Addressing Motion Control Challenges with the 8LSC46.ee030ffgg-4
In modern manufacturing, engineers face the constant challenge of balancing speed, precision, and reliability. The B&R 8LSC46.ee030ffgg-4 three-phase synchronous servo motor directly addresses these demands. It is designed for applications requiring excellent dynamic characteristics, positioning precision, and a compact, lightweight form factor. This motor helps solve the problem of limited installation space without compromising on performance.
The 8LSC46.ee030ffgg-4 features a permanent-magnet, electronically commutated design. This construction enables high overload capacity and optimized torque rippling, which translates to smoother motion and better controllability. For system integrators, the availability of a single-cable (hybrid) solution simplifies wiring and reduces installation time, a key advantage in complex machinery.
Key Technical Specifications and Performance
Understanding the motor's specifications is crucial for proper selection. The 8LSC46.ee030ffgg-4 delivers a nominal speed of 3000 rpm and a nominal torque of 10.9 Nm, with a nominal power of 3435 W. Its nominal current is 6.7 A, while the stall torque is 13.0 Nm at a stall current of 8.0 A. For short-duration peak loads, the motor can provide a maximum torque of 38.0 Nm and a maximum current of 36.5 A, with a maximum speed of 6600 rpm.
The motor's torque constant is 1.63 Nm/A, and its voltage constant is 98.44 V/1000rpm. The stator resistance is 2.13 Ohm, and the stator inductance is 17.1 mH. These parameters ensure efficient energy conversion and predictable performance. The electrical time constant is 8.0 ms, and the thermal time constant is 27 minutes, indicating how quickly the motor responds to load changes and heat buildup.
With a moment of inertia of 4.0 kg·cm² and a mass of 8.64 kg (without brake), the motor offers a favorable power-to-weight ratio. The optional brake provides a holding torque of 15 Nm and adds 1.00 kg to the mass, with its own moment of inertia of 1.66 kg·cm². The cable cross-section is 0.75 mm², and the connector size/type is 1.
Solving Application Challenges Across Industries
The 8LSC46.ee030ffgg-4 excels in applications where dynamic response and accuracy are critical. In packaging machinery, for example, the motor's high overload capacity allows it to handle sudden load changes during indexing or cutting operations. Its compact size and reduced weight make it ideal for robotic arms and handling systems where space is at a premium.
In a typical material handling scenario, the motor's 3000 rpm nominal speed and 10.9 Nm torque provide the necessary power for conveyor drives. The optimized torque rippling ensures smooth motion, reducing vibration and improving product quality. The optional single-cable solution simplifies cable management, which is particularly beneficial in moving axes.
For machine tool applications, the 8LSC46.ee030ffgg-4's positioning precision is a key advantage. The availability of encoders for functional safety supports safe motion monitoring, meeting modern safety requirements. The motor's IP64 protection rating (per EN 60034-5) makes it suitable for environments with dust and water splashes, while the externally fan-cooled design (IC4A0A6) ensures reliable operation even under continuous duty.
Integration with ACOPOS Servo Drives
The 8LSC46.ee030ffgg-4 is designed to work seamlessly with B&R's ACOPOS servo drives. The recommended drive series is 8X8X, which provides the necessary power and control algorithms. The motor supports both resolver and EnDat feedback systems, including safety-related variants. This flexibility allows engineers to choose the feedback type that best matches their control architecture and safety requirements.
The motor's single-cable (hybrid) solution option combines power and feedback in one cable, reducing wiring complexity and potential failure points. This is especially valuable in applications with long cable runs or limited cable carrier space. The built-in plug-in connectors further simplify installation and maintenance.
Real-World Application Example
Consider a high-speed labeling machine that must apply labels to bottles at a rate of 300 units per minute. The 8LSC46.ee030ffgg-4, with its 3000 rpm nominal speed and 10.9 Nm torque, can drive the labeling station with precision. The motor's high overload capacity (38.0 Nm maximum torque) handles the intermittent load spikes during label application, while the low torque rippling ensures consistent label placement. This results in fewer rejects and higher throughput.
Frequently Asked Questions
What is the nominal speed and torque of the 8LSC46.ee030ffgg-4?
The nominal speed is 3000 rpm, and the nominal torque is 10.9 Nm. The motor also provides a stall torque of 13.0 Nm and a maximum torque of 38.0 Nm for short-duration overloads.
Can the 8LSC46.ee030ffgg-4 be used with third-party servo drives?
While the motor is optimized for B&R ACOPOS drives (recommended series 8X8X), it can be used with other drives that support the appropriate feedback types (resolver or EnDat). However, for best performance and safety functionality, B&R drives are recommended. Please consult the motor's manual for detailed compatibility information.
What cooling method does the 8LSC46.ee030ffgg-4 use?
The motor is externally fan-cooled with a machine-mounted independent fan component, classified as IC4A0A6. This ensures effective heat dissipation even at low speeds or standstill, maintaining performance and longevity.
Does the 8LSC46.ee030ffgg-4 support functional safety?
Yes, the motor can be equipped with encoders for functional safety. The safe torque off (STO) function is implemented by the ACOPOS servo drive, not the motor itself. This allows for safe stopping in emergency situations.
Why Choose AutoDCSTech for Your Automation Needs
AutoDCSTech is a reliable supplier of industrial automation spare parts, including the B&R 8LSC46.ee030ffgg-4. We understand the importance of minimizing downtime and ensuring your operations run smoothly. Our team can help you verify the lifecycle status and availability of this motor before ordering. Contact us today to discuss your requirements and get a quote.
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