Specific motor parameters must be configured during commissioning for optimal performance and efficiency.

Feedback systems like encoders and resolvers are also supported to ensure precise motion control.

What are the typical applications for a 450kW SINAMICS S120 module?

It is commonly used for driving large industrial machinery such as extruders, large pumps, and heavy-duty mixers.

Applications in automated manufacturing lines, including complex robotics and high-speed packaging, benefit from its performance.

Material handling systems, such as heavy-duty cranes and large conveyor systems, are also suitable use cases.

How is the 6SL3720-1TE38-4AA3 module cooled, and what are the implications?

This module utilizes forced air cooling, requiring adequate ventilation in its installation environment.

Operating ambient temperatures should be monitored to prevent overheating and ensure continuous performance.

Proper airflow management is crucial for maintaining the module's operational efficiency and extending its lifespan.

What safety features are integrated into the SINAMICS S120 6SL3720-1TE38-4AA3?

The module incorporates standard safety functions like overcurrent and overvoltage protection.

It can be integrated with CU320-2 safety functions for advanced safety requirements, such as safe torque off.

Adherence to electrical safety codes and proper installation practices are paramount for safe operation.

What is the role of the CIM in this module?

The CIM (Control Interface Module) acts as the communication bridge between the power module and the CU320-2 control unit.

It enables the exchange of control signals, status information, and diagnostic data.

This integration allows for advanced control strategies and seamless integration into the SINAMICS S120 system.

What voltage range does the Siemens 6SL3720-1TE38-4AA3 operate within?

This motor module is designed to operate within a 400V AC voltage range.

It is essential to ensure the power supply is stable and within the specified tolerances for optimal performance.

Incorrect voltage supply can lead to module malfunction or damage.

How do I commission the SINAMICS S120 6SL3720-1TE38-4AA3 module?

Commissioning involves connecting the module to the CU320-2 and power supply, then parameterizing via software.

Siemens' TIA Portal or STARTER software is used for configuring motor data, control modes, and safety.

A thorough understanding of the application's requirements is necessary for effective parameter setup.

What are some common troubleshooting issues with this type of drive?

Common issues include motor tuning problems, communication errors with the control unit, or overload faults.

Diagnostic messages and error codes displayed on the CU320-2 are key indicators for troubleshooting.

Referencing the official Siemens documentation for specific error codes and solutions is essential.

How does this module contribute to IIoT integration?

The SINAMICS S120 platform supports industrial Ethernet communication protocols, enabling data exchange.

This connectivity allows for real-time monitoring, remote diagnostics, and integration with cloud-based analytics.

It facilitates predictive maintenance strategies and optimization of industrial processes through data insights.