A4.SM.000-6200 KEB
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The KEB A4.SM.000-6200 is a synchronous servo motor from the SM Synchronous Servo Motors series and has a rated power of 500 W and rated speed of 6000 rpm. It features a 2-pole resolver encoder type, with a rated torque of 0.8 Nm and maximum torque of 5.0 Nm. The motor has a rated current of 2.9 A, operates at 230 V, and weighs 1.8 kilograms.
Internal Product Review
A4.SM.000-6200 is a KEB synchronous servo motor tuned for precise motion control, with 500 W rated power at 6000 rpm. The 2-pole resolver feedback and 5.0 Nm max torque support stable response in demanding servo applications. A strong choice for automation axes requiring accurate and efficient performance.
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Product Description:
The A4.SM.000-6200 is a synchronous servo motor produced by KEB within the SM Synchronous Servo Motors series. This compact unit integrates into closed-loop drive axes where fast positioning and repeatable velocity are necessary for automated assembly, packaging, material handling, and similar machinery. Its two-pole resolver supplies rotor angle feedback to the controller, enabling high-bandwidth current loops and precise torque generation during dynamic moves across demanding production cycles.
Under continuous operation, the motor delivers a rated mechanical output of 500 W at a shaft speed of 6000 rpm. Corresponding rated torque is 0.8 Nm, produced while the stator draws 2.9 A from a three-phase supply stabilized at 230 V. This operating point indicates the heat that the 170 mm long stator stack can dissipate without forced cooling during normal duty. A rotor inertia of 0.45 kg cm² helps keep acceleration times short while reducing speed ripple under load. The resolver’s electrical zero aligns with the windings so the commutation offset remains fixed during operation.
During acceleration bursts, the electromagnetic circuit can withstand a maximum torque of 5.0 Nm while phase current peaks at 17.0 A. For static holding conditions, the motor sustains 1.0 Nm of stall torque with a steady 3.2 A rms, offering position retention for vertical axes. A voltage constant of 28.3 V/1000 rpm indicates the back EMF that the inverter must overcome during regeneration, and a winding resistance of 3.3 Ω sets copper loss at each load point. Magnetic flux linkage and current rise time are influenced by a winding inductance of 2.7 mH, which is important for drive filter design. The laminated core, resolver, and aluminum housing bring the total weight to 1.8 kg, allowing installation on lightweight gantries without excessive mass at the moving joint.
