Siemens 6SL3210-1KE18-8AF1 G120 VFD with Integrated Safety and Filter 8.8A 4kW

The Siemens 6SL3210-1KE18-8AF1 G120 VFD is a robust variable frequency drive designed for demanding industrial applications, offering integrated safety functions and an electromagnetic compatibility (EMC) filter for superior performance and protection. This unit boasts a 4kW power rating and an 8.8A continuous output current, ensuring reliable operation for a wide range of motor control needs. Its key advantages include enhanced operational safety through integrated Safe Torque Off (STO) functionality, reduced harmonic distortion due to the built-in filter, and flexible configuration options via the Siemens SINAMICS platform. Technical parameters include a 3-phase input voltage range of 380-480V AC, an output frequency of 0-600Hz, and an IP20 enclosure rating, making it suitable for cabinet installations.

Product Specifications

| Feature                  | Specification                               |

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

| Product Number           | 6SL3210-1KE18-8AF1                          |

| Series                   | SINAMICS G120                             |

| Rated Power              | 4 kW                                        |

| Continuous Output Current| 8.8 A                                       |

| Input Voltage            | 380-480V AC, 3-phase                        |

| Output Frequency         | 0-600 Hz                                    |

| Filter                   | Integrated EMC Filter                       |

| Safety Functionality     | Integrated Safe Torque Off (STO)            |

| Enclosure Rating         | IP20                                        |

| Ambient Temperature      | -20°C to +50°C                              |

Core Features & Market Positioning

The Siemens 6SL3210-1KE18-8AF1 distinguishes itself in the industrial automation market through its comprehensive integration of advanced features. The built-in EMC filter is a significant differentiator, simplifying installation by reducing the need for external filtering components and ensuring compliance with stringent electromagnetic compatibility standards. This not only saves space and cost but also enhances system reliability in environments prone to electrical noise. Furthermore, the integrated Safe Torque Off (STO) function is a critical safety feature, providing a reliable method to prevent unintended machine startup without requiring external safety relays for basic applications. This positions the G120 drive as a cost-effective and highly capable solution for applications where both performance and safety are paramount. Its compatibility with the broader SINAMICS ecosystem further solidifies its value proposition for users seeking integrated and scalable automation solutions.

Key Application Scenarios

The Siemens 6SL3210-1KE18-8AF1 is exceptionally well-suited for a variety of industrial applications where precise motor control, energy efficiency, and robust safety are essential. Common use cases include pump and fan control in HVAC systems, conveyor belts in material handling and logistics, and machine tools in manufacturing, where variable speed operation can optimize process efficiency and reduce wear. The integrated EMC filter is particularly beneficial in complex networked environments or in sensitive industries where electrical interference must be minimized. Its STO functionality makes it ideal for machinery that requires quick and safe shutdown procedures, such as packaging equipment or automated assembly lines. The 4kW power rating and 8.8A current capacity also make it a versatile choice for general-purpose industrial drives across sectors like food and beverage, automotive, and general manufacturing.

Practical System Integration Guidance

Integrating the Siemens 6SL3210-1KE18-8AF1 into an industrial control system involves careful attention to power, control, and safety wiring. For power connections, ensure the input terminals are correctly wired to the 3-phase AC power supply, adhering to local electrical codes and the drive's voltage ratings. The motor is connected to the output terminals, and it is crucial to use shielded motor cables to maintain the effectiveness of the integrated EMC filter and prevent noise propagation. Control wiring for digital and analog inputs/outputs, as well as communication interfaces (if applicable), should follow the terminal diagrams provided in the Siemens documentation. The STO safety circuit requires a dedicated connection to a safety control system or emergency stop button; proper grounding and shielding of these safety circuits are paramount for reliable fault detection and safe operation. Commissioning typically involves setting basic motor parameters, such as motor nameplate data, and configuring application-specific settings via the drive's control unit or through Siemens' TIA Portal software for more advanced parameterization and diagnostics.

Operation and Risk Mitigation

Operating the Siemens 6SL3210-1KE18-8AF1 effectively requires understanding its control modes and safety interlocks. The drive offers various operational modes, including V/f control and vector control, allowing optimization for different motor types and applications. Users should familiarize themselves with the drive's keypad or available control units for manual operation, speed adjustments, and monitoring of key parameters like output frequency, current, and voltage. Risk mitigation is primarily achieved through the STO function, which ensures the motor cannot generate torque when activated, thus preventing unexpected starts. Common troubleshooting involves monitoring fault codes displayed on the drive; for instance, an F0001 fault typically indicates an overcurrent condition, requiring investigation into motor load or acceleration ramps. An F0003 fault might point to an undervoltage issue, suggesting problems with the incoming power supply. Adhering to maintenance schedules and ensuring proper ventilation within the control cabinet will also help prevent operational issues and prolong the drive's lifespan.

Scalability & Long-Term Value

The Siemens SINAMICS G120 platform, including the 6SL3210-1KE18-8AF1, offers significant scalability and long-term value for industrial operations. Its modular design allows for the integration of various control units, communication modules (e.g., PROFINET, PROFIBUS), and braking modules, enabling users to adapt the drive to evolving application requirements or to expand system capabilities without replacing the entire unit. Compatibility with Siemens' TIA Portal (Totally Integrated Automation Portal) facilitates seamless integration with other Siemens automation components, such as PLCs and HMIs, creating a unified and efficient automation architecture. For businesses moving towards Industry 4.0 and the Industrial Internet of Things (IIoT), the SINAMICS G120 drives can be equipped with communication options that enable advanced data logging, remote diagnostics, and predictive maintenance capabilities, maximizing operational uptime and optimizing asset management over the long term.

FAQs

1. What are the primary benefits of the integrated EMC filter in the Siemens 6SL3210-1KE18-8AF1?

The integrated filter enhances system reliability by suppressing electromagnetic interference. It simplifies installation by eliminating the need for external filter components. Compliance with industrial EMC standards is achieved more easily.

2. How does the Safe Torque Off (STO) functionality of the 6SL3210-1KE18-8AF1 improve safety?

STO reliably prevents the motor from generating torque, ensuring it cannot move unexpectedly. This critical safety feature eliminates hazards during maintenance or emergency stops. It simplifies safety circuit design for many applications.

3. What types of industrial applications are best suited for the Siemens G120 6SL3210-1KE18-8AF1?

This VFD is ideal for pumps, fans, conveyors, and machine tools. Applications requiring variable speed, energy savings, and precise control benefit greatly. Environments needing reduced electrical noise are also a strong fit.

4. Can the 6SL3210-1KE18-8AF1 be controlled remotely or integrated into a larger automation system?

Yes, communication modules allow integration with PLCs via PROFINET or PROFIBUS. Remote monitoring and control are possible through these networks. This supports advanced automation and IIoT solutions.

5. What is the typical input voltage range for the Siemens 6SL3210-1KE18-8AF1 VFD?

The drive operates with a 3-phase AC input voltage. The specified range is 380-480 Volts. Always verify local power supply compatibility before installation.

6. What is the maximum output current and power rating of this SINAMICS G120 drive?

The continuous output current is rated at 8.8 Amperes. Its maximum power output is 4 Kilowatts. This ensures robust performance for specified motor sizes.

7. Does the Siemens 6SL3210-1KE18-8AF1 require specific motor cables for optimal performance?

Using shielded motor cables is highly recommended to maintain EMC performance. This prevents noise from affecting the drive or motor. Consult documentation for specific cable requirements.

8. What does an F0001 fault code typically indicate on the 6SL3210-1KE18-8AF1?

An F0001 fault usually signifies an overcurrent condition. This could be due to excessive motor load or rapid acceleration. Investigate the motor and application parameters.

9. What are the environmental operating limits for this G120 VFD?

The drive is designed for operation in ambient temperatures between -20°C and +50°C. It has an IP20 enclosure rating, suitable for clean, dry environments. Proper ventilation is crucial for extended life.

10. How does the modular design of the SINAMICS G120 platform add long-term value?

Modularity allows for future upgrades with different control or communication units. This flexibility adapts the drive to evolving system needs. It avoids the cost of replacing the entire drive.