Product Description:

The S24HNNA-RNNM-00 is a 6-pole neodymium magnet brushless servo motor produced by Pacific Scientific within the S Brushless Motors series. Classified under the internal model code S24, it is built for closed-loop positioning and speed regulation tasks across automated machinery. The motor follows the NEMA frame mounting convention, which helps it fit common mounting patterns while maintaining high power density in a compact body. By combining rare-earth magnets with electronic commutation, the unit delivers repeatable torque for pick-and-place heads, indexing tables, and other industrial servo axes. This brushless design also supports smooth low-speed operation and reduces wear associated with contact-based commutation.

Its continuous output capacity is represented by a 1.6 Nm stall torque, allowing the axis to hold static loads without overheating. During rapid acceleration events, the motor can reach 4.94 Nm of peak torque to overcome inertia for short intervals. Torque production scales with current at 0.3 Nm/ARMS, which gives the drive a predictable relationship between commanded current and shaft output. The three-phase winding has 2.2 mH of line-to-line inductance and 1.8 Ohms of resistance, which influence current rise and copper loss in the coils. A 0.19 VRMS/rad/sec voltage constant supports resolver-based speed feedback, and the H winding type identifies the winding variant used in this motor. The size 21 frameless resolver provides rotor position feedback, while the motor has no holding brake and no secondary feedback device. Because a holding brake is not included, any static load retention must come from drive torque or external mechanical means.

The physical package follows the NEMA 23 outline, simplifying alignment with gearheads and standard mounting flanges in motion platforms. A rotor inertia of 0.100 × 10⁻³ kg·m² supports quick acceleration while helping the servo loop maintain stable speed control, and the assembly weighs 2.7 kg to limit added load on moving structures. Cable entry uses a motor-mounted MS connector, which keeps power and feedback wiring consolidated at the rear of the frame. Heat is dissipated through the housing, and no shaft seal is installed. The 4-stack construction keeps the motor compact without increasing the overall envelope.