SIEMENS 6SL3720-1TG38-8AA3 SINAMICS S120 Single Motor Module with CIM for CU320-2 900kW 910A Ultra Power 690V Line

The SIEMENS 6SL3720-1TG38-8AA3 SINAMICS S120 Single Motor Module is a high-performance drive solution engineered for demanding industrial applications. This Ultra Power module delivers 900kW of power and 910A of current at a 690V line voltage, featuring integrated Control Unit (CU320-2) communication interface (CIM). Its core advantages lie in its robust design, advanced control capabilities, and seamless integration within the SINAMICS S120 platform, offering exceptional precision and efficiency for motor control.

Product Specifications

| Feature              | Specification                                         |

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

| Product Number       | 6SL3720-1TG38-8AA3                                    |

| Series               | SINAMICS S120                                         |

| Type                 | Single Motor Module                                   |

| Power                | 900 kW                                                |

| Current Rating       | 910 A                                                 |

| Line Voltage         | 690 V                                                 |

| Control Unit Interface | CIM for CU320-2                                       |

| Application Class    | Ultra Power                                           |

Core Features & Market Positioning

The SINAMICS S120 platform is renowned for its modularity and scalability, and the 6SL3720-1TG38-8AA3 module exemplifies this by providing a powerful single-motor solution within a high-voltage framework. Its Ultra Power designation signifies its capability to handle extremely dynamic and high-torque applications, positioning it as a premium choice for heavy industry. The integrated CIM ensures efficient data exchange with the CU320-2 control unit, facilitating sophisticated drive functions and diagnostics. Siemens' established reputation for reliability and advanced drive technology underpins the market confidence in this product.

Key Application Scenarios

This SIEMENS 6SL3720-1TG38-8AA3 drive is ideally suited for applications requiring precise speed and torque control under severe operating conditions. Common scenarios include heavy-duty cranes, large rolling mills, extruders, large pumps and fans in process industries, and complex material handling systems where high power and dynamic response are paramount. Its 690V capability makes it suitable for installations with higher network voltages, often found in large industrial plants.

Practical System Integration Guidance

Integrating the SIEMENS 6SL3720-1TG38-8AA3 requires careful attention to power supply, motor connection, and control wiring. Proper grounding and shielding are critical for electromagnetic compatibility (EMC) and safe operation. Commissioning typically involves configuring parameters via SIMATIC commissioning tools or STARTER software, defining motor data, control modes, and safety functions. The CU320-2 control unit orchestrates the module's operation, with the CIM enabling seamless communication for advanced diagnostics and control loop optimization.

Operation and Risk Mitigation

Safe operation of the 6SL3720-1TG38-8AA3 module hinges on adhering to electrical safety standards and proper installation. Overload protection, overvoltage/undervoltage monitoring, and thermal monitoring are inherent safety features. Critical fault codes, such as those related to DC bus voltage, motor temperature, or communication errors, should be promptly addressed by consulting the SINAMICS S120 system manuals for detailed troubleshooting steps. Regular maintenance and system checks are crucial for preventing downtime and ensuring operational safety.

Scalability & Long-Term Value

The SINAMICS S120 platform's inherent modularity allows for significant scalability. The 6SL3720-1TG38-8AA3 module can be integrated into larger multi-axis systems controlled by advanced CU320-2 configurations. Its compatibility with broader Siemens automation portfolios, including SIMATIC PLCs and IIoT platforms, ensures long-term value and future-proofing. This drive is designed to support digitalization initiatives, enabling advanced data acquisition for predictive maintenance and process optimization.

Frequently Asked Questions

Q1: What is the primary function of the SIEMENS 6SL3720-1TG38-8AA3?

This drive module provides high-power motor control for demanding industrial applications. It enables precise regulation of speed and torque for large electric motors.

It is designed for heavy-duty operation, offering robust performance in challenging environments. Its 690V rating is suitable for higher voltage industrial power grids.

The module is part of the SINAMICS S120 family, known for its advanced control and connectivity features.

Q2: What are the key technical specifications of this SINAMICS S120 module?

The module has a power rating of 900 kW and a continuous current of 910 A. It operates on a 690 V AC line voltage.

It features an integrated CIM for communication with the CU320-2 Control Unit. This facilitates advanced drive functions.

The product number is 6SL3720-1TG38-8AA3 and it is classified under the Ultra Power application category.

Q3: In which industries is the 6SL3720-1TG38-8AA3 commonly used?

This drive is ideal for heavy industries like metal processing, mining, and material handling. Applications include large cranes, mills, and extruders.

It is also found in demanding process industries requiring precise control of large machinery. Think of large pumps, fans, and compressors.

Its high power and voltage capabilities make it suitable for installations with significant power demands.

Q4: What is the role of the CIM in this module?

The CIM (Control Interface Module) acts as the communication bridge between the motor module and the CU320-2 control unit. It ensures efficient data exchange.

It enables the transmission of control commands, status information, and diagnostic data. This is vital for system integration and monitoring.

With the CIM, the drive can leverage the full capabilities of the CU320-2 for complex control algorithms and network integration.

Q5: How does the "Ultra Power" designation benefit users?

"Ultra Power" signifies the module's capacity for extremely high torque and dynamic performance. It's built for the most demanding applications.

This designation ensures reliable operation under peak load conditions, preventing performance degradation. It offers superior dynamic response.

Users benefit from the ability to control high-inertia loads and achieve rapid acceleration/deceleration cycles.

Q6: What are the typical challenges during the installation and commissioning of this module?

Proper electrical installation, including correct wiring, grounding, and shielding, is crucial for safe and reliable operation. Ensuring adequate ventilation is also vital.

Commissioning involves detailed parameter configuration using Siemens software like STARTER. This includes motor data, control modes, and safety settings.

System integration with other automation components, like PLCs, requires careful planning of communication protocols and network setup.

Q7: What are some common fault codes associated with SINAMICS S120 modules?

Common fault codes often relate to overcurrent, overvoltage, undervoltage, or motor thermal issues. Communication faults can also occur.

Specific codes are detailed in the SINAMICS S120 system manuals, providing guidance for diagnosis. Examples include F07001 or F0001.

Understanding these codes is essential for prompt troubleshooting and minimizing downtime.

Q8: How can the SIEMENS 6SL3720-1TG38-8AA3 be integrated into a larger automation system?

This module integrates seamlessly with Siemens SIMATIC PLCs and other SINAMICS drives via industry-standard fieldbus systems. This allows for centralized control.

It supports various communication protocols like PROFINET or PROFIBUS, facilitating data exchange with higher-level control systems.

The CU320-2 control unit can manage multiple motor modules, enabling complex multi-axis coordinated movements.

Q9: What are the safety features integrated into this drive module?

The drive incorporates essential safety functions such as safe torque off (STO) and integrated safety functions via the CU320-2. These protect personnel and equipment.

It provides comprehensive monitoring for overvoltage, undervoltage, and motor thermal overload conditions.

Adherence to installation guidelines and safety standards is paramount for safe operation.

Q10: Does this module support IIoT and Industry 4.0 concepts?

Yes, SINAMICS S120 drives are designed for digital integration, enabling data logging for IIoT applications. This supports predictive maintenance.

They can communicate with cloud-based platforms and analytics tools for enhanced process visibility and optimization.

The modular design and connectivity options support the flexible and interconnected nature of Industry 4.0 solutions.