LSM165-221-454-S-0KA Kollmorgen
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MPN: M.1302.1233
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The Kollmorgen LSM165-221-454-S-0KA is part of the LSM Brushless Servo Motors series and operates at a voltage of 460 V with a speed of 4500 RPM. This servo motor delivers a continuous torque of 25 Nm and a peak torque of 100 Nm, with a maximum current of 134.4 A. It features a high-resolution Sin/Cos feedback type and has a net weight of 21.0 kg.
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Product Description:
The LSM165-221-454-S-0KA is a brushless servo motor produced by Kollmorgen as part of the LSM Brushless Servo Motors series. Designed for positioning and velocity control in automated machinery, the unit converts electrical power from 460 V drive systems into regulated mechanical torque. It is suitable for machine axes that require rapid acceleration, accurate speed regulation, and repeatable positioning under changing loads. High-resolution sine/cosine feedback supports precise closed-loop control, while the absence of an internal brake reduces the motor’s mass and rotational load.
At a maximum rated speed of 4500 rpm, the motor can support rapid indexing or continuous conveyor operation without exceeding its intended speed range. Its continuous torque output of 25 Nm indicates the steady load it can drive while remaining within thermal limits. With a torque constant of 0.91 Nm/A, commanded drive current produces a proportional amount of torque at the shaft, supporting predictable current-based control. The back electromotive force constant is 109 V/kRPM, which establishes how generated voltage rises with rotor speed. During acceleration, the motor phases can draw a maximum current of 134.4 A peak, an important consideration when selecting compatible power cables and drive components. The keyway shaft provides positive engagement with rigid couplings, pulleys, or gearboxes in applications where resistance to shaft slippage is required.
Short bursts of 100 Nm peak torque allow the axis to overcome static friction and accelerate demanding loads. A stall current of 30.3 A peak indicates the maximum current associated with producing torque while the shaft is stationary. Electrical response is influenced by a phase inductance of 3.6 mH and a phase resistance of 0.33 ohm, allowing the drive to calculate voltage requirements during rapid reversals and current changes. The eight-pole rotor has an inertia of 0.00165 kg-m², supporting predictable acceleration and deceleration profiles when the motor is matched to the connected load. With a net weight of 21.0 kg, the housing provides a stable mounting platform for industrial machinery operating across the motor’s available speed and torque range.
