8LSA36.R2045D000-3
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The 8LSA36.R2045D000-3 is an AC Servo Motor delivering a rated power of 2.0 kW and a rated speed of 4500 rpm. Manufactured by B & R Automation as part of the 8LS Synchronous Motors series, this motor features IP65 protection. Additional highlights include a 4.5 Nm rated torque and rotatable connectors for versatile installation.
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Product Description:
B & R Automation designs the 8LSA36.R2045D000-3 three-phase synchronous motor as a part of the 8LS series, that operates on 400 V AC source. It offers a nominal speed of 4500 RPM and consumes 1037 W of power along with a current of 2.3 A. This motor meets EMC compliance and its rating achieves IP65 category when equipped with an optional oil seal.
The 8LSA36.R2045D000-3 motor uses a resolver feedback system and features a self-cooling mechanism to maintain ambient temperature. It possesses a built-in size 1 connector for electrical wiring that requires a cable of 0.75 mm square cross-section. The motor has a stall current of 3.1 A and its maximum current reaches 13.3 A in overload conditions. The 8LS motor generates a nominal turn effect of 2.2 Nm and a peak torque of 12 Nm. The emf constant of the motor is 58.64 V/1000 rpm and its constant torque is 0.97 Nm/A. This motor supports a holding brake of weight 1.07 kg, that operates on 24 VDC and possess 0.38 kgxcm^2 as a moment of inertia. The brake has a holding torque of 4 Nm and it utilizes a steady rated current of 0.75 A. The 8LS motor has maximum operatable winding temperature of 311 degrees F and it works in a non-condensing ambient humidity range of 5% to 95%.
The 8LSA36.R2045D000-3 motor features an angular inertia of 1.15 kgxcm^2 and its electrical time constant is 5.5 ms. This motor has a thermal dissipation value of 36 minutes and possess a stator inductance of 20.3 mH. It has a vibration severity of level A and its speeding capability goes up to 9000 RPM. The 8LS motor provides a flange mounting configuration and weighs 5 kg on its own.
Frequently Asked Questions about 8LSA36.R2045D000-3:
Q: Why is resolver feedback used in the 8LSA36.R2045D000-3 instead of optical encoders?
A: Resolver feedback provides analog absolute position sensing and operates reliably in high-temperature and high-vibration environments where optical encoders would degrade.
Q: What is the functional advantage of a 5.5 ms electrical time constant in servo response?
A: A lower electrical time constant enables quicker current rise, enhancing dynamic torque response and reducing lag in closed-loop servo control systems.
Q: How does the 20.3 mH stator inductance influence the motor's filtering capability?
A: The inductance acts as an inherent low-pass filter, suppressing high-frequency ripple currents, which minimizes torque ripple and EMI generation during PWM operation.
Q: What operational benefit does the 0.9 kgxcm^2 angular inertia offer in this model?
A: This inertia value provides optimal mechanical damping for light-to-medium load couplings, ensuring fast yet stable acceleration profiles in point-to-point motion.
Q: Why is 87.96 V/1000 rpm emf constant advantageous in servo motor tuning?
A: This back EMF constant aligns with standard 400V AC drive architectures, facilitating precise velocity control while maintaining motor-drive compatibility and voltage headroom.
