Product Description:

The S24GNNA-RNNM-00 is a brushless servo motor produced by Pacific Scientific within the S Brushless Motors series. As a 6-pole Neodymium magnet unit, it supplies tightly regulated rotary motion for coordinated axes in packaging, pick-and-place, and textile equipment. The motor carries the S24 model designation and is delivered without a holding brake, so external mechanics or drive torque must secure a stopped load when power is removed. A size 21 frameless resolver mounted on the rotor provides primary position feedback to the drive, and no secondary feedback channel is installed.

The torque profile starts with a continuous stall capability of 1.6 Nm, allowing the shaft to hold static loads without overheating, and rises to a peak of 4.94 Nm for short acceleration bursts. Electrical characteristics are shaped by a phase-to-phase inductance of 9.3 mH that filters current ripple and by a line-to-line resistance of 6.8 Ω, which determines steady-state copper loss. The frame conforms to the NEMA 23 standard, so it mates with widely available gearheads and mounts. Inside, G-type windings arranged in a four-stack stator cooperate with the six-pole rotor to sustain smooth torque production, while a motor-mounted MS connector routes power and resolver leads without requiring a junction box.

Mechanical inertia is kept low with a rotor value of 0.100 ×10⁻³ kg·m², supporting rapid reversals without burdening the amplifier. The housing mass of 2.7 kg spreads heat yet remains light enough for sliding axes. A torque constant of 0.6 Nm/ARMS pairs with a voltage constant of 0.38 VRMS /rad /s, indicating electromechanical behavior that suits 120–160 V class drives. Because there is no shaft seal, the motor should be installed in clean environments, and the NEMA mounting interface keeps alignment repeatable across machines.