SIEMENS 6SL3731-7TE38-8RE0 SINAMICS S120 Cabinet Modules 2 Active Line Module 560kW 900A Right Side Installation 400V

The SIEMENS 6SL3731-7带7TE38-8RE0 SINAMICS S120 Cabinet Module offers robust 560kW power output and 900A current capacity, designed for high-performance industrial applications. This active line module, intended for right-side installation, operates at 400V and represents a significant advancement in motor control technology. Its key advantages include superior energy efficiency, precise motion control, and seamless integration into complex automation systems, making it a preferred choice for demanding manufacturing environments.

| Feature                      | Specification                                     |

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

| Product Number               | 6SL3731-7TE38-8RE0                                |

| Product Line                 | SINAMICS S120 Cabinet Modules                     |

| Module Type                  | Active Line Module                                |

| Rated Power                  | 560 kW                                            |

| Rated Current                | 900 A                                             |

| Voltage                      | 400 V                                             |

| Installation Side            | Right Side                                        |

| Control Unit Compatibility   | Select SINAMICS S120 Control Units                |

| Protection Rating            | IP20 (Typical for cabinet modules)                |

| Communication Interfaces     | PROFINET, PROFIBUS (depending on control unit)    |

| Thermal Management           | Integrated cooling concept                        |

Core Features & Market Positioning

The SIEMENS 6SL3731-7TE38-8RE0 distinguishes itself through its active infeed technology, which significantly enhances grid compatibility and energy regeneration capabilities. Unlike passive rectifiers, active line modules actively condition the supply voltage, reducing harmonics and improving power factor, thereby minimizing grid feedback and optimizing energy costs. This advanced functionality positions the SINAMICS S120 system as a premium solution for industries prioritizing efficiency, reliability, and compliance with stringent power quality standards. Its robust design and Siemens' reputation for industrial automation excellence ensure long-term operational stability.

Key Application Scenarios

This cabinet module is engineered for high-dynamic applications across various industrial sectors. It is ideally suited for controlling large-scale machinery in areas such as printing and packaging, where precise speed and torque control are paramount. Furthermore, its power capacity makes it a prime candidate for material handling systems, metal processing equipment, and complex pump and fan drives in process industries. The 400V rating and high current handling are particularly beneficial for demanding motor applications requiring substantial starting torque and sustained operation.

Practical System Integration Guidance

Integrating the SIEMENS 6SL3731-7TE38-8RE0 requires careful consideration of cabinet layout and control unit selection. The module is designed for direct installation within Siemens control cabinets, often alongside compatible SINAMICS S120 control units and other drive components. Proper ventilation within the cabinet is crucial to maintain optimal operating temperatures, given the module's high power output. Connection to the mains supply and motor should adhere strictly to local electrical codes and the detailed wiring diagrams provided in the Siemens technical documentation. Commissioning typically involves configuring drive parameters via SIMOTION or SINAMICS Engineering software, ensuring safe and efficient motor operation.

Operation and Risk Mitigation

Safe operation of the SINAMICS S120 cabinet module hinges on adherence to all safety regulations and proper parameterization. Ensure that qualified personnel perform installation and maintenance. Key risks include electrical shock due to high voltages; always follow lockout/tagout procedures. Overheating can be mitigated through adequate cabinet cooling and monitoring drive temperatures. Common fault codes relate to overcurrent, overvoltage, or thermal overload, which can often be resolved by verifying load conditions, power supply stability, and cooling system performance. Refer to the product's detailed manual for specific fault code interpretations and troubleshooting steps.

Scalability & Long-Term Value

The SINAMICS S120 platform, including the 6SL3731-7TE38-8RE0, offers significant scalability. It can be expanded by adding further modules to achieve higher power ratings or to control multiple motors from a single system. Its compatibility with a wide range of Siemens automation components, including PLCs like SIMATIC S7, and its support for various industrial communication protocols (PROFINET, PROFIBUS) facilitate seamless integration into existing or future Industry 4.0 initiatives. This adaptability ensures long-term value by allowing systems to evolve with changing production demands and technological advancements.

FAQs

What is the primary function of the SIEMENS 6SL3731-7TE38-8RE0?

This active line module converts AC mains voltage into a DC link voltage. It actively controls the power flow, enabling energy regeneration back to the grid.

It also actively filters harmonics, improving power quality and reducing grid disturbances. This advanced functionality optimizes energy efficiency in demanding industrial drives.

How does the active line module differ from a passive rectifier in a SINAMICS S120 system?

Active line modules offer superior grid compatibility and higher energy efficiency. They actively manage power factor and reduce harmonic distortion significantly.

Passive rectifiers are simpler but generate more harmonics and offer limited regenerative capabilities. The active nature ensures a cleaner power footprint.

What are the typical industries that utilize the SIEMENS 6SL3731-7TE38-8RE0?

This module is prevalent in high-power, dynamic applications like metal processing and printing. It's also found in sophisticated material handling and automation systems.

Industries requiring precise motor control and high energy efficiency, such as those with regenerative braking needs, benefit greatly. Process industries with large pump and fan drives also employ it.

What is the power and current rating of this specific SINAMICS S120 module?

The SIEMENS 6SL3731-7TE38-8RE0 is rated for a continuous power output of 560 kW. Its maximum continuous current handling capacity is 900 Amperes.

This substantial power and current capability makes it suitable for the most demanding industrial motor applications. It ensures robust performance under heavy loads.

What voltage level does this module operate at?

This SINAMICS S120 cabinet module is designed to operate with a standard industrial input voltage of 400 Volts AC. This voltage is common in many manufacturing facilities worldwide.

Ensuring the correct mains supply voltage is crucial for the proper function and longevity of the drive system. Always verify your site's electrical specifications.

Can this module be installed in any cabinet, or are there specific requirements?

While designed for Siemens cabinets, installation requires adequate ventilation and space. Proper cooling is essential due to its high power output.

Always consult the technical documentation for precise dimensional and cooling requirements. Ensure compliance with local electrical safety standards during installation.

What control units are compatible with the 6SL3731-7TE38-8RE0?

This active line module is designed to work with specific SINAMICS S120 control units. The exact compatibility depends on the control unit's firmware and hardware version.

Refer to the Siemens product manual or online selection tools for a definitive list of compatible control units. Proper pairing ensures optimal system performance.

What are the main benefits of using an active line module for energy regeneration?

Active line modules allow energy generated during braking to be fed back to the power grid. This reduces overall energy consumption and operating costs.

This regenerative capability significantly improves the system's energy efficiency and environmental footprint. It's a key feature for sustainable industrial operations.

How important is harmonic filtering for this module's operation?

Active line modules inherently provide excellent harmonic filtering, resulting in a cleaner power output. This reduces interference with other electrical equipment on the same grid.

Effective harmonic mitigation is crucial for meeting increasingly strict grid code regulations and preventing network disturbances. It ensures a stable power supply.

What communication protocols are typically supported by SINAMICS S120 systems using this module?

SINAMICS S120 systems, when equipped with appropriate control units, commonly support PROFINET and PROFIBUS. These industrial Ethernet and fieldbus protocols ensure seamless integration into automation networks.

These protocols facilitate high-speed data exchange and diagnostics, enabling advanced control and monitoring capabilities. Compatibility with your existing network infrastructure is key.