SIEMENS 6SL3725-1TE41-2MA3 SINAMICS S120 Single Motor Module Compact 400mm Width 710kW 1260A Liquid Cooled 400V

The SIEMENS 6SL3729-1TE41-2MA3 SINAMICS S120 Single Motor Module is a high-performance drive solution engineered for demanding industrial applications. This liquid-cooled unit boasts a robust 710kW power output and 1260A current rating, housed within a compact 400mm width. Its advanced SINAMICS S120 platform delivers exceptional precision, efficiency, and reliability, making it a superior choice for motion control and automation challenges. The integrated liquid cooling system ensures optimal thermal management, even under continuous heavy loads, safeguarding performance and extending operational lifespan.

Product Specifications

| Feature                   | Specification                                           |

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

| Product Number            | 6SL3729-1TE41-2MA3                                      |

| Series                    | SINAMICS S120                                           |

| Type                      | Single Motor Module                                     |

| Cooling                    | Liquid Cooled                                           |

| Rated Power               | 710 kW                                                  |

| Rated Current             | 1260 A                                                  |

| Voltage                   | 400 V                                                   |

| Module Width              | 400 mm                                                  |

| Control Type              | Vector Control, Servo Control                           |

| Communication Interfaces  | PROFINET, PROFIBUS DP                                   |

| Protection Class          | IP20                                                    |

| Ambient Temperature Range | 0 – 45 °C (with appropriate cooling medium)             |

| Dimensions (H x W x D)    | Specific dimensions would be detailed in a full datasheet |

Core Features & Market Positioning

The SIEMENS 6SL3729-1TE41-2MA3 distinguishes itself through its advanced control capabilities, offering highly dynamic and precise motion control essential for sophisticated automation tasks. Its integration within the Siemens automation ecosystem provides seamless compatibility with other Siemens products, facilitating integrated automation solutions. The liquid-cooled design is a critical differentiator, allowing for higher power density and superior thermal performance compared to air-cooled counterparts, thereby enabling operation in challenging environments and supporting continuous duty cycles without performance degradation. This positions the SINAMICS S120 module as a premium, robust solution for industries requiring maximum uptime and precise control.

Key Application Scenarios

This SIEMENS SINAMICS S120 module finds its optimal application in high-power, precision-driven industrial sectors. It is extensively used in machine tools, printing presses, textile machinery, and automated manufacturing lines where accurate speed and position control are paramount. The 710kW power rating makes it suitable for heavy-duty applications such as large extruders, winders, and material handling systems. Furthermore, its robust design and liquid cooling are ideal for environments with high ambient temperatures or space constraints, where traditional air-cooled drives would struggle to maintain performance.

Practical System Integration Guidance

Integrating the SIEMENS 6SL3729-1TE41-2MA3 requires careful consideration of its liquid cooling system. A dedicated liquid cooling loop, including a pump, heat exchanger, and coolant reservoir, must be established and properly maintained. Proper electrical connections are crucial; ensure that the power supply, motor, and control signals are wired according to the module's documentation, paying close attention to grounding and shielding to prevent electrical noise. Commissioning typically involves configuring the drive parameters using Siemens' TIA Portal software, setting motor data, control modes, and safety functions to match the specific application requirements.

Operation and Risk Mitigation

Operating the SINAMICS S120 module necessitates adherence to safety protocols. Before commissioning, ensure all safety interlocks and emergency stop circuits are correctly implemented. Regular monitoring of coolant temperature and flow is vital to prevent overheating, which can lead to component damage and system downtime. Common troubleshooting often involves checking diagnostic messages displayed on the operator panel or within the TIA Portal. Critical fault codes, such as those related to overcurrent or overtemperature, should be addressed immediately by consulting the Siemens fault code directory for specific remediation steps, which may include verifying motor connections, power supply stability, or the cooling system's efficacy.

Scalability & Long-Term Value

The SINAMICS S120 platform is inherently scalable, allowing for the expansion of automation systems by adding further S120 modules or integrating with other Siemens components like PLCs (e.g., S7 series) and HMIs. Its compatibility with industrial communication protocols such as PROFINET and PROFIBUS ensures seamless integration into existing or new networked automation architectures, supporting the transition towards Industry 4.0 and IIoT initiatives. This modularity and backward compatibility offer significant long-term value by protecting investment and enabling future upgrades and system enhancements without requiring a complete overhaul.

Frequently Asked Questions

What are the primary benefits of the SIEMENS 6SL3729-1TE41-2MA3?

This drive offers exceptional power density and thermal control due to its liquid cooling system. It delivers precise, high-dynamic motion control, enhancing machine performance and efficiency. The Siemens SINAMICS S120 platform ensures robust operation and long-term reliability.

What types of industries commonly use this SINAMICS S120 module?

High-performance machine tool manufacturing is a key sector for this module. It is also widely adopted in packaging, printing, and material handling industries. Demanding applications requiring precise control and high power are ideal.

How is the liquid cooling system for this Siemens drive managed?

A dedicated liquid cooling loop with a pump and heat exchanger is required. Coolant flow and temperature must be consistently monitored for optimal performance. Proper maintenance of the cooling circuit is essential to prevent overheating.

What communication protocols does the 6SL3729-1TE41-2MA3 support?

This module supports PROFINET for high-speed industrial Ethernet communication. It also offers PROFIBUS DP connectivity for established fieldbus networks. These protocols enable seamless integration into automation systems.

Can this module be used with different motor types?

Yes, the SINAMICS S120 platform is designed to control various AC synchronous and asynchronous motors. It supports both vector control and servo control for versatile application adaptation. Specific motor parameters must be configured during setup.

What safety features are integrated into the 6SL3729-1TE41-2MA3?

This drive often includes safety integrated functions like Safe Torque Off (STO). Additional safety features can be configured via the control system or optional safety modules. Always refer to the product manual for a complete list.

What is involved in commissioning this Siemens drive?

Commissioning requires careful wiring of power and control connections. Parameter configuration using TIA Portal software is essential. This includes setting motor data, control loops, and safety functions.

What are common troubleshooting steps for SINAMICS S120 modules?

Check diagnostic messages on the operator panel or in TIA Portal. Verify motor and power supply connections for faults. Ensure the cooling system is functioning correctly and within its operating range.

How does the 400mm width impact installation?

The 400mm width allows for a compact installation footprint, especially in control cabinets. This is crucial where space is limited. It facilitates higher power density within a smaller cabinet volume.

What is the long-term value of investing in this SIEMENS drive?

Scalability within the SINAMICS S120 family provides upgrade paths. Seamless integration with other Siemens automation components ensures system longevity. This protects investment and supports future automation needs.