Solving Motion Control Challenges with the 8LSC46.ee030ff00-4
When production lines demand precise positioning and rapid acceleration, engineers often face a common problem: standard motors cannot deliver both speed and accuracy without compromising size or weight. The B&R 8LSC46.ee030ff00-4 three-phase synchronous servo motor directly addresses this pain point. It combines permanent-magnet technology with electronic commutation to provide excellent dynamic characteristics and positioning precision in a compact, lightweight package.
This motor is engineered for applications where space is tight but performance cannot be sacrificed. Its design includes a large overload capacity and optimized torque rippling, which translates to smoother motion and better controllability. For system integrators, the option of a single-cable hybrid solution simplifies wiring and reduces installation time, while encoders for functional safety help meet modern machine safety requirements.
Key Technical Specifications at a Glance
Understanding the core parameters of the 8LSC46.ee030ff00-4 helps you evaluate its fit for your application. The table below summarizes the most critical electrical and mechanical data, all sourced directly from the manufacturer's documentation.
| Parameter | Value |
|---|---|
| Nominal speed | 3000 rpm |
| Nominal torque | 10.9 Nm |
| Nominal power | 3435 W |
| Nominal current | 6.7 A |
| Stall torque | 13.0 Nm |
| Stall current | 8.0 A |
| Maximum torque | 38.0 Nm |
| Maximum current | 36.5 A |
| Maximum speed | 6600 rpm |
| Torque constant | 1.63 Nm/A |
| Voltage constant | 98.44 V/1000 rpm |
| Stator resistance | 2.13 Ohm |
| Stator inductance | 17.1 mH |
| Electrical time constant | 8.0 ms |
| Thermal time constant | 27 min |
| Moment of inertia | 4.0 kg·cm² |
| Mass (without brake) | 8.64 kg |
| Holding torque of brake | 15 Nm |
| Brake mass | 1.00 kg |
| Moment of inertia of brake | 1.66 kg·cm² |
| Cable cross-section | 0.75 mm² |
The motor operates with a nominal speed of 3000 rpm and can reach a maximum speed of 6600 rpm, offering flexibility for high-speed processes. With a nominal torque of 10.9 Nm and a stall torque of 13.0 Nm, it provides strong holding and acceleration capabilities. The maximum torque of 38.0 Nm ensures it can handle peak loads during demanding cycles.
Application Scenarios: Where This Motor Excels
The 8LSC46.ee030ff00-4 is well-suited for a variety of industrial applications that require precise motion control. In packaging machinery, for example, the motor's high dynamic response and positioning accuracy enable rapid indexing and accurate cut registration, reducing waste and increasing throughput. Its compact size and reduced weight make it easier to integrate into space-constrained machine frames.
In material handling and robotics, the motor's large overload capacity allows it to handle sudden load changes without losing synchronization. The optional single-cable hybrid solution simplifies cable management in moving axes, improving reliability and reducing maintenance points. Additionally, the availability of encoders for functional safety supports the implementation of safe motion functions, which is increasingly important in collaborative applications.
For machine tool spindles or feed axes, the 8LSC46.ee030ff00-4 delivers the torque and speed needed for precise machining operations. The optimized torque rippling ensures smooth rotation at low speeds, which is critical for surface finish quality. The motor's IP64 protection rating (per EN 60034-5) makes it suitable for environments with dust and light water spray, while the externally fan-cooled design (IC4A0A6) maintains stable thermal performance.
Integration and Compatibility
Integrating the 8LSC46.ee030ff00-4 into your existing automation system is straightforward. The motor is designed to work with B&R ACOPOS servo drives, specifically the 8X8X series, which provides the necessary commutation and control algorithms. The feedback system can be either resolver or EnDat (inductive or optical), including safety-related variants, allowing you to choose the level of precision and safety required for your application.
The motor features built-in plug-in connectors, which reduce wiring time and minimize the risk of connection errors. The single-cable hybrid option combines power and feedback in one cable, further simplifying installation. For applications that demand functional safety, the encoders support safe motion monitoring, and the STO (Safe Torque Off) function is implemented via the ACOPOS drive, not within the motor itself.
Addressing Common Engineering Concerns
One frequent concern is thermal management. The 8LSC46.ee030ff00-4 is externally fan-cooled with a machine-mounted independent fan component, rated IC4A0A6. The thermal protection includes KTY83-110 and AM-PTC1000 sensors, with a maximum winding temperature of 155 °C. When operated via ACOPOS with EnDat or resolver feedback, the motor can be configured for 110/130 °C limits, providing flexibility for different thermal environments.
Another concern is environmental resistance. The motor operates in ambient temperatures from -15 to +40 °C (up to +55 °C with derating). It can be installed at elevations up to 2000 m, with a derating of 10% per 10 K above 40 °C and 5% per 1000 m above sea level. The flange temperature is limited to 65 °C. The motor is rated IP64 per EN 60034-5, with the fan rated IP20 (IP65 with optional oil seal).
Frequently Asked Questions
What is the maximum speed of the 8LSC46.ee030ff00-4?
The maximum speed is 6600 rpm, while the nominal speed is 3000 rpm. This wide speed range allows the motor to be used in both high-speed and high-torque applications, depending on the load profile.
Can the 8LSC46.ee030ff00-4 be used with third-party drives?
The motor is specifically designed for use with B&R ACOPOS servo drives, particularly the 8X8X series. For optimal performance and safety, we recommend using the matching ACOPOS drive. Please consult AutoDCSTech for compatibility details if you are considering a different drive.
What feedback options are available for this motor?
The motor supports resolver (R0/R2) or EnDat (inductive or optical) feedback, including safety-related variants. The feedback system is selected based on your application's precision and safety requirements. The single-cable hybrid solution is available to combine power and feedback in one cable.
Does the motor come with a brake option?
Yes, the motor can be equipped with a holding brake. The brake has a holding torque of 15 Nm and adds 1.00 kg to the mass and 1.66 kg·cm² to the moment of inertia. This is useful for vertical axes or applications where the load must be held in position when power is removed.
Why Choose AutoDCSTech for Your Automation Needs
AutoDCSTech is a trusted supplier of industrial automation spare parts, including the B&R 8LSC46.ee030ff00-4. We understand the importance of reliable components in your production line. Our team can assist with product selection, availability, and technical support to ensure you get the right solution for your application.
We offer competitive pricing and fast delivery to minimize downtime. With our industry expertise, we help you navigate the complexities of servo motor selection and integration. Contact AutoDCSTech today to discuss your requirements and get a quote.
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