8LSC57.ee022ff00-4 | B&R 35.8 Nm Servo Motor

Introduction to the B&R 8LSC57.ee022ff00-4

When your application demands precise positioning and excellent dynamic response, the 8LSC57.ee022ff00-4 from B&R stands ready. This three-phase synchronous servo motor is engineered for compact, lightweight designs without sacrificing performance. With a nominal torque of 35.8 Nm and a nominal power of 8.25 kW, it handles heavy loads with ease.

Part of the 8LSC series, this motor uses permanent-magnet, electronically commutated technology. It offers a large overload capacity and optimized torque rippling for smooth, controllable motion. Whether you are upgrading existing machinery or building new systems, this motor provides the reliability you need.

Key Features & Technical Specifications

The 8LSC57.ee022ff00-4 is packed with features that enhance performance and simplify integration. Below are the essential specifications:

• Nominal speed: 2200 rpm
• Number of pole pairs: 5
• Nominal torque: 35.8 Nm
• Nominal power: 8250 W
• Nominal current: 16.2 A
• Stall torque: 37.7 Nm
• Stall current: 17.0 A
• Maximum torque: 90.0 Nm
• Maximum current: 55.6 A
• Maximum speed: 5000 rpm
• Torque constant (KT): 2.22 Nm/A
• Voltage constant (KE): 134.04 V/1000 rpm
• Stator resistance (R2ph): 0.560 Ohm
• Stator inductance (L2ph): 8.1 mH
• Electrical time constant: 14.4 ms
• Thermal time constant: 45 min
• Moment of inertia: 20.9 kg·cm²
• Mass (without brake): 18.00 kg
• Holding torque of brake: 27 Nm
• Brake mass: 3.50 kg
• Moment of inertia of brake: 9.5 kg·cm²
• Cable cross-section: 1.5 mm²
• Recommended servo drive (ACOPOS): 024X

One standout feature is the high overload capacity. The motor can deliver up to 90.0 Nm maximum torque, which is more than double its nominal rating. This makes it ideal for applications with short, intense peak loads.

Applications & Use Cases

The 8LSC57.ee022ff00-4 excels in a variety of industrial settings. Its compact size and reduced weight make it perfect for robotic arms, packaging machinery, and material handling systems. The excellent dynamic characteristics ensure precise positioning in CNC machines and pick-and-place operations.

Furthermore, the motor's large overload capacity supports high-inertia loads and rapid acceleration cycles. This is particularly beneficial in printing presses and textile machinery where consistent torque is critical. By choosing this motor, you can enhance throughput while maintaining accuracy.

Installation & Setup

Mounting the 8LSC57.ee022ff00-4 is straightforward. The motor features a flange per DIN 42948 Form A and a shaft end per DIN 748 Form E. It supports multiple mounting orientations, including IM 3001 horizontal, IM 3011, and IM 3031, per EN 60034-7. This flexibility allows for easy integration into existing systems.

The motor is externally fan-cooled (IC4A0A6), ensuring consistent thermal performance. For electrical connections, it uses a built-in plug-in connector system. The recommended ACOPOS servo drive is model 024X, which simplifies setup and tuning. Ensure proper cable cross-section (1.5 mm²) for optimal performance.

Maintenance & Reliability

Reliability is a key advantage of the 8LSC57.ee022ff00-4. The motor is rated for continuous operation (S1) per EN 60034-1, with insulation class F (IEC 60085). This means it can run at full load without overheating, reducing downtime and maintenance costs.

Routine inspection is simple. The externally mounted fan is easily accessible for cleaning or replacement. With proper care, this motor offers a long service life, making it a cost-effective choice for your automation needs.

Compatibility & Integration

The 8LSC57.ee022ff00-4 is designed to work seamlessly with B&R's ACOPOS servo drives, specifically the 024X model. This pairing ensures optimal performance and easy commissioning. The motor also supports optional single-cable (hybrid) solutions, reducing wiring complexity.

Feedback options include resolver or EnDat encoders, with safety-related variants available. This flexibility allows integration into safety systems when combined with appropriate drive functions. For existing B&R installations, this motor is a drop-in upgrade.

Troubleshooting & Common Issues

While the 8LSC57.ee022ff00-4 is robust, proper setup is essential. One common issue is incorrect encoder alignment, which can cause commutation errors. Always follow the installation manual to ensure correct alignment.

Another potential issue is overheating due to blocked airflow. Keep the fan and cooling fins clean. If you encounter abnormal noise or vibration, check the coupling and shaft alignment. For persistent problems, consult the official B&R documentation or contact Petro Auto Tech for support.

FAQ

Q: What is the nominal torque of the 8LSC57.ee022ff00-4?

A: The nominal torque is 35.8 Nm.

Q: What is the maximum speed of this motor?

A: The maximum speed is 5000 rpm.

Q: Does the motor come with a brake?

A: It is available with an optional brake that has a holding torque of 27 Nm.

Q: What is the recommended servo drive for this motor?

A: The recommended ACOPOS servo drive is model 024X.

Q: What is the mass of the motor without brake?

A: The mass is 18.00 kg.

Product Support & Availability

The 8LSC57.ee022ff00-4 is available through Petro Auto Tech. We stock this motor and can ship it promptly to minimize your downtime. Contact our team for current availability and lead times.

Please verify the lifecycle status and availability with Petro Auto Tech before ordering, as this information is not stated in the manual.