8LSC56.ee030ff00-4 | B&R 27.8 Nm Servo Motor

Introduction to the B&R 8LSC56.ee030ff00-4 Servo Motor

When your application demands precise positioning and excellent dynamic response, the 8LSC56.ee030ff00-4 from B&R delivers. This three-phase synchronous servo motor is engineered for compact, lightweight designs without sacrificing performance. With a nominal torque of 27.8 Nm and a nominal speed of 3000 rpm, it handles demanding tasks efficiently. The motor features a permanent-magnet, electronically commutated design that ensures smooth operation and high overload capacity. Whether you are upgrading existing machinery or building new systems, this motor provides the reliability you need.

Key Features and Technical Specifications

The 8LSC56.ee030ff00-4 stands out with its robust electrical and mechanical parameters. Below are the core specifications that define its performance:

• Nominal torque: 27.8 Nm
• Stall torque: 32.5 Nm
• Maximum torque: 75.0 Nm
• Nominal speed: 3000 rpm
• Maximum speed: 5000 rpm
• Nominal power: 8740 W
• Nominal current: 17.1 A
• Stall current: 19.9 A
• Maximum current: 64.6 A
• Torque constant (KT): 1.63 Nm/A
• Voltage constant (KE): 98.44 V/1000 rpm
• Stator resistance (R2ph): 0.398 Ohm
• Stator inductance (L2ph): 5.6 mH
• Electrical time constant: 14.1 ms
• Thermal time constant: 43 min
• Moment of inertia: 17.9 kg·cm²
• Mass (without brake): 16.50 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

These parameters ensure high torque density and precise control, making the motor suitable for a wide range of industrial applications.

Applications and Use Cases

The 8LSC56.ee030ff00-4 excels in applications requiring rapid acceleration, precise positioning, and compact installation. Typical use cases include packaging machinery, robotics, material handling, and machine tool spindles. Its large overload capacity allows it to handle peak loads without compromising performance. Furthermore, the optional single-cable hybrid solution simplifies wiring and reduces installation time. This motor is also well-suited for applications where space is limited but high performance is essential.

Installation and Setup

Proper installation is critical to maximize the motor's lifespan and performance. The 8LSC56.ee030ff00-4 supports multiple mounting configurations per EN 60034-7, including IM 3001 (horizontal) and IM 3011/3031. The flange and shaft end comply with DIN standards, ensuring compatibility with standard couplings and gearboxes. When mounting, ensure the motor is aligned correctly to avoid excessive radial or axial forces. Refer to the manufacturer's manual for detailed torque specifications and connector wiring diagrams. Always follow the recommended cable cross-section and connector type to maintain electrical integrity.

Maintenance and Reliability

Reliability is a key advantage of the 8LSC56.ee030ff00-4. The motor is rated for continuous operation (S1) per EN 60034-1 and features insulation class F, allowing it to withstand high thermal loads. The externally fan-cooled design (IC4A0A6) ensures effective heat dissipation, even in demanding environments. To maintain long-term reliability, perform regular inspections of the fan and cooling channels, and check for any unusual noise or vibration. The motor's IP64 protection rating (IP65 with optional oil seal) guards against dust and water ingress, reducing the risk of contamination-related failures. For safety-related applications, the motor supports encoders for functional safety, but STO is implemented via the ACOPOS drive, not internally. Always follow the manufacturer's maintenance guidelines to ensure safe operation.

Integration with ACOPOS Drives

The 8LSC56.ee030ff00-4 is designed to work seamlessly with B&R's ACOPOS servo drives, specifically the recommended drive model 024X. This integration ensures optimal performance and simplifies commissioning. The motor supports both resolver and EnDat feedback systems, including safety-related variants, allowing flexible integration into various control architectures. The single-cable hybrid option reduces cabling complexity, which is especially beneficial in multi-axis systems. For existing installations, upgrading to this motor can improve dynamic response and reduce energy consumption, thanks to its high efficiency and low inertia.

Common Questions and Troubleshooting

What is the maximum speed of the 8LSC56.ee030ff00-4?

The maximum speed is 5000 rpm, while the nominal speed is 3000 rpm.

Can the motor be used in safety-related applications?

Yes, the motor supports encoders for functional safety, but STO is implemented via the ACOPOS drive, not internally.

What is the holding torque of the optional brake?

The holding torque of the brake is 27 Nm.

What is the thermal time constant?

The thermal time constant is 43 minutes, indicating how quickly the motor heats up under load.

What is the recommended servo drive for this motor?

The recommended ACOPOS drive is model 024X.

Availability and Support

The 8LSC56.ee030ff00-4 is available from Petro Auto Tech, a trusted industrial automation parts supplier. We ensure fast delivery and competitive pricing. Please verify current lifecycle status and availability with Petro Auto Tech before ordering. Our team is ready to assist with any technical questions or ordering inquiries.