8LSC75.ee022ffgg-3 | B&R 45.5 Nm Servo Motor

Why Choose the B&R 8LSC75.ee022ffgg-3 for Your Motion Control Needs?

When your application demands high torque density and precise positioning, the 8LSC75.ee022ffgg-3 from B&R stands out. This three-phase synchronous servo motor is engineered for excellent dynamic characteristics and compact size, making it a reliable choice for modern industrial automation. With a nominal torque of 45.5 Nm and a maximum torque of 187 Nm, it delivers the power you need for demanding tasks.

Moreover, the motor's permanent-magnet design ensures efficient operation, while its externally fan-cooled construction maintains performance even under continuous load. Whether you are upgrading an existing system or designing a new one, this motor offers the reliability and precision that engineers trust.

Key Features and Technical Specifications

The 8LSC75.ee022ffgg-3 is packed with features that enhance performance and ease of integration. Below are the critical specifications you should know:

• Nominal speed: 2200 rpm
• Number of pole pairs: 5
• Nominal torque: 45.5 Nm
• Nominal power: 10482 W
• Nominal current: 20.5 A
• Stall torque: 56 Nm
• Stall current: 25.2 A
• Maximum torque: 187 Nm
• Maximum current: 124 A
• Maximum speed: 4500 rpm
• Torque constant (KT): 2.22 Nm/A
• Voltage constant (KE): 134.04 V/1000rpm
• Stator resistance (R2ph): 0.39 Ohm
• Stator inductance (L2ph): 7.1 mH
• Electrical time constant: 17.5 ms
• Thermal time constant: 46 min
• Moment of inertia: 74 kg·cm²
• Mass (without brake): 28 kg
• Holding torque of brake: 47 Nm
• Brake mass: 3.8 kg
• Moment of inertia of brake: 32 kg·cm²
• Cable cross-section: 4 mm²
• Connector size/type: 1.0
• Recommended servo drive (ACOPOS): 034X

One distinctive feature is the high overload capacity, allowing the motor to handle peak loads without compromising performance. This makes it suitable for applications with intermittent high-torque demands.

Applications and Use Cases

The 8LSC75.ee022ffgg-3 excels in a wide range of industrial applications. For instance, in packaging machinery, its precise positioning and dynamic response improve throughput and accuracy. Similarly, in material handling systems, the motor's compact size and high torque density enable efficient operation in tight spaces.

Furthermore, its robust construction and IP64 protection rating (per EN 60034-5) make it suitable for harsh environments, including those with dust or water splashes. The motor's ability to operate at temperatures up to +40°C (with derating above) ensures reliable performance in most factory settings.

Installation and Setup

Proper installation is key to maximizing the motor's lifespan and performance. The 8LSC75.ee022ffgg-3 supports multiple mounting configurations, including IM 3001, IM 3011, and IM 3031 per EN 60034-7. The flange type is DIN 42948 Form A, and the shaft end conforms to DIN 748 Form E, ensuring compatibility with standard couplings.

When installing, ensure that the motor is mounted securely and that the fan is not obstructed. For electrical connections, use the recommended cable cross-section of 4 mm² and follow the manufacturer's wiring diagram. Always verify the supply voltage and current ratings before energizing the motor.

Maintenance and Reliability

Routine maintenance is straightforward for the 8LSC75.ee022ffgg-3. The externally fan-cooled design helps dissipate heat, reducing thermal stress on the windings. The motor's insulation class F (per IEC 60085) allows for a maximum winding temperature of 155°C, providing a safety margin under normal operating conditions.

Periodically inspect the fan and cooling vents for dust accumulation, and ensure that the ambient temperature stays within the specified range. The motor's vibration severity class A1 (per EN 60034-14) indicates low vibration levels, contributing to longer bearing life. Always follow the manufacturer's manual for detailed maintenance procedures.

Compatibility and Integration

This motor is designed to work seamlessly with B&R's ACOPOS servo drives, specifically the 034X model. It supports both resolver and EnDat feedback systems, including safety-related variants, allowing for flexible integration into various control architectures. The single-cable (hybrid) solution option simplifies wiring and reduces installation time.

Additionally, the motor's compliance with LVD 2014/35/EU, EMC 2014/30/EU, and RoHS 2011/65/EU ensures that it meets European safety and environmental standards. However, please note that this model is not C-UR-US listed; only the 8LSA series carries UL certification.

Frequently Asked Questions

Q: What is the maximum torque of the 8LSC75.ee022ffgg-3?

A: The maximum torque is 187 Nm, providing high overload capability for demanding applications.

Q: What feedback options are available?

A: The motor supports resolver or EnDat (inductive/optical) feedback, including safety-related variants.

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

A: The recommended servo drive is the ACOPOS 034X, ensuring optimal performance and compatibility.

Q: Does the motor come with a brake option?

A: Yes, an optional holding brake is available with a holding torque of 47 Nm and a brake mass of 3.8 kg.

Q: What is the degree of protection?

A: The motor offers IP64 protection per EN 60034-5, with the fan rated IP20.

Product Support and Availability

The 8LSC75.ee022ffgg-3 is available through Petro Auto Tech, a trusted industrial automation parts supplier. We ensure genuine products and reliable delivery. Contact us for current availability and lead times.