Siemens 6SL3210-5BE21-1UV0 V20 400V VFD for Fan & Pump Frequency Control 3.1A 1.1kW

The Siemens 6SL3210-5BE21-1UV0 V20 400V VFD is a highly capable variable frequency drive engineered for precise fan and pump control. Delivering 3.1A at 1.1kW, this drive excels in energy efficiency and operational flexibility, making it an ideal choice for HVAC systems, water management, and other industrial applications demanding sophisticated motor speed regulation. Its robust design ensures reliable performance in demanding environments, offering significant operational cost savings through optimized energy consumption.

Product Specifications

| Parameter           | Value                                |

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

| Manufacturer        | Siemens                                |

| Series              | SINAMICS V20                         |

| Model Number        | 6SL3210-5BE21-1UV0                   |

| Voltage Rating      | 400V                                 |

| Current Rating      | 3.1A                                 |

| Power Rating        | 1.1kW (1.5 HP)                       |

| Frame Size          | FSA                                  |

| Protection Class    | IP20                                 |

| Communication Ports | Optional (e.g., PROFINET, PROFIBUS) |

| Operating Temperature | -10°C to +50°C                      |

Core Features & Market Positioning

The SINAMICS V20 VFD stands out for its user-friendly interface and straightforward commissioning, significantly reducing setup time and complexity for integrators. Its integrated safety functions, such as Safe Torque Off (STO), enhance operational safety in critical applications. Compared to other VFDs in its class, the V20 series emphasizes cost-effectiveness without compromising on essential functionality, positioning it as a strong contender for small to medium-sized applications where performance and budget are key considerations. The drive's energy-saving features, including automatic motor adaptation and optimized flux modes, contribute to substantial reductions in power consumption for fan and pump applications, a key differentiator in today's energy-conscious market.

Key Application Scenarios

The Siemens 6SL3210-5BE21-1UV0 is exceptionally well-suited for variable speed control in fan and pump systems across various industries. In building automation and HVAC, it precisely regulates airflow and water pressure, optimizing comfort while minimizing energy use. For water and wastewater treatment, this VFD ensures efficient operation of circulation pumps and blowers, adapting to demand fluctuations and reducing wear on equipment. Its compact design and robust performance also make it a reliable choice for general industrial machinery, conveyor systems, and processing equipment where variable speed is beneficial for process optimization and energy savings.

Practical System Integration Guidance

Integrating the Siemens 6SL3210-5BE21-1UV0 VFD into existing systems is streamlined by its clear terminal layout and intuitive parameterization. Basic wiring involves connecting the incoming power supply to the power terminals, the motor to the motor terminals, and any control signals to the appropriate I/O terminals. Commissioning often begins with automatic motor identification, a feature that tunes the VFD to the specific motor characteristics for optimal performance and energy efficiency. Advanced integration can involve utilizing the optional communication modules to interface with PLC systems via protocols like PROFINET or PROFIBUS, enabling remote monitoring, control, and diagnostics within a broader industrial automation network.

Operation and Risk Mitigation

Safe operation of the Siemens 6SL3210-5BE21-1UV0 VFD relies on adherence to installation guidelines and proper parameter settings. Always ensure the drive is properly grounded and that motor wiring is installed according to the manual to prevent electrical hazards. Common operational issues, such as motor overheating or nuisance tripping, can often be resolved by verifying motor nameplate data against VFD parameters, particularly overload settings and thermal protection. Critical fault codes, such as F001 (Overcurrent) or F002 (Overvoltage), typically indicate issues with motor load, power supply quality, or incorrect parameterization, requiring careful investigation before restarting the drive.

Scalability & Long-Term Value

The SINAMICS V20 platform offers a degree of scalability, particularly through its compatibility with Siemens' broader industrial automation ecosystem. While the 6SL3210-5BE21-1UV0 is a standalone unit, its integration capabilities with PLCs and SCADA systems ensure it can be part of a larger, intelligent control architecture. For businesses looking to enhance their Industrial Internet of Things (IIoT) capabilities, the V20’s communication options allow for data logging and remote diagnostics, contributing to predictive maintenance strategies and optimized plant performance over the long term. Upgrades to more advanced SINAMICS models are possible with minimal disruption, leveraging a familiar programming structure.

Frequently Asked Questions (FAQs)

What is the power rating of the Siemens 6SL3210-5BE21-1UV0 VFD?

This VFD is rated at 1.1 kilowatts (kW), which is equivalent to approximately 1.5 horsepower (HP).

This power output makes it suitable for a wide range of medium-duty industrial applications.

It can effectively drive pumps and fans requiring this specific motor power range.

How do I connect the Siemens 6SL3210-5BE21-1UV0 VFD to a motor?

Connect the motor's three power leads to the designated motor output terminals (U, V, W) on the VFD.

Ensure all connections are secure and follow the wiring diagrams in the product manual precisely.

Proper grounding of both the VFD and the motor is essential for safety and reliable operation.

What are the typical applications for the Siemens 6SL3210-5BE21-1UV0 VFD?

This VFD is ideal for variable speed control in fan and pump systems.

Common uses include HVAC systems, water circulation, and irrigation pumps.

It's also applicable in general industrial machinery needing precise speed adjustment.

Can I use this VFD for applications other than fans and pumps?

Yes, the VFD can control any standard three-phase AC induction motor within its power and current ratings.

It is well-suited for conveyor belts, mixers, and other machinery requiring variable speed.

Always verify motor compatibility and ensure operating parameters are set correctly for the specific load.

What voltage is required to operate the Siemens 6SL3210-5BE21-1UV0 VFD?

The VFD requires a 400-volt (V) three-phase AC power supply for operation.

Ensure your incoming power supply matches this voltage requirement to prevent damage.

Always check local power grid specifications before installation and connection.

What is the maximum current output of the Siemens 6SL3210-5BE21-1UV0 VFD?

The drive has a maximum continuous current output of 3.1 amperes (A).

This current rating dictates the size and type of motor it can safely power.

Do not exceed this current limit to avoid overloading and potential drive failure.

Does the Siemens 6SL3210-5BE21-1UV0 VFD have built-in safety features?

Yes, the SINAMICS V20 series typically includes essential safety functions like Safe Torque Off (STO).

STO prevents unintentional motor start-up, enhancing personnel safety during maintenance.

Always consult the manual for specific safety feature activation and configuration details.

How do I commission the Siemens 6SL3210-5BE21-1UV0 VFD?

Basic commissioning involves connecting power and motor, then performing automatic motor identification.

Parameter settings for acceleration/deceleration, frequency limits, and I/O configurations are crucial.

Refer to the commissioning manual for detailed step-by-step instructions.

What is the protection class (IP rating) of this VFD?

The Siemens 6SL3210-5BE21-1UV0 VFD has an IP20 protection rating.

This means it is protected against solid objects greater than 12.5 mm but has no protection against water.

It is intended for installation in control cabinets or clean, dry environments.

Is this VFD compatible with Siemens PLCs like S7-1200?

Yes, the SINAMICS V20 can be integrated with Siemens PLCs, including the S7-1200, via communication modules.

Optional PROFINET or PROFIBUS modules allow for seamless data exchange and control.

This integration enables advanced automation and monitoring within a Siemens automation system.