LSM75-21-602-M-2KA
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MPN: M.1302.1370
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The LSM75-21-602-M-2KA brushless servo motor delivers a peak torque of 8.8 Nm, a continuous torque of 2.36 Nm, a speed of 6000 RPM, and has a rotor moment of inertia of 0.000033 kg-m². Part of the LSM Brushless Servo Motors series by Kollmorgen, it features a steel shaft with a diameter of 11 mm and weighs 3.1 kg.
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Product Description:
The LSM75-21-602-M-2KA is a brushless servo motor that brings better torque control to advanced automation systems across multiple sectors. Manufactured by Kollmorgen, this brushless motor ensures torque precision and reliable operation under continuous duty. This motor has a stall current rating of 5.5 amps peak to ensure less power draw during non-rotational holding periods.
This brushless motor performs with a continuous torque rating of 2.36 Newton-meters. This torque rating is well suited for machines that require smooth and consistent torque delivery without losing performance due to thermal stresses. A high torque force of 8.8 Nm is provided by this servo motor for short-duration bursts to execute impact loading and quick acceleration movements. The rated working speed of 6000 revolutions per minute makes this brushless servo motor suitable for diverse operations requiring sustained high motor speeds. This motor has windings with 2.26 ohms of resistance between phases at a room temperature of 25°C, along with a 17.9 mH winding inductance that gives better power management and decreases the electronic disturbance. The LSM75-21-602-M-2KA brushless servo motor has a weight of 3.1 kilograms, and its rotor has 8 magnetic poles to ensure smoother torque output and less cogging.
The moment of inertia of 0.000033 kg-m² enables this servo motor to have high acceleration and deceleration, and enhances responsiveness in servo systems with frequent speed changes. This brushless motor provides efficient conversion of input current to mechanical torque by a constant torque having a value of 42 Nm/Amp, thus maximizing performance in systems with rigorous energy usage specifications. The voltage constant (KE) for this motor is 49 volts per 1000 rpm, which is a key parameter in ensuring stable back-EMF in high-speed applications and enabling precise velocity feedback in closed-loop controls.
Frequently Asked Questions about LSM75-21-602-M-2KA:
Q: Why does the LSM75-21-602-M-2KA use an 8-pole rotor design?
A: The 8-pole design improves torque smoothness and reduces torque ripple. This is crucial in applications needing high-precision and low-vibration movement.
Q: How does the 49 V/kRPM voltage constant affect servo performance?
A: A higher voltage constant like 49 V/kRPM allows better velocity feedback. This helps maintain speed accuracy at varying loads and speeds.
Q: What is the benefit of 17.9 mH inductance in LSM75-21-602-M-2KA?
A: Higher inductance smooths current flow and minimizes electrical noise. It improves performance in sensitive control loops and prevents overshoot.
Q: How does the 0.000033 kg-m² rotor inertia influence control response?
A: Low rotor inertia enables faster acceleration and deceleration. This ensures quicker response in high-speed servo positioning systems.
Q: Why is phase-to-phase resistance of 2.26 ohms important in this motor?
A: It helps determine heat generation and voltage drop across the windings. Stable resistance improves thermal performance and power efficiency.
