SIEMENS 6SL3725-1TE38-4AA3 SINAMICS S120 Single Motor Module 450kW 840A Liquid Cooled IP21 Cabinet 400V

The SIEMENS 6SL3725-1TE38-4AA3 SINAMICS S120 single motor module stands as a high-performance drive solution, boasting a 450kW power rating and an 840A current output. Its liquid-cooled design and IP21 cabinet rating ensure robust operation in demanding industrial environments, operating at 400V. This module excels in applications requiring precise motion control and high dynamic response, making it a cornerstone for complex automation tasks.

Product Specifications

| Parameter              | Value                                       |

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

| Product Type           | SINAMICS S120 Single Motor Module           |

| Model Number           | 6SL3725-1TE38-4AA3                          |

| Power Output           | 450 kW                                      |

| Rated Current          | 840 A                                       |

| Cooling Method         | Liquid Cooled                               |

| Enclosure Rating       | IP21 Cabinet                                |

| Input Voltage          | 400 V                                       |

| Control Type           | Advanced vector control, servo control      |

| Communication Interfaces | PROFINET, PROFIBUS, EtherNet/IP (optional) |

| Protection Features    | Overload, short-circuit, over-voltage       |

Core Features & Market Positioning

The SINAMICS S120 platform, with the 6SL3725-1TE38-4AA3 as a prime example, is engineered for sophisticated drive tasks, setting it apart through its advanced control algorithms and high power density. Its liquid-cooling system offers superior thermal management compared to air-cooled alternatives, enabling continuous operation at peak performance even under heavy loads. This positions the S120 as a premium solution for industries demanding reliability and efficiency, such as manufacturing, material handling, and complex machinery.

Key Application Scenarios

This SIEMENS 6SL3725-1TE38-4AA3 module is exceptionally suited for high-power applications like large press drives, sophisticated winding machines, and high-speed conveyor systems. Its precision control makes it ideal for servo applications where exact positioning and dynamic acceleration/deceleration are critical. Industries benefiting include automotive manufacturing, plastics processing, and metal fabrication, where consistent and powerful motor control is paramount for product quality and throughput.

Practical System Integration Guidance

Integrating the SINAMICS S120 requires careful consideration of its liquid-cooling circuit. Ensure proper connection to a compatible cooling unit and maintain the specified coolant flow rate and temperature to prevent overheating. For communication, harness the module's PROFINET interface for seamless integration into Siemens TIA Portal environments, simplifying parameterization and diagnostics. Wiring must adhere to stringent industrial standards, paying close attention to grounding and shielding to mitigate electrical interference.

Operation and Risk Mitigation

Safe operation of the 6SL3725-1TE38-4AA3 necessitates adherence to manufacturer guidelines, especially concerning the high-voltage and liquid-cooling systems. Regularly monitor coolant levels and temperature; low coolant or excessive temperature will trigger fault codes and potentially lead to system shutdown. Familiarize yourself with common fault codes, such as F30000 series for drive faults, and consult the SINAMICS S120 operating manual for detailed troubleshooting steps. Always implement appropriate lockout/tagout procedures during maintenance.

Scalability & Long-Term Value

The SINAMICS S120 platform offers excellent scalability, allowing for the expansion of motor control capabilities by adding further modules to a central control unit. Its compatibility with various Siemens automation systems and its support for industry standards like PROFINET ensure a future-proof investment. Integration with Industrial IoT (IIIoT) platforms through its communication interfaces enables advanced data analytics, predictive maintenance, and remote monitoring, enhancing operational efficiency and long-term value.

FAQs

What are the main benefits of liquid cooling in the SINAMICS S120?

Liquid cooling provides superior heat dissipation for high-power modules. This ensures stable performance under heavy loads. It allows for more compact drive system designs by removing the need for large air-cooling fans.

How do I connect the SIEMENS 6SL3725-1TE38-4AA3 to a control system?

Utilize the PROFINET interface for seamless integration with Siemens TIA Portal. Ensure proper network configuration and IP addressing. The module supports various communication protocols for flexible system integration.

What is the typical power range for SINAMICS S120 single motor modules?

SINAMICS S120 single motor modules cover a wide power range. This specific module is rated for 450kW. Other modules in the S120 line cater to lower and even higher power requirements.

What safety precautions are necessary when working with this drive?

Always follow lockout/tagout procedures for maintenance. Ensure proper grounding to prevent electrical hazards. Understand the high voltage present and the risks associated with the liquid-cooling system.

Can the 6SL3725-1TE38-4AA3 be used for motion control applications?

Yes, the SINAMICS S120 is designed for advanced motion control. It supports precise positioning and dynamic movements. This makes it ideal for servo applications requiring high accuracy.

What are common fault codes for the SINAMICS S120?

Faults are typically indicated by codes, often in the F30000 series. These codes relate to drive-specific issues. Refer to the official SINAMICS S120 operating manual for a full list and troubleshooting.

How does liquid cooling improve performance compared to air cooling?

Liquid cooling offers higher thermal conductivity, removing heat more efficiently. This allows for sustained high-power output without derating. It also leads to quieter operation and reduced dust accumulation.

What is the IP rating of the SIEMENS 6SL3725-1TE38-4AA3 cabinet?

The cabinet for this module has an IP21 rating. This means it offers protection against solid objects larger than 12.5mm and vertically falling water drops. It's suitable for many industrial environments.

How can I ensure optimal long-term value with this drive?

Integrate it with Siemens IIoT solutions for advanced diagnostics. Perform regular maintenance on the cooling system. Leverage its scalability for future system expansions and upgrades.

What communication options are available for the SINAMICS S120?

Standard options often include PROFINET. PROFIBUS and EtherNet/IP might also be available, depending on the specific configuration. These interfaces facilitate seamless data exchange with higher-level control systems.