8LSC57.ee030ffgg-4 | B&R 33.0 Nm Servo Motor

Introduction: The Evolution of Servo Motors

Over the past decades, industrial automation has shifted from simple fixed-speed drives to highly dynamic servo systems. Today, manufacturers demand precision, compactness, and energy efficiency. The 8LSC57.ee030ffgg-4 from B&R represents this evolution—a three-phase synchronous servo motor designed to meet modern production challenges.

This motor combines permanent-magnet technology with electronic commutation, delivering excellent dynamic characteristics and positioning accuracy. Its compact size and reduced weight make it a preferred choice for space-constrained applications.

Key Features and Technical Specifications

The 8LSC57.ee030ffgg-4 is engineered for performance. Below are its core parameters:

• Nominal speed: 3000 rpm
• Nominal torque: 33.0 Nm
• Nominal power: 10367 W
• Nominal current: 20.2 A
• Stall torque: 37.7 Nm
• Stall current: 23.1 A
• Maximum torque: 90.0 Nm
• Maximum current: 75.6 A
• Maximum speed: 5000 rpm
• Torque constant: 1.63 Nm/A
• Voltage constant: 98.44 V/1000rpm
• Stator resistance: 0.356 Ohm
• Stator inductance: 5.1 mH
• Electrical time constant: 14.2 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: 4 mm²
• Connector size/type: 1
• Recommended servo drive (ACOPOS): 034X

One distinctive feature is the high overload capacity. With a maximum torque of 90.0 Nm, this motor handles peak loads without compromising stability. This capability is crucial for applications with intermittent high-demand cycles.

Applications and Use Cases

The 8LSC57.ee030ffgg-4 excels in various industrial settings. Its excellent dynamic characteristics make it ideal for packaging machinery, where rapid starts and stops are common. Additionally, its positioning precision benefits robotic assembly lines, ensuring accurate component placement. The motor's compact design also suits material handling systems, where space is at a premium. Furthermore, its reduced weight contributes to lower energy consumption, aligning with cost-saving initiatives.

Installation and Setup

Proper installation is vital for optimal performance. The motor supports multiple mounting configurations per EN 60034-7, including IM 3001 (horizontal) and IM 3011. The flange conforms to DIN 42948 Form A, and the shaft end meets DIN 748 Form E. Ensure the key fits per DIN 6885-1 Form A. For cooling, the externally fan-cooled design (IC4A0A6) requires adequate airflow. Always follow the manufacturer's manual for electrical connections and grounding.

Maintenance and Reliability

Routine maintenance extends the motor's lifespan. The insulation class is F (IEC 60085), and thermal protection is provided by KTY83-110 or AM-PTC1000 sensors. The maximum winding temperature is 155°C. Regularly inspect the fan and cooling paths to prevent overheating. The motor's vibration severity is A1 per EN 60034-14, indicating low vibration levels. Bearing life follows DIN ISO 281; periodic lubrication may be required depending on operating conditions. Always consult the manual for specific intervals.

Compatibility and Integration

The 8LSC57.ee030ffgg-4 integrates seamlessly with B&R ACOPOS servo drives, specifically the 034X model. This pairing ensures optimal tuning and performance. Feedback options include resolver or EnDat encoders, with single-cable hybrid solutions available. For functional safety, encoders with safety-related variants can be selected, and STO (Safe Torque Off) is implemented via the ACOPOS drive. This compatibility simplifies system design and reduces wiring complexity.

Troubleshooting Common Issues

If the motor fails to start, check the power supply and connections. Overheating may indicate blocked cooling or excessive load. Unusual noise could signal bearing wear or misalignment. For encoder errors, verify cable integrity and connector seating. Always refer to the official B&R documentation for detailed diagnostics. If issues persist, contact Petro Auto Tech for technical support.

Frequently Asked Questions

Q: What is the nominal torque of the 8LSC57.ee030ffgg-4?

A: The nominal torque is 33.0 Nm.

Q: Can this motor operate at speeds above 3000 rpm?

A: Yes, the maximum speed is 5000 rpm.

Q: What cooling method does the motor use?

A: It uses external fan cooling (IC4A0A6).

Q: Is the motor suitable for safety-related applications?

A: Yes, encoders for functional safety are available, and STO can be implemented via the ACOPOS drive.

Q: What is the recommended servo drive?

A: The recommended ACOPOS drive is model 034X.

Product Support and Availability

The 8LSC57.ee030ffgg-4 is available through Petro Auto Tech. We ensure fast delivery and competitive pricing. Contact our team for current stock and lead times. We are committed to supporting your automation needs.