Product Description:

The S32GNNA-RNNM-00 is a 6-pole Neodymium magnet brushless servo motor manufactured by Pacific Scientific for the S Brushless Motors series. Built around a NEMA-frame housing, this unit is intended for precision positioning and velocity control on automated axes, robots, and material-handling stages where rapid response and repeatable motion are required. Position feedback is provided solely by the embedded size-21 frameless resolver.

The drive section is organized as a two-stack winding set, identified as winding type G, that delivers a continuous stall torque of 4.0 Nm; this is the torque available indefinitely without overheating when the shaft is locked. During acceleration or shock loads, the motor sustains a peak torque of 11.3 Nm, which is the short-term torque limit. Electromagnetic conversion efficiency is characterized by a torque constant of 1.3 Nm/ARMS, so each ampere of sinusoidal phase current yields that amount of torque. The copper windings present a line-to-line resistance of 6.2 Ω, which contributes to thermal I²R dissipation, while a line-to-line inductance of 18.0 mH influences current ripple and the current-loop bandwidth required from the drive amplifier.

The mechanical package weighs 4.9 kg and carries a rotor inertia of 0.34×10⁻³ kg·m², giving the axis moderate dynamic stiffness without excessive drive power. A voltage constant of 0.82 VRMS/rad/s relates back EMF to speed for commutation. Mounting follows the NEMA 34 standard, simplifying interchange with gearheads or brackets that share this bolt circle. Connection to the drive is through a motor-mounted MS connector; there is no shaft seal, no integral holding brake, and no secondary feedback device, so external measures are required where contamination protection or power-off holding are critical.