SIEMENS 6SL3720-1TG37-4AA3 SINAMICS S120 Single Motor Module with CIM for CU320-2 710kW 735A System Component 690V

The SIEMENS 6SL3720-1TG37-4AA3 SINAMICS S120 Single Motor Module with CIM for CU320-2 stands as a robust solution for demanding industrial automation applications. This module offers significant advantages, including high power density, exceptional control precision, and seamless integration within the SINAMICS S120 drive system. Its core features revolve around its advanced control capabilities for single-motor applications up to 710kW, operating at a system voltage of 690V and delivering a continuous current of 735A. This unit is specifically designed as a system component for the CU320-2 control unit, ensuring unified and efficient drive management.

Product Specifications

| Parameter                 | Value                                                    |

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

| Product Number            | 6SL3720-1TG37-4AA3                                       |

| Series                    | SINAMICS S120                                            |

| Type                      | Single Motor Module with CIM for CU320-2                 |

| Motor Power               | 710 kW                                                   |

| Continuous Current        | 735 A                                                    |

| System Voltage            | 690 V                                                    |

| Control Unit Compatibility | CU320-2                                                  |

| Manufacturer              | Siemens                                                  |

| Product Category          | Drive System Component                                   |

Core Features & Market Positioning

The SIEMENS 6SL3720-1TG37-4AA3 differentiates itself through its sophisticated vector control algorithms, enabling precise speed and torque regulation essential for high-performance machinery. Its integration with the CU320-2 control unit allows for advanced motion control functionalities and synchronized operation. Positioned as a high-power, high-performance drive component, it caters to industries requiring robust and reliable motor control solutions, such as heavy manufacturing, material handling, and process automation. The SINAMICS S120 platform is widely recognized for its flexibility and scalability, making this module a compelling choice for complex industrial setups.

Key Application Scenarios

This module is ideally suited for applications demanding significant power and precise control, including large-scale conveyor systems, heavy-duty mixers and agitators, extruders, and pump drives in critical industrial processes. Its 690V capability makes it particularly effective in environments where higher voltage systems are standard for efficient power distribution and reduced cabling losses. Industries such as mining, oil and gas, and large-scale chemical processing will find the SIEMENS 6SL3720-1TG37-4AA3 a crucial component for their demanding operational needs.

Practical System Integration Guidance

Integrating the SIEMENS 6SL3720-1TG37-4AA3 requires careful attention to its connection with the CU320-2 control unit via the DRIVE-CLiQ interface. Proper power cabling for the 690V system and motor connections is critical, adhering strictly to Siemens' electrical installation guidelines to ensure safety and performance. The module's parameters are configured through the control unit's engineering software, often STARTER or TIA Portal, allowing for detailed tuning of motor characteristics, control modes, and safety functions. For optimal integration, ensure the power supply is stable and within the specified tolerances for the 690V rating.

Operation and Risk Mitigation

Safe operation of the SIEMENS 6SL3720-1TG37-4AA3 hinges on strict adherence to the operational manual and relevant safety standards. Proper grounding, emergency stop integration, and ensuring that the module's thermal management is adequate for the ambient conditions are paramount to prevent overheating and potential damage. Common troubleshooting may involve checking for fault codes displayed on the CU320-2, which often indicate motor connection issues, overcurrent conditions, or communication errors. Promptly addressing these through parameter adjustments or hardware checks can mitigate downtime.

Scalability & Long-Term Value

The SINAMICS S120 platform, and by extension the 6SL3720-1TG37-4AA3, offers excellent scalability. Its modular design allows for the integration of additional drives or expansion modules to accommodate growing production demands or more complex automation architectures. Compatibility with Siemens' broader automation portfolio, including PLCs and HMI systems, facilitates seamless integration into Industrial Internet of Things (IIoT) environments for advanced diagnostics, predictive maintenance, and remote monitoring, thereby enhancing long-term operational value and future-proofing investments.

FAQs

What is the primary function of the SIEMENS 6SL3720-1TG37-4AA3?

This module serves as a high-power single motor drive controller. It precisely manages motor speed and torque for demanding industrial applications.

It is a key component designed to work with the CU320-2 control unit in the SINAMICS S120 drive system. The module enables advanced motor control features and system integration.

Its core purpose is to provide reliable and efficient power conversion and control for large electric motors operating at 690V.

What are the main advantages of using the SINAMICS S120 platform?

The SINAMICS S120 offers superior control accuracy and dynamic response for motors. It supports various control modes, including vector control, for optimal performance.

Its modularity allows for flexible system design and easy expansion to meet changing industrial needs. This reduces engineering effort and future upgrade costs.

The platform is known for its high energy efficiency and comprehensive safety integrated functions. This contributes to lower operating costs and enhanced operational safety.

What kind of motors can be connected to the 6SL3720-1TG37-4AA3 module?

This module is designed for synchronous and asynchronous motors requiring high power and precise control. It's capable of driving motors up to 710kW.

It is optimized for motors that operate within a 690V system voltage and can handle continuous currents up to 735A.

The module's advanced control algorithms ensure efficient operation regardless of motor type, provided they fall within the specified power and voltage ratings.

How does the CIM (Control Interface Module) function in this setup?

The CIM facilitates communication between the motor module and the CU320-2 control unit. It enables data exchange for precise control commands.

It is essential for integrating the motor module into the broader SINAMICS S120 drive system and ensuring coherent operation with other system components.

The CIM plays a role in relaying diagnostic information and status updates from the motor module to the control unit for monitoring and troubleshooting.

What are the typical industries that utilize the SIEMENS 6SL3720-1TG37-4AA3?

Heavy manufacturing sectors heavily rely on such powerful drive modules. This includes applications in metal processing and large-scale machinery.

The mining and oil & gas industries benefit from its robust performance in harsh environments and high-power requirements. It's crucial for excavators and pumps.

Process industries, such as chemical plants and water treatment, employ these modules for driving large pumps, fans, and mixers where reliability is key.

What is required for the electrical installation of this module?

Proper grounding and shielding of power and motor cables are critical. Adherence to IEC standards and local electrical codes is mandatory.

Ensure the 690V power supply is stable and meets the module's specifications, including surge protection. Correct polarity and secure connections prevent electrical hazards.

Installation should be performed by qualified personnel following the manufacturer's guidelines, paying close attention to environmental conditions like temperature and humidity.

What are the safety considerations when operating this module?

Always integrate the module with a reliable emergency stop system. Ensure proper guarding of rotating machinery to prevent personnel injury.

Before maintenance, always ensure the module and connected motor are de-energized and discharged according to safety procedures. Lockout/tagout protocols are essential.

Familiarize yourself with all safety-related parameters and functions within the CU320-2 control unit, such as safe torque off (STO).

How can the SIEMENS 6SL3720-1TG37-4AA3 be integrated into an IIoT environment?

This module, when connected to a CU320-2 and a compatible PLC, can transmit operational data over industrial networks like PROFINET. This enables remote monitoring.

Integration with Siemens' MindSphere or other cloud platforms allows for advanced analytics, predictive maintenance, and process optimization. Data points include speed, current, and temperature.

Utilize the module's diagnostic capabilities and status signals, which can be mapped to a SCADA system or MES for comprehensive factory-wide data integration.

What are common troubleshooting steps for this module?

First, check the CU320-2 control unit for any displayed fault codes and consult the SINAMICS S120 fault list for their meaning. Common issues involve power supply or motor feedback.

Verify all physical connections, including power cables, motor connections, and communication cables (e.g., DRIVE-CLiQ), for integrity and correct placement.

Parameter settings in the control unit are crucial. Incorrect motor data, control mode selection, or tuning can lead to performance issues or faults. Review and reset if necessary.

Is the SIEMENS 6SL3720-1TG37-4AA3 backwards compatible with older Siemens drive systems?

This module is part of the SINAMICS S120 series, designed for modern automation architectures. Its primary compatibility is with the CU320-2 control unit.

While it can integrate with older systems via gateways or specific network configurations, it's not directly plug-and-play with significantly older drive families like SIMOVERT.

For full functionality and optimal performance, it is best integrated within the current SINAMICS S120 ecosystem. Compatibility checks are essential for mixed-system deployments.