SIEMENS 6SL3730-7TG37-4BA3 SINAMICS S120 Cabinet ALM including AIM 800kW 735A Regulated Supply Module 690V Line

The SIEMENS 6SL3730-7TG37-4BA3 SINAMICS S120 Cabinet ALM, featuring an AIM 800kW 735A Regulated Supply Module for 690V line operation, stands as a robust and sophisticated solution for demanding industrial automation applications. This drive system excels in providing highly dynamic and precise motion control, essential for optimizing production processes and enhancing equipment performance. Its core advantages lie in its integrated design, advanced control capabilities, and exceptional power handling. Key technical parameters include an 800kW power rating, a 735A continuous current, and 690V line voltage compatibility, all housed within a robust cabinet structure for straightforward installation and reliable operation. The SINAMICS S120 platform is renowned for its technological superiority, offering seamless integration and high efficiency across a wide spectrum of industrial environments.

Product Specifications

| Parameter                     | Value                                               |

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

| Product Number                | 6SL3730-7TG37-4BA3                                  |

| Product Family                | SINAMICS S120 Cabinet ALM                           |

| Power Rating                  | 800 kW                                              |

| Continuous Current            | 735 A                                               |

| Line Voltage                  | 690 V                                               |

| Supply Module Type            | AIM (Active Infeed Module) Regulated                |

| Enclosure Type                | Cabinet                                             |

| Control Type                  | Vector Control, Servo Control                       |

| Communication Interfaces      | PROFIBUS DP, PROFINET, EtherNet/IP (optional)       |

| Protection Class              | IP20 (standard)                                     |

| Operating Temperature Range   | 0°C to +45°C (standard)                             |

| Dimensions (H x W x D)        | Varies by cabinet configuration (refer to datasheet) |

| Weight                        | Varies by cabinet configuration (refer to datasheet) |

Core Features & Market Positioning

The SIEMENS 6SL3730-7TG37-4BA3 SINAMICS S120 Cabinet ALM distinguishes itself through its Active Infeed Module (AIM) technology, which ensures a low-harmonic, unity power factor operation, thereby reducing energy consumption and improving overall grid compatibility. This advanced feature positions it as a premium, energy-efficient solution in sectors where power quality and cost optimization are paramount. Its robust cabinet design facilitates a compact and integrated installation, reducing footprint and simplifying wiring, a significant advantage over modular, field-assembled systems. The inherent flexibility of the SINAMICS S120 platform allows for seamless integration with various motor types, including synchronous and asynchronous motors, and supports advanced control modes for highly dynamic applications, making it a versatile choice for complex machinery.

Key Application Scenarios

This high-power SINAMICS S120 variant is engineered for arduous industrial tasks requiring substantial torque and precise speed control. It finds extensive use in heavy industries such as metal processing, such as rolling mills and presses, where large loads and dynamic acceleration/deceleration are common. Furthermore, its suitability extends to critical applications in the paper and printing industry, particularly in large web handling systems, and in the oil and gas sector for applications like drilling rigs and pump drives. The 690V operating voltage makes it ideal for power-intensive operations that benefit from reduced current for a given power level, leading to smaller cable cross-sections and improved system efficiency.

Practical System Integration Guidance

Integrating the SIEMENS 6SL3730-7TG37-4BA3 SINAMICS S120 Cabinet ALM requires careful planning, particularly regarding power supply and motor connections. The cabinet typically arrives pre-wired for main power and communication, but specific connections to the motor and any auxiliary components, such as braking resistors, must adhere strictly to the Siemens installation guidelines. For commissioning, using the Siemens STARTER commissioning software is essential. This software allows for parameterization of the drive, motor identification, and diagnostic functions. Establishing communication via PROFINET or PROFIBUS is crucial for enabling control commands and feedback loops, typically involving connecting the drive's communication port to the plant's control network. Proper grounding and shielding of all cables are imperative to mitigate electromagnetic interference (EMI) and ensure reliable operation.

Operation and Risk Mitigation

Safe and efficient operation of the SIEMENS 6SL3730-7TG37-4BA3 SINAMICS S120 Cabinet ALM relies on adherence to operational procedures and proactive risk mitigation. Before energizing the system, ensure all safety interlocks are functional and that personnel are trained on emergency stop procedures. Regular checks of motor temperatures, drive status via the control panel or software, and the integrity of cooling systems are vital. Common fault codes, such as F7001 (DC link voltage too high) or F7002 (DC link voltage too low), often indicate issues with the power supply or regenerative energy handling, while motor-related faults (e.g., F7010) may point to motor connection problems or overloads. Addressing these promptly through the STARTER software or the drive's control panel will prevent potential damage and downtime.

Scalability & Long-Term Value

The SINAMICS S120 platform, including the 6SL3730-7TG37-4BA3 variant, offers significant scalability and long-term value by being part of Siemens' integrated automation ecosystem. The modular nature of the SINAMICS S120 allows for expansion by adding further drive units or control modules, enabling system upgrades to meet evolving production demands. Compatibility with Siemens' TIA Portal (Totally Integrated Automation) ensures seamless integration with PLCs (like SIMATIC S7), HMIs, and other automation components, facilitating the development of comprehensive and intelligent automation solutions. Furthermore, its robust design and ongoing Siemens support contribute to a long operational lifespan, minimizing total cost of ownership. Its capability to integrate with IIoT platforms through standard industrial protocols allows for advanced diagnostics, predictive maintenance, and data-driven optimization.

FAQs

What are the primary benefits of the Siemens SINAMICS S120 Cabinet ALM?

It offers superior energy efficiency through Active Infeed Module technology, reducing harmonic distortion and improving power factor.

The integrated cabinet design simplifies installation, saves space, and enhances reliability by protecting components from the environment.

Its advanced control capabilities provide precise motion control, dynamic performance, and flexibility for various motor types and applications.

How do I connect a motor to the SIEMENS 6SL3730-7TG37-4BA3?

Ensure the motor is compatible with the drive's power and voltage ratings (690V, 800kW).

Wire the motor's power leads (U, V, W) and ground connection to the corresponding terminals on the drive's output.

Perform motor identification via the STARTER commissioning software to optimize drive parameters for the specific motor.

What is the role of the AIM module in this SINAMICS S120 drive?

The Active Infeed Module (AIM) actively controls the energy flow to and from the power supply.

It ensures a sinusoidal current draw from the line, minimizing harmonic pollution and improving power quality.

AIM also facilitates regenerative operation, feeding energy back to the grid during braking, which increases overall system efficiency.

Can this drive be used with different types of motors?

Yes, the SINAMICS S120 platform supports both synchronous and asynchronous motors.

It offers advanced control modes like vector control for precise speed and torque regulation with induction motors.

For synchronous motors, servo control functions provide extremely high dynamic performance and positioning accuracy.

What are common troubleshooting steps for error codes on this drive?

First, consult the Siemens documentation for the specific error code's meaning and recommended actions.

Utilize the STARTER commissioning software to analyze drive status, parameters, and event logs for clues.

Check external factors like power supply quality, motor connections, and any connected peripherals like braking resistors.

How do I ensure safe operation when commissioning this high-power drive?

Always follow the official Siemens installation and commissioning manual meticulously.

Ensure all safety circuits, emergency stops, and interlocks are properly installed and tested before power-up.

Verify that personnel are adequately trained on the equipment and emergency procedures.

What communication protocols are supported by this SINAMICS S120 drive?

It natively supports PROFIBUS DP and PROFINET for industrial fieldbus communication.

Optional communication modules can be added to support other protocols like EtherNet/IP, DeviceNet, or CANopen.

These protocols enable seamless integration into automated control systems for data exchange and remote control.

What is the typical ambient operating temperature range for this cabinet drive?

The standard operating temperature range for the SINAMICS S120 cabinet is typically from 0°C to +45°C.

Exceeding this range can lead to derating of the drive's performance or potential component damage.

Ensure adequate ventilation and cooling within the control cabinet to maintain optimal operating conditions.

How can this drive contribute to IIoT integration and smart factory initiatives?

It can transmit operational data (speed, torque, temperature, status) over industrial networks to SCADA or MES systems.

This data enables advanced monitoring, performance analysis, and predictive maintenance strategies.

The drive's diagnostic capabilities and remote access features support the development of smart, connected manufacturing environments.

What are the advantages of the 690V line voltage for this industrial application?

A higher line voltage reduces the current required for a given power output, lowering I²R losses in cabling.

This allows for smaller conductor sizes, reducing installation costs and material usage.

It is often preferred in high-power industrial facilities where existing power distribution infrastructure utilizes higher voltage levels.