Siemens 6SL3210-1KE21-7AB1 G120 VFD with Integrated Standard Filter 16.5A 7.5kW

The Siemens 6SL3210-1KE21-7AB1 G120 VFD, a robust Variable Frequency Drive, offers a potent solution for precise motor control in demanding industrial environments. Its integrated standard filter significantly enhances performance and protects connected equipment, boasting a 16.5A current rating and a powerful 7.5kW motor capacity. This drive is engineered for efficiency, reliability, and ease of integration, making it a compelling choice for a wide array of automation tasks.

Product Specifications

| Feature             | Specification                 |

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

| Model Number        | 6SL3210-1KE21-7AB1            |

| Series              | SINAMICS G120                 |

| Input Voltage       | 380-480 V AC                  |

| Output Current      | 16.5 A                        |

| Motor Power         | 7.5 kW (10 HP)                |

| Integrated Filter   | Standard Filter               |

| Protection Class    | IP20                          |

| Dimensions (H x W x D) | 305 x 156 x 178 mm            |

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

| Control Type        | Vector Control, V/f Control   |

Core Features & Market Positioning

The Siemens 6SL3210-1KE21-7AB1 distinguishes itself through its advanced control capabilities, offering both vector control for high-performance applications and V/f control for simpler setups, ensuring versatility across diverse motor types and load requirements. Its integrated standard filter is a key differentiator, simplifying installation by reducing the need for external components and ensuring compliance with electromagnetic compatibility (EMC) standards, thereby minimizing potential interference in complex electrical systems. Positioned as a reliable workhorse within the SINAMICS G120 series, this VFD is recognized for its robust construction and Siemens' commitment to quality, making it a preferred component for engineers prioritizing longevity and consistent performance.

Key Application Scenarios

This Siemens G120 VFD is exceptionally well-suited for applications requiring precise speed and torque control, such as conveyor systems, pumps, fans, and general machinery in manufacturing, processing, and material handling industries. Its 7.5kW power rating and 16.5A current capacity make it ideal for medium-duty industrial tasks where energy efficiency and smooth operation are paramount. Industries that frequently leverage the 6SL3210-1KE21-7AB1 include food and beverage processing, automotive manufacturing, and water treatment, benefiting from its ability to optimize energy consumption and extend equipment lifespan.

Practical System Integration Guidance

Integrating the Siemens 6SL3210-1KE21-7AB1 into existing control systems is streamlined by its modular design and comprehensive communication options, typically supporting PROFIBUS or PROFINET for seamless networking. Installation involves secure mounting in an appropriate enclosure to maintain its IP20 rating and ensure adequate ventilation, crucial for thermal management during operation. Commissioning typically requires parameterization via the operator panel or engineering software, where users can configure motor data, control modes, and safety functions to match specific application needs, ensuring optimal performance and protection.

Operation and Risk Mitigation

Safe operation of the Siemens 6SL3210-1KE21-7AB1 is ensured through its built-in safety functions, including safe torque off (STO), which provides reliable protection against unexpected motor start-ups. Adhering to the recommended operating temperature range of -20°C to +50°C and ensuring proper ventilation are critical for preventing overheating and premature component failure. Common troubleshooting scenarios often involve addressing parameter misconfigurations or motor-related faults; consulting the detailed user manual for specific error codes and their remedies is essential for efficient problem resolution.

Scalability & Long-Term Value

The SINAMICS G120 platform, to which the 6SL3210-1KE21-7AB1 belongs, offers inherent scalability, allowing for upgrades or expansion with additional modules as application demands evolve. Its compatibility with Siemens' broader automation portfolio, including PLCs and HMI devices, facilitates integration into sophisticated industrial control architectures and smart factory initiatives, enhancing long-term operational value. The drive's ability to support advanced control algorithms and connect to digital platforms for monitoring and diagnostics positions it as a valuable asset for businesses pursuing Industry 4.0 adoption and seeking to optimize asset performance.

Frequently Asked Questions

What are the main advantages of the Siemens 6SL3210-1KE21-7AB1?

This VFD offers precise motor control with both vector and V/f options. It features an integrated standard filter for EMC compliance and simplified installation. Its robust design ensures reliability in harsh industrial settings.

The 7.5kW power and 16.5A rating support a wide range of medium-duty applications efficiently. Siemens' established quality and support add significant long-term value for users.

Key benefits include enhanced energy savings through optimized motor operation. It also provides advanced safety features for operational security.

How do I connect the Siemens 6SL3210-1KE21-7AB1 to a motor?

Ensure the power supply is disconnected before wiring. Connect the motor leads (U, V, W) to the VFD's output terminals. Follow the wiring diagrams in the manual carefully for correct polarity.

Proper grounding of both the VFD and the motor is crucial for safety and performance. Verify all connections are secure to prevent issues during operation.

Utilize shielded motor cables for installations with significant electrical noise. Refer to the specific manual for recommended cable types and lengths.

What is the power rating of the Siemens 6SL3210-1KE21-7AB1?

The VFD is rated for a motor power output of 7.5 kilowatts. This is equivalent to approximately 10 horsepower for motor applications.

The maximum continuous output current capacity for this drive is 16.5 amperes. This rating dictates the size of the motor it can safely control.

Always ensure your motor's nameplate data falls within the drive's specified operating limits for optimal performance and longevity.

Can the Siemens 6SL3210-1KE21-7AB1 be used for pump applications?

Yes, this VFD is well-suited for pump control applications. Its precise speed regulation ensures efficient water flow and pressure management.

The drive's variable frequency output allows for smooth starting and stopping, reducing mechanical stress on pump systems. This extends the lifespan of pumps and associated piping.

Utilizing features like integrated PID control can further optimize pump operation for specific flow or pressure setpoints.

What is the input voltage for the Siemens 6SL3210-1KE21-7AB1?

The drive is designed to operate with an input voltage range of 380 to 480 Volts AC. This three-phase voltage is standard in many industrial facilities.

It is critical to ensure your local power supply is within this specified range before connecting the VFD. Incorrect voltage can lead to damage.

Confirm the voltage configuration (e.g., 400V, 480V) in your electrical system matches the drive's capabilities.

How do I set up parameters on the Siemens 6SL3210-1KE21-7AB1?

Parameter setup can be done using the VFD's built-in operator panel or via Siemens' TIA Portal software. The TIA Portal offers a more comprehensive engineering environment.

Key parameters to configure include motor data (rated power, voltage, current, speed), control mode (V/f or vector), and acceleration/deceleration ramps. Safety functions also require careful setup.

Always refer to the product manual for a detailed explanation of each parameter and its effect on operation. Incorrect parameterization can lead to poor performance or safety issues.

What does the integrated standard filter do?

The integrated filter helps to suppress electromagnetic interference (EMI) generated by the VFD. This ensures the drive meets EMC (Electromagnetic Compatibility) standards.

It also protects connected equipment and the power grid from harmonic distortion. This leads to cleaner power and more reliable system operation.

By integrating the filter, Siemens simplifies installation and reduces the need for external filtering components, saving space and cost.

What is the protection class of this VFD?

The Siemens 6SL3210-1KE21-7AB1 has an IP20 protection class rating. This means it is protected against solid objects larger than 12.5 mm.

However, IP20 protection does not safeguard against water ingress. Therefore, it must be installed in a clean, dry environment or within an enclosure offering adequate protection.

Proper installation, potentially within a control cabinet, is essential to maintain the intended level of protection and ensure safe operation.

How can I troubleshoot error code F001 on the Siemens 6SL3210-1KE21-7AB1?

Error F001 typically indicates an overcurrent fault. Check the motor load and ensure it does not exceed the VFD's rated capacity.

Inspect the motor windings for short circuits or grounding issues. Verify that the motor cables are correctly connected and undamaged.

Review all motor-related parameters in the VFD to confirm they accurately reflect the connected motor's specifications. Increase acceleration ramps if the motor is starting under heavy load.

Is the Siemens 6SL3210-1KE21-7AB1 compatible with Siemens S7 PLCs?

Yes, the SINAMICS G120 series, including this model, is designed for seamless integration with Siemens S7 PLCs. Communication is typically achieved via PROFIBUS or PROFINET.

This compatibility allows for centralized control and monitoring of the VFD within a larger automation system. Engineering software like TIA Portal facilitates easy configuration and data exchange.

Utilizing this integration leverages Siemens' comprehensive automation ecosystem for robust and efficient industrial solutions.