Siemens 1FL6042-2AF21-1LG1 High Speed Medium Power Low Inertia Servo Motor

The Siemens 1FL6042-2AF21-1LG1 is a high-speed, medium-power, low-inertia servo motor engineered for demanding industrial automation tasks. Its design prioritizes rapid acceleration and precise positioning, making it ideal for applications requiring dynamic performance and high throughput. With a nominal power of 4 kW and a compact frame size, this motor delivers exceptional power density. Its low inertia characteristics ensure superior dynamic response and reduced settling times, critical for complex motion control systems. The 1FL6042-2AF21-1LG1 operates efficiently within a wide speed range, supporting continuous operation up to 6000 RPM, with peak speeds reaching up to 7000 RPM, underscoring its suitability for high-cycle applications. The motor features a smooth shaft end with a shaft seal, ensuring robust protection in challenging environments. It is designed for operation with Siemens SINAMICS or SIMOTICS drives, facilitating seamless integration into existing automation architectures.

Siemens 1FL6042-2AF21-1LG1: Product Specifications

| Parameter                 | Value                                    |

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

| Motor Type                | Low Inertia Servo Motor                  |

| Nominal Power             | 4 kW                                     |

| Nominal Speed             | 4000 RPM                                 |

| Maximum Speed             | 7000 RPM                                 |

| Nominal Torque            | 12.7 Nm                                  |

| Maximum Torque            | 38.2 Nm                                  |

| Inertia                   | 0.00017 kgm²                             |

| Frame Size                | IM B5                                    |

| Shaft End                 | Smooth shaft end, with shaft seal        |

| Protection Rating         | IP65                                     |

| Cooling                   | Self-cooled                              |

| Motor Connection          | Circular connector                         |

| Encoder Resolution        | 2048 S/R                                 |

| Insulation Class          | F                                        |

| Ambient Temperature Range | 0°C to 40°C                              |

Core Features & Market Positioning

The Siemens 1FL6042-2AF21-1LG1 distinguishes itself through its exceptional low inertia, enabling significantly faster acceleration and deceleration profiles compared to standard servo motors. This characteristic is paramount for applications demanding high dynamic response, such as pick-and-place operations, automated assembly, and precision cutting. Its robust construction, featuring an IP65 protection rating, ensures reliable operation even in harsh industrial environments with dust and water ingress. Positioned as a premium solution, the 1FL6042-2AF21-1LG1 leverages Siemens' extensive experience in automation to offer a product that balances high performance with operational reliability and ease of integration, making it a favored choice for machine builders and system integrators seeking cutting-edge motion control capabilities.

Key Application Scenarios

This high-speed servo motor is ideally suited for a variety of demanding industrial automation tasks. Its rapid dynamic response makes it a prime candidate for high-throughput packaging machinery, where quick and precise movements are essential for efficient operation. In the electronics manufacturing sector, the 1FL6042-2AF21-1LG1 excels in automated assembly lines and intricate pick-and-place robotics, where its low inertia minimizes settling times and enhances positional accuracy. Furthermore, its robust performance envelope supports applications in machine tool automation, textile machinery, and printing presses, where fast accelerations, high speeds, and precise control are critical for achieving superior product quality and productivity.

Practical System Integration Guidance

Integrating the Siemens 1FL6042-2AF21-1LG1 into an automation system typically involves connecting it to a compatible Siemens drive, such as a SINAMICS S120 or G130. The motor's circular connector facilitates a secure and straightforward electrical connection, ensuring proper signal integrity for encoder feedback and power delivery. Careful attention must be paid to the encoder connection, often utilizing a DRIVE-CLiQ interface for digital communication, which allows for parameterization and diagnostics directly from the drive. Proper cable selection and routing are crucial to mitigate electromagnetic interference, especially in high-speed applications. Motor mounting should adhere to the IM B5 standard, utilizing appropriate fasteners to ensure secure mechanical coupling and alignment with the driven load, preventing vibration and premature wear.

Operation and Risk Mitigation

Safe operation of the Siemens 1FL6042-2AF21-1LG1 requires adherence to the manufacturer's safety guidelines and the principles of functional safety. Ensure that the motor is correctly grounded to prevent electrical hazards. Over-temperature protection is typically managed by the connected drive, which monitors motor current and temperature via the encoder feedback. Regularly inspect power and encoder cables for signs of wear or damage to prevent operational interruptions and potential safety risks. Common troubleshooting may involve checking drive parameters, ensuring correct motor identification is set within the drive, and verifying encoder signal integrity. Fault codes displayed on the drive's interface should be cross-referenced with the drive's manual for specific diagnostic information.

Scalability & Long-Term Value

The Siemens 1FL6042-2AF21-1LG1 offers significant long-term value through its compatibility with the broader Siemens Digital Industries ecosystem. This allows for seamless integration with other Siemens automation components, including PLCs (SIMATIC), HMIs, and industrial networks like PROFINET, facilitating the creation of scalable and future-proof automation solutions. As industrial demands evolve, the robust design and advanced performance of this servo motor ensure it can accommodate increased throughput requirements and more complex motion profiles. Its integration into systems supporting Industrial Internet of Things (IIoT) initiatives enables enhanced data acquisition for predictive maintenance, process optimization, and remote monitoring, further solidifying its long-term economic viability.

Frequently Asked Questions

What is the primary advantage of the Siemens 1FL6042-2AF21-1LG1?

Its exceptionally low inertia allows for very fast acceleration and deceleration. This leads to quicker cycle times in automated processes.

This characteristic is crucial for high-speed applications requiring precise motion control and rapid responses. It minimizes settling times after positional changes.

The improved dynamic performance directly translates to increased productivity and efficiency in manufacturing environments. It supports sophisticated motion profiles.

How does the low inertia benefit applications?

Low inertia means the motor can change speed or direction with minimal effort. This is ideal for rapid start-stop cycles.

Applications like pick-and-place robots and automated assembly benefit greatly. They require quick, accurate movements between points.

This also reduces mechanical stress on the system over time. It contributes to greater equipment longevity and reduced maintenance needs.

What types of industries commonly use this motor?

The electronics manufacturing sector frequently employs this motor. It is used in automated assembly and high-precision robotics.

Packaging and food processing industries also benefit. They require high-speed, repetitive motion for efficient production lines.

Machine tool and printing industries utilize its dynamic capabilities. It's suited for high-cycle applications demanding accuracy and speed.

What drives are compatible with the Siemens 1FL6042-2AF21-1LG1?

Siemens SINAMICS drives are the primary compatible option. Examples include the SINAMICS S120 and G130 series.

These drives are optimized for motion control and servo applications. They offer advanced features for precise performance tuning.

The integration ensures seamless communication and parameterization. It allows for optimal motor control and diagnostics.

What is the protection rating of this servo motor?

The motor features an IP65 protection rating. This signifies high resistance to dust ingress.

It also offers protection against water jets from any direction. This ensures operational reliability in washdown environments.

This robust protection makes it suitable for demanding industrial settings. It can withstand challenging conditions without performance degradation.

Can this motor be used in extreme temperatures?

The motor is rated for operation between 0°C and 40°C. This is a standard industrial operating range.

Operating outside this specified temperature range can affect performance. It may also lead to premature component failure.

Proper ventilation and environmental control are important. Ensure the motor operates within its thermal limits for longevity.

How is the encoder connected to the drive?

The encoder typically uses a DRIVE-CLiQ interface for communication. This is a Siemens digital interface.

This interface allows for high-resolution feedback. It enables precise position and speed control for the motor.

It also facilitates motor identification and diagnostics. This simplifies commissioning and troubleshooting processes.

What are the key technical specifications of the Siemens 1FL6042-2AF21-1LG1?

It has a nominal power of 4 kW and a nominal speed of 4000 RPM. Its maximum speed reaches up to 7000 RPM.

The motor provides a nominal torque of 12.7 Nm and a maximum torque of 38.2 Nm. Its inertia is very low at 0.00017 kgm².

It features a smooth shaft end with a shaft seal and an IP65 protection rating. The frame size is IM B5.

How does this motor compare to standard industrial motors?

Its low inertia provides superior dynamic response compared to standard motors. This allows for much faster acceleration.

Standard motors typically have higher inertia. This limits their ability to achieve rapid speed changes.

The 1FL6042-2AF21-1LG1 is specifically designed for precision motion control. Standard motors are often for continuous torque applications.

What are the benefits of using Siemens automation components together?

Using Siemens components ensures seamless integration. This simplifies system design and setup.

It allows for optimized performance and diagnostics. The entire system benefits from unified control and communication.

This also often leads to better support and interoperability. It creates a cohesive automation solution for industrial needs.