SIEMENS 6SL3725-1TE35-0AA3 SINAMICS S120 Single Motor Module 250kW 490A Liquid Cooled IP21 Cabinet 400V

The SIEMENS 6SL3725-1TE35-0AA3 SINAMICS S120 single motor module stands as a powerful and sophisticated drive solution engineered for demanding industrial applications. This liquid-cooled 250kW, 490A unit, operating at 400V and housed in an IP21 cabinet, delivers exceptional performance, efficiency, and reliability. Its advanced SINAMICS S120 platform ensures precise motion control, robust protection features, and seamless integration into complex automation systems. Key advantages include its high power density, advanced cooling for sustained operation, and comprehensive safety integrated functions. The module's design prioritizes operational efficiency and ease of maintenance, making it a cornerstone for critical machinery in various sectors.

Product Specifications

| Feature               | Specification                                   |

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

| Product Number        | 6SL3725-1TE35-0AA3                              |

| Product Family        | SINAMICS S120                                   |

| Type                  | Single Motor Module                             |

| Power Rating          | 250 kW                                          |

| Continuous Current    | 490 A                                           |

| Cooling Method        | Liquid Cooled                                   |

| Enclosure Type        | Cabinet                                         |

| IP Rating             | IP21                                            |

| Voltage Rating        | 400 V                                           |

| Control Unit          | (Requires compatible Control Unit, e.g., CU320) |

| Communication Options | PROFINET, PROFIBUS (via Control Unit)           |

Core Features & Market Positioning

The SIEMENS 6SL3725-1TE35-0AA3 SINAMICS S120 distinguishes itself through its advanced vector control capabilities, providing superior torque response and precise speed regulation even under dynamic load conditions. Its liquid cooling system is a significant differentiator, allowing for higher power density and extended operational cycles without thermal derating, a critical factor in high-performance industrial environments. This module is positioned as a premium solution for applications demanding robust performance, high efficiency, and unparalleled reliability, integrating seamlessly into Siemens' broader TIA Portal ecosystem for comprehensive automation solutions. Industry reviews often highlight its energy efficiency and advanced diagnostics, contributing to reduced operational costs and minimized downtime.

Key Application Scenarios

This high-performance single motor module is ideally suited for a wide array of demanding industrial applications. Its robust power output and precise control make it a prime choice for heavy-duty machinery such as large pumps, fans, extruders, and presses in the chemical, manufacturing, and processing industries. The 6SL3725-1TE35-0AA3 is particularly effective in applications requiring dynamic speed and torque control, ensuring optimal process outcomes and material handling. Its liquid cooling is essential for continuous operation in environments with high ambient temperatures or where space constraints limit conventional air cooling.

Practical System Integration Guidance

Integrating the SIEMENS 6SL3725-1TE35-0AA3 SINAMICS S120 module into a control system typically involves a compatible Siemens Control Unit, such as the CU320-2. The motor module connects to the Control Unit via a DRIVE-CLiQ interface. Power connections require adherence to local electrical codes and standards, ensuring proper grounding and fusing for the 400V supply. The liquid cooling circuit must be correctly plumbed with an appropriate coolant and flow rate, monitored by integrated sensors. Parameterization is typically performed using Siemens' STARTER commissioning software or within the TIA Portal environment, allowing for detailed configuration of motor data, control modes, and safety functions.

Operation and Risk Mitigation

Safe operation of the SIEMENS 6SL3725-1TE35-0AA3 SINAMICS S120 module mandates strict adherence to the manufacturer's safety guidelines and installation manuals. Key safety features include integrated safe torque off (STO) functionality, which immediately prevents motor rotation without requiring external components. Users must ensure proper grounding, ventilation for auxiliary components, and regular monitoring of the liquid cooling system's performance. Common fault codes, such as those related to overcurrent, overvoltage, or thermal issues, can be diagnosed via the control unit's display or commissioning software. Promptly addressing these faults, often by checking motor connections, load conditions, or coolant flow, is crucial for preventing equipment damage and ensuring operational continuity.

Scalability & Long-Term Value

The SINAMICS S120 platform, including the 6SL3725-1TE35-0AA3 motor module, offers significant scalability and long-term value. It integrates seamlessly with other Siemens automation components, such as PLCs and HMIs, within the TIA Portal, facilitating the creation of comprehensive, future-proof automation solutions. This compatibility ensures that upgrades to the control system or the addition of more drives can be managed efficiently. The modular design of the S120 system allows for expansion and adaptation to evolving production requirements. Furthermore, integration with Industrial IoT (IIoT) platforms enables advanced data analytics, predictive maintenance, and remote monitoring, enhancing operational efficiency and extending the lifecycle of the equipment.

Frequently Asked Questions

What is the primary function of the SIEMENS 6SL3725-1TE35-0AA3?

This module serves as a high-power drive for single electric motors. It precisely controls motor speed and torque for industrial machinery. It is designed for robust performance in demanding applications.

It enables efficient energy usage and advanced motion control. The liquid cooling ensures reliable operation under heavy loads. It's a key component in modern automation systems.

The 6SL3725-1TE35-0AA3 is part of the SINAMICS S120 product line. This ensures compatibility with other Siemens automation devices. It offers integrated safety functions for enhanced operational security.

How does the liquid cooling system on the 6SL3725-1TE35-0AA3 work?

Liquid coolant circulates through the module to dissipate heat. This efficient thermal management allows for higher power output. It prevents overheating during continuous heavy-duty operation.

The system requires a separate cooling circuit and pump. Regular maintenance of the coolant and flow is essential. This ensures optimal heat transfer and module longevity.

Liquid cooling provides superior thermal performance compared to air cooling. It enables a more compact design for a given power rating. This is crucial for space-constrained industrial installations.

What type of motors can be connected to the SIEMENS 6SL3725-1TE35-0AA3?

This module is designed for standard industrial AC motors. It supports both synchronous and asynchronous motor types. The motor must match the power and voltage specifications.

Accurate motor data must be entered during commissioning. This allows the SINAMICS S120 to optimize control performance. It ensures efficient and safe operation of the connected motor.

The module offers flexible configuration for various motor characteristics. It can handle high dynamic requirements and precise positioning tasks. Always consult the manual for compatibility details.

What are the main benefits of using a SINAMICS S120 drive system?

SINAMICS S120 drives offer precise motion control and high efficiency. They reduce energy consumption and operational costs. The system provides advanced diagnostics for quick troubleshooting.

They feature integrated safety functions, like STO. This enhances machine safety and reduces external component needs. Seamless integration with TIA Portal simplifies engineering.

The modular design allows for scalability and future expansion. It supports advanced communication protocols for network integration. This makes it ideal for Industry 4.0 applications.

What is required for the installation of the 6SL3725-1TE35-0AA3?

Proper electrical grounding and power supply connections are vital. A compatible Siemens Control Unit (e.g., CU320-2) is needed. The liquid cooling circuit must be installed correctly.

Ensure adequate space for maintenance and air circulation around the cabinet. Follow all local electrical codes and safety standards. Refer to the installation manual for detailed instructions.

The unit requires a stable 400V power source. The control system wiring and communication setup are also critical. Professional installation is recommended for complex systems.

How do I commission the SIEMENS 6SL3725-1TE35-0AA3?

Commissioning is typically done using Siemens STARTER software. Parameterize the motor data and control settings accurately. Configure communication interfaces and safety functions.

Perform initial startup tests to verify operation. Check for any fault messages and resolve them promptly. Proper commissioning ensures optimal performance and safety.

The TIA Portal can also be used for integrated engineering. This simplifies the configuration of the entire automation system. Consult the commissioning manual for specific steps.

What safety features are integrated into this module?

The module features Safe Torque Off (STO). This is a fundamental safety function that prevents unintended motor movement. It can be activated via external safety devices.

Other integrated safety functions may be available depending on the Control Unit. These can include Safe Stop 1 (SS1) and Safely Limited Speed (SLS). These functions enhance machine safety compliance.

Always ensure safety functions are correctly configured and tested. Proper implementation of safety features is crucial for protecting personnel. Adhere to relevant safety standards like ISO 13849-1.

What kind of maintenance is required for the 6SL3725-1TE35-0AA3?

Regular inspection of the liquid cooling system is essential. Monitor coolant levels, temperature, and flow rates. Check for any leaks in the piping.

Periodically inspect electrical connections for tightness and signs of corrosion. Ensure cabinet ventilation is unobstructed. Perform software updates for the control unit as needed.

Diagnostic data from the drive system should be reviewed. This can help identify potential issues before they cause downtime. Follow the recommended maintenance schedule from Siemens.

How does this module contribute to energy efficiency?

The SINAMICS S120 platform is designed for high energy efficiency. It uses advanced control algorithms to minimize energy losses. The ability to precisely control motor speed reduces power consumption.

Regenerative feedback capabilities can capture energy. This energy can be fed back into the grid or used by other loads. This significantly improves the overall energy balance of the system.

The precise control also optimizes process efficiency. This indirectly leads to energy savings by reducing waste and improving throughput. Its performance characteristics contribute to overall operational cost reduction.

What are the typical fault codes associated with this drive?

Common fault codes relate to overcurrent (e.g., F07001), overvoltage (e.g., F07002), and undervoltage (e.g., F07003). Thermal overload faults (e.g., F07012) are also frequent. Communication errors between the control unit and motor module can occur.

Other codes might indicate motor issues, like short circuits or earth faults (e.g., F07004). Sensor errors, such as temperature or encoder faults, can also trigger specific alarms. The exact code depends on the specific error detected.

Referencing the SINAMICS S120 fault code list is crucial. This documentation provides detailed explanations and troubleshooting steps for each code. Correctly interpreting these codes is key to rapid problem resolution.