8LWA13.B9045D000-0
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The 8LWA13.B9045D000-0 servo motor comes with a worm gearbox, delivers an output torque of 18 Nm, has a motor power of 0.09 kW (90 Watts), and operates at an output speed of 13 rpm. Part of the 8LWA High Torque Servo Motors series by B & R Automation, it features IP55 protection and operates on a 3-phase voltage of 400 V.
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Product Description:
The 8LWA13.B9045D000-0 High Torque Servo Motor, B & R Automation company’s product, is constructed to provide controlled torque and high-speed usage in industrial automation systems.
The electrical performance of the 8LWA13.B9045D000-0 motor is complemented by a stator resistance of 44.47 ohms, which helps manage heat and smooth current flow under extended operation. The inductance of this motor’s stator is 45.6 millihenries, which helps ensure a stable rise time of the current and electromagnetic balance under switching operations. Having a nominal rating of 148 W, this servo motor provides power-efficient performance with sustained load operation. The nominal speed of this motor is 4500 rpm, and it has good rotation capabilities during medium or high speed driving. As high as 1 Nm is its maximal torque rating, which means that this servo motor is able to withstand temporary increases in loads and peak torque demands in case of occasional bursts of high-intensity usage. This motor has an internal structure with 4 pole pairs that offer better symmetry of magnetic fields, acceptable smooth rotation, and a low level of torque ripple.
This motor has a voltage constant of 33.52 V/1000 rpm to allow precise speed control, which is essential to close-tolerance servo systems. A stall torque of 0.36 Nm from this motor provides accurate holding capability with zero-speed positioning applications. This servo motor has a torque constant of 0.55 Nm/A, which is a good basis for accurate torque generation directly proportional to the input current. This motor’s electrical time constant is 1 millisecond to provide instant response to control signals and enhance the reaction time. The thermal performance of the 8LWA13.B9045D000-0 is characterized by a thermal response time of 13 minutes, providing prolonged operation prior to thermal saturation.
Frequently Asked Questions about 8LWA13.B9045D000-0:
Q: Why does the 8LWA13.B9045D000-0 use a torque constant of 0.55 Nm/A?
A: This helps ensure linear torque output with respect to current input. It enables predictable and precise motor response in closed-loop systems.
Q: How does the 45.6 mH stator inductance benefit motor operation?
A: Higher inductance stabilizes current transitions during switching. It helps reduce electrical noise and enhances signal integrity in servo applications.
Q: Why is the 1 ms electrical time constant important in 8LWA13.B9045D000-0?
A: It enables the motor to react quickly to input changes. This is crucial for high-speed applications requiring rapid acceleration and deceleration.
Q: What advantage does a 13-minute thermal time constant provide?
A: It allows the motor to operate longer before reaching critical temperature. This improves reliability in thermally demanding environments.
Q: How does 0.03 kgcm² moment of inertia impact motor performance?
A: Lower inertia allows for faster directional changes. This results in improved responsiveness and better dynamic control.
