Why the 8LSA57.ee022ff00-4 Delivers Cost-Efficient Motion
In modern manufacturing, every axis must balance performance with operating costs. The B&R 8LSA57.ee022ff00-4 three-phase synchronous servo motor addresses this challenge directly. Its permanent-magnet, electronically commutated design delivers high dynamics and positioning precision while keeping energy consumption in check. For engineers evaluating motion components, this motor offers a compelling mix of capability and long-term value.
The motor's large overload capacity means it can handle peak demands without oversizing. This reduces both initial investment and ongoing energy costs. Additionally, the embedded parameter chip enables automatic drive identification, simplifying setup and reducing commissioning time. These features translate into lower total cost of ownership across the machine's lifecycle.
Key Specifications That Drive Efficiency
The 8LSA57.ee022ff00-4 is rated for a nominal speed of 2200 rpm and a nominal torque of 23.0 Nm. Its nominal power of 5299 W and nominal current of 10.4 A indicate a robust yet efficient profile. The stall torque of 29.0 Nm and stall current of 13.1 A provide strong starting performance, while the maximum torque of 90.0 Nm and maximum current of 55.6 A ensure rapid acceleration when needed.
With a torque constant of 2.22 Nm/A and a voltage constant of 134.04 V/1000rpm, the motor offers predictable torque control. The stator resistance of 0.560 Ohm and inductance of 8.1 mH contribute to stable operation. The electrical time constant of 14.4 ms and thermal time constant of 45 min indicate responsive yet thermally stable behavior, supporting continuous duty in demanding cycles.
The motor's moment of inertia of 20.9 kg·cm² and mass of 16.00 kg (without brake) reflect a compact, lightweight design. This reduces the structural load on machinery and can lower mounting costs. The optional brake, with a holding torque of 27 Nm and an additional mass of 3.50 kg, adds safety without compromising performance.
Cost Impact of High Dynamics and Precision
High dynamic response directly affects cycle times. The 8LSA57.ee022ff00-4's maximum speed of 5000 rpm and high overload capacity allow faster moves and shorter settling times. This increases machine throughput, which lowers the cost per part produced. The reduced cogging and optimized torque rippling improve controllability, leading to better surface finish and fewer rejected parts.
Positioning precision is another cost driver. The motor supports encoders for functional safety, enabling accurate position feedback. This reduces scrap and rework, especially in applications like pick-and-place or CNC machining. The embedded parameter chip also minimizes setup errors, cutting commissioning time and associated labor costs.
Application Scenarios: Where the 8LSA57.ee022ff00-4 Excels
In packaging machinery, the motor's compact size and high dynamics allow for faster indexing and reduced downtime. Its IP64 protection (IP65 with optional oil seal) makes it suitable for washdown environments, reducing maintenance costs. The self-cooled design eliminates the need for external fans, lowering energy consumption and noise.
In material handling systems, the motor's high overload capacity handles variable loads without stalling. This reduces the risk of jams and improves overall system reliability. The optional brake provides safe holding on vertical axes, enhancing operator safety and preventing load drops.
For robotics, the slim & elongated design fits into tight spaces, enabling more compact robot arms. The reduced weight lowers the inertia of moving parts, improving energy efficiency and reducing actuator size. This can lead to significant cost savings in multi-axis systems.
Compatibility and Integration
The 8LSA57.ee022ff00-4 is designed to work with B&R ACOPOS servo drives, specifically the 017X series. This pairing ensures optimal performance and simplifies system integration. The motor offers resolver or EnDat encoder feedback options, including versions for functional safety. The built-in plug-in connectors (including swivel and SpeedTec types) allow quick and secure wiring, reducing installation time.
For single-cable applications, a hybrid solution is available, combining power and feedback in one cable. This reduces cabling costs and simplifies cable management. The motor's compliance with UL and CSA standards (UL file E360421) and conformity with EU directives (Low Voltage 2014/35/EU, EMC 2014/30/EU, RoHS 2011/65/EU) ensure broad market acceptance.
Real-World Application Example
Consider a typical bottling line where the 8LSA57.ee022ff00-4 drives a labeling station. The motor's high dynamics allow precise label placement at high speeds, reducing waste. Its IP65 rating (with oil seal) withstands occasional washdowns, minimizing downtime. The embedded parameter chip enables quick drive setup, so changeovers are faster, increasing overall equipment effectiveness.
Frequently Asked Questions
What is the maximum speed of the 8LSA57.ee022ff00-4?
The maximum speed is 5000 rpm. This high-speed capability supports rapid motion profiles, which can shorten cycle times and boost productivity. However, the permissible speed may depend on the connected drive and application conditions.
Does the motor support functional safety?
Yes, the motor can be equipped with encoders that support functional safety for safety-related position measurement. However, the safe torque off (STO) function is implemented by the connected ACOPOS servo drive, not by the motor itself. This integration allows for a safety-rated system when properly configured.
What cooling method does the 8LSA57.ee022ff00-4 use?
The motor is self-cooled with free-circulation surface cooling (IC4A0A0). This design eliminates the need for external fans, reducing energy consumption and maintenance. It also keeps the motor quieter, which is beneficial in noise-sensitive environments.
What is the holding torque of the optional brake?
The optional brake provides a holding torque of 27 Nm. This is sufficient for many vertical-axis applications, ensuring the load stays in place when power is removed. The brake adds 3.50 kg to the motor mass and increases the moment of inertia by 9.5 kg·cm².
Why Choose AutoDCSTech for Your Automation Needs
AutoDCSTech specializes in supplying industrial automation spare parts, including the B&R 8LSA57.ee022ff00-4. We understand the importance of reliable components for your production lines. Our team can assist with product selection and availability, helping you minimize downtime. Contact us today to discuss your requirements and get a competitive quote.
Please verify current lifecycle status and availability with AutoDCSTech before ordering.
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