Siemens 6SL3210-1KE12-3UB2 G120 Series VFD Drive 2.2A 0.75kW

The Siemens 6SL3210-1KE12-3UB2, a Sinamics G120 series Variable Frequency Drive (VFD), delivers robust performance and flexibility for a wide array of industrial motor control applications. This compact yet powerful unit boasts a 0.75 kW (1 HP) output, a continuous current rating of 2.2A, and an input voltage range of 380-480V 3-phase, making it suitable for demanding environments. Its intelligent design emphasizes energy efficiency, precise control, and simplified integration, positioning it as a valuable asset for optimizing automation processes and reducing operational costs. Key advantages include its modular architecture, advanced safety functions, and seamless compatibility with Siemens' broader automation ecosystem.

Product Specifications

| Parameter             | Specification                                    |

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

| Product Series        | Siemens Sinamics G120                            |

| Article Number        | 6SL3210-1KE12-3UB2                               |

| Rated Power (kW)      | 0.75                                             |

| Rated Power (HP)      | 1                                                |

| Rated Current (A)     | 2.2                                              |

| Input Voltage (V)     | 380-480 (3-phase)                                |

| Output Frequency (Hz) | 0-550                                            |

| Protection Class      | IP20                                             |

| Dimensions (H x W x D)| 200 mm x 73 mm x 168 mm                            |

| Communication Ports   | Optional (e.g., Profibus, Profinet)              |

| Braking Unit          | Integrated (for suitable models/configurations)  |

Core Features & Market Positioning

The Siemens 6SL3210-1KE12-3UB2 distinguishes itself through its highly integrated and modular design, characteristic of the Sinamics G120 platform. This approach allows for significant customization, enabling users to select specific Control Units and Power Modules to precisely match application requirements, thereby avoiding over-specification and reducing costs. Its advanced vector control algorithms provide superior motor performance, characterized by high starting torque and precise speed regulation, even under fluctuating load conditions. The drive's robust construction and comprehensive diagnostic capabilities contribute to high reliability and reduced downtime, key factors in competitive industrial automation markets where operational efficiency is paramount. Furthermore, its energy-saving features, such as low-loss power modules and intelligent control modes, directly address the growing demand for sustainable and cost-effective industrial operations.

Key Application Scenarios

This Siemens G120 drive is exceptionally well-suited for a diverse range of industrial applications requiring precise motor control and high energy efficiency. It is commonly deployed in pump and fan control systems within HVAC and water management, where variable speed operation significantly reduces energy consumption. Manufacturing sectors benefit from its application in conveyor systems, material handling equipment, and general-purpose machinery, ensuring smooth product flow and accurate process timing. The drive's adaptability also extends to specialized applications like textile machinery, packaging equipment, and printing presses, where nuanced speed and torque control are critical for product quality and throughput. Its ability to integrate with higher-level control systems makes it a foundational component in modern automated production lines.

Practical System Integration Guidance

Integrating the Siemens 6SL3210-1KE12-3UB2 into an existing automation system is streamlined by its modularity and Siemens' established TIA Portal engineering framework. For basic installations, ensure correct wiring of power and motor connections, adhering strictly to the voltage and current ratings specified. Utilize the integrated braking resistor for applications with frequent stopping or overhauling loads to prevent overvoltage. Commissioning typically involves parameterizing the drive via the Basic Operator Panel (BOP) or the more advanced Intelligent Operator Panel (IOP), or through the TIA Portal software for advanced configuration and network integration. Careful attention to grounding and shielding is crucial for electromagnetic compatibility (EMC) in industrial environments, preventing signal interference and ensuring reliable operation.

Operation and Risk Mitigation

Safe and efficient operation of the Siemens 6SL3210-1KE12-3UB2 relies on adherence to established safety protocols and understanding its operational parameters. Always ensure that the drive is properly grounded and that all safety interlocks are functional before energizing the system. During operation, monitor drive temperatures and motor load to prevent overheating, utilizing the drive's built-in thermal protection features. Common fault codes, such as F0001 (Overcurrent) or F0002 (Overvoltage), typically indicate issues with motor load, wiring, or regenerative energy. Referencing the drive's manual for specific fault code meanings and troubleshooting steps is essential for rapid resolution and minimizing production interruptions. Employing appropriate braking strategies, such as dynamic braking or DC injection braking, can mitigate risks associated with rapid stops.

Scalability & Long-Term Value

The Sinamics G120 platform, including the 6SL3210-1KE12-3UB2, offers significant long-term value through its inherent scalability and compatibility with future technological advancements. Its modular design allows for straightforward upgrades or replacements of individual components, such as Control Units or communication modules, without needing to replace the entire drive. This flexibility supports evolving application requirements and technological obsolescence mitigation. Integration with Siemens' Industrial Internet of Things (IIoT) solutions and the TIA Digital Industry platform enhances predictive maintenance capabilities, remote monitoring, and data analytics, providing deeper insights into machine performance and enabling proactive interventions. This forward-thinking design ensures that the Siemens G120 remains a relevant and valuable investment throughout its operational lifecycle.

FAQs

What are the primary benefits of using the Siemens 6SL3210-1KE12-3UB2?

This VFD offers superior energy efficiency, precise motor control for demanding tasks. It provides enhanced operational reliability and reduced maintenance needs.

The modular design allows for application-specific customization and easy upgrades. Its integration capabilities simplify connection to automation systems.

It delivers precise speed and torque regulation, improving process quality and throughput. The robust construction ensures longevity in harsh industrial settings.

How does the 6SL3210-1KE12-3UB2 handle motor overload conditions?

The drive features advanced electronic thermal overload protection, monitoring motor current. It can provide warnings or trip the motor to prevent damage.

Integrated safety functions and parameter settings allow for configurable responses to overload. This includes ramp-down or immediate shutdown based on severity.

For sustained high loads, consider using a larger frame size or an external braking unit. Always consult the manual for specific overload settings.

Can the Siemens 6SL3210-1KE12-3UB2 be used with single-phase motors?

No, this G120 drive is designed for three-phase motor applications only. It requires a three-phase power supply for operation.

Using a single-phase motor with this drive is not recommended and could lead to damage. Ensure your motor type matches the drive's specifications.

Verify your motor's nameplate for three-phase compatibility before connecting. Single-phase motor applications require different VFD solutions.

What communication protocols does the 6SL3210-1KE12-3UB2 support?

The drive supports various communication protocols through optional communication modules. Common options include PROFIBUS DP and PROFINET.

These modules enable seamless integration into industrial networks for remote control and monitoring. This is crucial for automated factory environments.

Always select the appropriate communication module based on your existing network infrastructure. Refer to Siemens documentation for module compatibility.

What is the recommended operating temperature range for this VFD?

The Siemens 6SL3210-1KE12-3UB2 typically operates within an ambient temperature range of -20°C to +50°C. Consult the manual for exact limits.

Ensure adequate ventilation around the drive to maintain optimal operating temperatures. Overheating can lead to reduced performance or premature failure.

For extreme temperatures, consider specific environmental enclosures or de-rating the drive's output capacity. Proper installation is key.

How do I perform a motor auto-tuning procedure with this drive?

Motor auto-tuning calibrates the drive to the specific motor characteristics. Access the parameter menu and select the auto-tuning function.

Ensure the motor is disconnected from any mechanical load before starting the tuning process. The drive will then perform a series of tests.

Follow the on-screen prompts or TIA Portal guidance for successful auto-tuning. This optimizes drive performance and motor efficiency.

What types of safety functions are integrated into the G120 series?

The G120 series offers integrated safety functions like Safe Torque Off (STO). This prevents unintentional motor startup for enhanced personnel safety.

Other potential safety features include Safe Stop 1 (SS1) and Safe Direction (SDI). These can be configured via specialized safety Control Units.

Always implement safety functions in accordance with relevant machine safety standards. Verify the functionality through rigorous testing.

What is the power rating of the Siemens 6SL3210-1KE12-3UB2?

This specific VFD has a rated power output of 0.75 kW, equivalent to 1 HP. It's suitable for motors within this power range.

The drive's current rating is 2.2 Amperes, defining its continuous load capacity. Ensure your motor's full load current does not exceed this value.

For motors with higher power or current requirements, a different Sinamics G120 model would be necessary. Always match the drive to the motor.

How do I connect external components to the 6SL3210-1KE12-3UB2?

External components connect via the drive's terminal blocks for digital and analog I/O. Refer to the wiring diagrams in the product manual for proper connections.

Control signals, sensor inputs, and outputs can be configured through drive parameters. This allows for flexible integration with PLCs and other devices.

Ensure all connections are made securely and correctly to prevent short circuits or operational faults. Double-check wiring before powering up.

What are the typical applications for this drive?

This drive is ideal for pumps, fans, conveyors, and general machinery. It excels in applications requiring variable speed control.

It's commonly found in HVAC systems, water treatment plants, and manufacturing lines. Its versatility supports diverse industrial automation needs.

The drive's precise control and energy savings make it suitable for optimizing many processes. It's a robust solution for motion control challenges.