SIEMENS 6SL3720-1TG41-3AA3 SINAMICS S120 Single Motor Module with CIM for CU320-2 1200kW 1270A Ultra High Capacity 690V

The SIEMENS 6SL3720-1TG41-3AA3 SINAMICS S120 Single Motor Module is an ultra-high capacity drive solution engineered for demanding industrial applications. This module delivers exceptional performance with its 1200kW power output, 1270A continuous current rating, and operation at 690V. Its integrated Control Interface Module (CIM) facilitates seamless communication with the CU320-2 control unit, enabling advanced motion control functionalities. This combination offers robust, reliable, and efficient power conversion for heavy-duty machinery, setting a benchmark for high-power motor control in the industry.

Product Specifications

| Parameter              | Value                 |

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

| Product Number         | 6SL3720-1TG41-3AA3    |

| Product Family         | SINAMICS S120         |

| Module Type            | Single Motor Module   |

| Power Rating           | 1200 kW               |

| Continuous Current     | 1270 A                |

| Voltage                | 690 V                 |

| Control Unit Interface | CIM for CU320-2       |

Core Features & Market Positioning

The SINAMICS S120 portfolio, exemplified by the 6SL3720-1TG41-3AA3, is positioned as a premium, high-performance drive system for critical industrial processes. Its core strength lies in its ability to handle extremely high power demands with remarkable precision and efficiency. Siemens' advanced control algorithms, integrated within the S120 platform, provide superior dynamic response and torque control, crucial for applications like rolling mills, extruders, and large material handling systems. The module's robust design and high overload capacity ensure reliability even under the most strenuous operating conditions, differentiating it from lower-capacity drives. The inclusion of a CIM for the CU320-2 control unit signifies a fully integrated solution ready for complex automation tasks and advanced diagnostics.

Key Application Scenarios

This ultra-high capacity SINAMICS S120 module is ideally suited for heavy industries where immense motor power is a prerequisite. Common applications include the direct drive of large pumps and compressors in chemical plants and oil and gas facilities, where precise speed and torque regulation are vital for process stability. In metal processing, it excels in driving rolling mills and large extruders, managing the significant inertia and torque fluctuations inherent in these operations. Furthermore, its capacity makes it suitable for large-scale material handling systems, such as those found in mining and large port operations, and for powering high-capacity fans and blowers in critical infrastructure.

Practical System Integration Guidance

Integrating the SIEMENS 6SL3720-1TG41-3AA3 into a larger automation system requires careful planning, particularly concerning power supply and cooling. The module's high power consumption necessitates robust power infrastructure, including appropriately sized switchgear and cabling, rated for 690V and the significant current demands. Connection to the CU320-2 control unit via the CIM is a standard procedure within the SINAMICS S120 architecture, utilizing dedicated interface cables. Parameterization is typically performed using Siemens' TIA Portal software, where motor data, control modes (e.g., V/f, vector control), and safety functions are configured. Proper shielding of motor and encoder cables is essential to prevent electromagnetic interference in such high-power applications.

Operation and Risk Mitigation

Safe and efficient operation of the SIEMENS 6SL3720-1TG41-3AA3 hinges on adherence to operational guidelines and proactive risk mitigation. Before initial energization, verify all connections, ensure proper grounding, and confirm that the power supply voltage and frequency match the module's specifications. Environmental conditions, such as ambient temperature and humidity, must be within the specified operating limits to prevent overheating and component failure. Regular diagnostic checks via the CU320-2 interface can help identify potential issues before they lead to downtime. Common fault codes relate to overcurrent, overvoltage, or thermal overload, and troubleshooting involves consulting the SINAMICS S120 system manuals for specific error code explanations and corrective actions.

Scalability & Long-Term Value

The SINAMICS S120 platform, including the 6SL3720-1TG41-3AA3, offers significant long-term value through its inherent scalability and compatibility. Its modular design allows for expansion and integration with other SINAMICS drives and Siemens automation components within the TIA Portal ecosystem. This ensures that systems can evolve to meet changing production demands or incorporate new functionalities. For users focused on Industry 4.0 initiatives, the S120's advanced communication capabilities enable seamless integration with IIoT platforms for predictive maintenance, remote monitoring, and optimized performance analysis. The robust build quality and Siemens' commitment to ongoing software updates further enhance the long-term return on investment.

FAQs

1. What are the primary benefits of using the SIEMENS 6SL3720-1TG41-3AA3?

This module offers unparalleled power handling for extreme industrial needs. It ensures precise motor control, boosting process efficiency and product quality. Its robust design guarantees high reliability in demanding environments.

The integrated CIM simplifies communication with advanced control units. This drive solution provides excellent energy efficiency for large motor applications. Its advanced diagnostics aid in proactive maintenance.

The ultra-high capacity rating of 1200kW and 1270A at 690V makes it ideal for the most challenging machinery. It represents a significant investment in operational uptime and performance.

2. Can the 6SL3720-1TG41-3AA3 be used with different types of motors?

Yes, the SINAMICS S120 platform supports a wide range of motor types. It is highly versatile and can be configured for induction motors and synchronous motors.

The module's advanced control algorithms enable optimal performance with various motor technologies. Proper parameterization in TIA Portal is key to maximizing motor efficiency.

Users can leverage different control modes, such as V/f control or vector control, depending on the motor and application requirements. This ensures adaptability across diverse industrial setups.

3. What are the typical installation considerations for this high-capacity drive?

Adequate ventilation and cooling are critical due to the module's substantial heat dissipation. Ensure sufficient space around the drive for airflow and maintenance access.

Robust power supply infrastructure is mandatory, including correctly sized circuit breakers, cabling, and grounding. Compliance with local electrical codes is essential.

Proper shielding of control and motor cables is necessary to mitigate electromagnetic interference in high-power environments. Consider filtered power outputs for sensitive equipment.

4. How does the CIM feature of the 6SL3720-1TG41-3AA3 enhance system integration?

The CIM acts as the crucial interface between the power module and the CU320-2 control unit. It ensures seamless data exchange for coordinated motion control.

This integrated communication simplifies wiring and reduces potential points of failure in complex automation setups. It enables sophisticated diagnostics and parameter access.

The CIM facilitates the implementation of advanced control strategies and safety functions managed by the CU320-2. This leads to more intelligent and responsive machine operation.

5. What safety features are incorporated into the SIEMENS 6SL3720-1TG41-3AA3?

The module incorporates essential safety functions such as Safe Torque Off (STO). This is a fundamental safety requirement for emergency stops.

Additional integrated safety features can be activated and configured via the CU320-2 control unit. These may include safe stop functions and monitoring.

Adherence to the relevant IEC 61508 or ISO 13849 safety standards is paramount during system design and operation. Always consult the product manual for a complete list.

6. What is the role of the CU320-2 control unit in conjunction with this module?

The CU320-2 serves as the intelligent brain, executing motion control algorithms and coordinating drive functions. It communicates with higher-level automation systems.

It processes feedback from the motor and sensors, adjusting drive parameters in real-time for optimal performance. This unit manages complex motion profiles.

Through the CIM, the CU320-2 configures, monitors, and diagnoses the 6SL3720-1TG41-3AA3, enabling advanced operational control and safety. It provides the user interface for parameterization.

7. What types of industrial environments are best suited for this SINAMICS S120 module?

This module is engineered for harsh industrial settings like heavy manufacturing and processing plants. It excels in environments with high power demands.

It is well-suited for applications in mining, metals, and chemicals where robust equipment is essential. Its high capacity handles the most demanding operational loads.

The drive's design ensures reliable operation even under challenging ambient conditions, provided environmental limits are respected. Its enclosure rating should be considered for dusty or humid areas.

8. How can I troubleshoot common issues with the SIEMENS 6SL3720-1TG41-3AA3?

Begin by checking the fault codes displayed on the CU320-2 control unit or via connected HMI. These codes provide specific diagnostic information.

Review motor and power supply connections for any loose wires or incorrect wiring configurations. Ensure the motor is properly insulated and grounded.

Consult the SINAMICS S120 system manuals for detailed troubleshooting guides corresponding to specific error codes. Often, resetting parameters or verifying motor data resolves issues.

9. What are the power and current ratings of the 6SL3720-1TG41-3AA3?

The SIEMENS 6SL3720-1TG41-3AA3 has a substantial power rating of 1200 kW. This designation highlights its capacity for extremely demanding applications.

Its continuous current handling capability is rated at 1270 Amps. This high current rating is essential for driving large motors under continuous load.

The operational voltage for this module is 690 Volts AC, enabling it to efficiently power high-demand industrial machinery. It is designed for significant power conversion.

10. Is this module compatible with Industry 4.0 and IIoT initiatives?

Yes, the SINAMICS S120 platform is designed with Industry 4.0 integration in mind. It supports advanced communication protocols for data exchange.

The module can seamlessly connect to IIoT platforms for real-time monitoring, performance analysis, and predictive maintenance. This facilitates optimized operational efficiency.

Leveraging its Ethernet/IP or Profinet connectivity, the 6SL3720-1TG41-3AA3 enables smart manufacturing by providing critical operational data for analysis and control. This enhances overall system intelligence.