Product Description:

The S32HNNA-RNNM-00 is a 6-pole neodymium magnet brushless servo motor produced by Pacific Scientific within the S Brushless Motors series. It transforms electrical energy into controlled mechanical output for servo loops that require fast settling and accurate positioning. Intended for use in automated assembly stations, conveyors, or light machine tools, the motor fits the dimensional envelope used across its series for consistent installation. It pairs with a matched drive amplifier and resolver interface to receive velocity and position commands from a PLC.

Its electromagnetic output is anchored by a continuous stall torque of 4.0 Nm, ensuring load support without active cooling, while the available peak torque climbs to 11.3 Nm for short acceleration bursts. The H-coded windings present a torque constant of 0.7 Nm/ARMS, giving predictable torque per ampere for stable current control. Electrical dynamics are influenced by a line-to-line inductance of 4.5 mH, which helps filter switching harmonics, and a winding resistance of 1.6 Ohms, which contributes to copper losses during operation. Two laminated stacks in the stator increase slot area, and the six rare-earth poles help maintain output density at elevated speeds.

The rotor inertia is 0.34 kg·m² ×10⁻³, allowing rapid reversals without demanding excessive drive power, and the assembly weighs 4.9 kg, which supports use on moving axes. Mounting follows the NEMA 34 frame format, and power plus resolver leads exit through a motor-mounted MS connector for straightforward cabling. Feedback is provided by a size 21 frameless resolver, and there is no secondary feedback device. The design omits a holding brake and lacks a shaft seal, so external measures are required where static holding or liquid containment is important. A voltage constant of 0.44 VRMS/rad/sec describes the back-EMF behavior and suits the motor for use with commonly available 160–320 VDC servo drives.