Product Description:

The M-205-B-23 is a brushless servo motor produced by Kollmorgen within the M Goldline Servo Motors series. In automated machinery, the unit supplies closed-loop rotary motion. It provides position control for indexing tables, pick-and-place arms, and packaging axes that require repeatable speed and torque. Brushless construction also supports accurate commutation with a matching servo drive and reduces wear associated with brushed motor designs.

The motor can hold a continuous load of 4.47 N-m at stall while drawing a steady winding current of 5.3 A RMS. This combination shows the continuous torque available at zero speed and the RMS current required for steady holding duty. For short acceleration bursts, the drive may deliver 13.8 N-m while the terminals see a peak line current of 17.2 A RMS, so conductors and protection must be sized for this higher intermittent demand. Application power is rated at 1.6 kW, indicating the mechanical power that can be transferred to the load under nominal thermal conditions. Torque sensitivity is 0.85 N-m per ampere, which links commanded current to produced torque and supports current-mode control.

Dynamic operation reaches a speed of 3600 RPM, letting the axis track moderate-speed profiles without exceeding a back EMF of 51.2 VRMS/kRPM. A rotor inertia of 0.001143 kg-m² offers a balance between fast acceleration and stable velocity regulation when coupled to mid-range load inertias. The phase windings present an inductance of 38 mH, so the drive must account for the motor's electrical response when selecting PWM switching behavior and current-loop tuning. Heat is removed through the housing with a thermal resistance of 0.73 °C/W. The 20-minute thermal time constant shows that frame temperature rises gradually during brief overload periods rather than changing instantly.