Introduction to the 8LSC53.ee045ff00-4
The B&R 8LSC53.ee045ff00-4 is a three-phase synchronous servo motor designed for applications that demand excellent dynamic characteristics, positioning precision, and compact size. This externally fan-cooled motor features a permanent-magnet, electronically commutated design, making it a reliable choice for modern industrial automation. With a nominal speed of 4500 rpm and a nominal torque of 10.7 Nm, it delivers robust performance for a variety of motion control tasks.
Engineers often select this motor for its large overload capacity and optimized torque rippling, which contribute to smooth and precise operation. The motor's reduced weight and compact form factor simplify integration into space-constrained machinery. Additionally, the option for a single-cable (hybrid) solution reduces wiring complexity and installation time.
Key Technical Specifications
The 8LSC53.ee045ff00-4 offers a balanced set of electrical and mechanical parameters that support high-performance applications. Its nominal power is 5023 W, with a nominal current of 9.8 A. The motor achieves a maximum torque of 30.0 Nm and a maximum current of 41.7 A, providing ample headroom for demanding load cycles.
The motor's torque constant is 1.09 Nm/A, and its voltage constant is 65.97 V/1000 rpm. These values indicate efficient energy conversion, which is critical for reducing energy consumption in continuous operation. The stator resistance is 0.647 Ohm, and the stator inductance is 7.7 mH, contributing to the motor's electrical time constant of 11.9 ms.
With a moment of inertia of 6.8 kg·cm² and a mass of 10.60 kg (without brake), the motor offers a favorable inertia-to-torque ratio for rapid acceleration and deceleration. The optional brake provides a holding torque of 15 Nm and adds 1.40 kg to the mass, with an additional moment of inertia of 1.66 kg·cm².
Applications and Use Cases
The 8LSC53.ee045ff00-4 is well-suited for applications that require high dynamic response and precise positioning. In packaging machinery, for example, the motor can drive servo-controlled axes that must synchronize with high-speed lines, ensuring accurate product placement and reducing waste. Its compact size and reduced weight allow for easier integration into existing machine designs.
In the automotive industry, this motor can be used in assembly stations where precise torque control and rapid indexing are essential. The large overload capacity ensures that the motor can handle temporary peak loads without compromising performance. Additionally, the motor's encoders for functional safety support safe motion monitoring, which is increasingly important in collaborative robot applications.
Another typical scenario is in material handling systems, where the motor's high maximum speed of 5000 rpm enables fast transfer operations. The externally fan-cooled design (IC4A0A6) maintains stable thermal performance, even during continuous operation at nominal load. This reliability reduces unplanned downtime and maintenance costs.
Comparison with Similar Motors
When compared to other servo motors in its class, the 8LSC53.ee045ff00-4 stands out due to its high torque density and integrated safety features. For instance, its stall torque of 15.6 Nm and stall current of 14.3 A indicate a strong low-speed performance, which is beneficial for applications requiring high holding torque. The motor's thermal time constant of 38 minutes allows it to withstand short-term overloads without overheating.
In contrast, some competing motors may offer similar nominal torque but lack the same level of overload capability or the option for functional safety encoders. The 8LSC53.ee045ff00-4 also provides a choice of feedback systems, including resolver or EnDat, with single- or multi-turn options, giving engineers flexibility in system design. The single-cable hybrid solution further simplifies installation and reduces the risk of cable-related failures.
Integration and Compatibility
The 8LSC53.ee045ff00-4 is designed to work seamlessly with B&R's ACOPOS servo drives, specifically the recommended 017X series. This integration ensures optimal performance and simplifies commissioning. The motor supports both resolver and EnDat feedback, including safety-related variants, which can be used with ACOPOS drives to implement Safe Torque Off (STO) functions.
The motor's electrical parameters, such as the stator resistance and inductance, are matched to the drive's output characteristics, ensuring stable control loops. The cable cross-section of 1.5 mm² and connector size type 1 are standard for this motor class, making replacement and maintenance straightforward. For engineers upgrading from older motor generations, the -4 generation updates include improved cooling and higher protection ratings, such as IP64 (IP65 with oil seal).
Environmental and Safety Considerations
The 8LSC53.ee045ff00-4 operates within a temperature range of -15 to +40 °C, with a maximum of +55 °C, and can be derated at higher elevations. The motor's protection rating is IP64 per EN 60034-5, with the fan rated IP20. For applications requiring higher ingress protection, an optional oil seal can upgrade the motor to IP65. The motor complies with LVD 2014/35/EU, EMC 2014/30/EU, and RoHS 2011/65/EU, ensuring it meets European safety and environmental standards.
Thermal protection is provided via KTY83-110 or AM-PTC1000 sensors, with a maximum winding temperature of 155 °C. This ensures the motor operates within safe thermal limits, extending its lifespan. The motor's vibration severity is rated A1 per EN 60034-14, and its bearing life follows DIN ISO 281, providing reliable long-term operation.
Frequently Asked Questions
What is the nominal torque of the 8LSC53.ee045ff00-4?
The nominal torque is 10.7 Nm, with a stall torque of 15.6 Nm and a maximum torque of 30.0 Nm. This range allows the motor to handle both continuous and peak load requirements effectively.
Can this motor be used with ACOPOS drives?
Yes, the recommended servo drive is the ACOPOS 017X series. This combination ensures optimal performance and supports features like STO when using safety-rated encoders.
What feedback options are available?
The motor supports resolver (R0/R2) or EnDat (inductive/optical) feedback systems, including safety-related variants. Single- or multi-turn configurations are available, and a single-cable hybrid solution can be selected.
What is the maximum speed of this motor?
The maximum speed is 5000 rpm, while the nominal speed is 4500 rpm. This high-speed capability is suitable for applications requiring rapid motion.
Why Choose AutoDCSTech?
AutoDCSTech is a trusted supplier of industrial automation spare parts, offering genuine B&R products like the 8LSC53.ee045ff00-4. Our team provides expert technical support to help you select the right components for your application. We ensure fast delivery and competitive pricing, minimizing downtime and maximizing productivity.
Contact AutoDCSTech today to check availability and get a quote for the 8LSC53.ee045ff00-4. Our engineers are ready to assist with your motion control needs.
Looking for 8LSC53?
Browse genuine 8LSC53 units, specifications, and pricing — or request a quote from our automation specialists.
View 8LSC53 Products & Get a Quote →
