Product Description:

Pacific Scientific manufactures the P22NSXD-LNN-NS-02, a member of the POWERMAX II P Motors series. This standard-construction, two-phase stepper motor fits the NEMA 23 frame and uses a receptacle for quick electrical connection. Because the encoder option has no feedback, position is inferred from commanded step counts, making the unit suitable for open-loop indexing, small pick-and-place axes, and light tooling slides in industrial automation. Its NEMA mounting pattern allows installation on common 23-frame mounting points.

The motor has a step increment of 1.8 degrees, producing 200 discrete positions per revolution with a step accuracy of ±1.5 %. Its holding torque is 1.43 N·m, while detent torque is limited to 0.049 N·m so microstepping motion remains smooth. With windings wired in parallel, the motor draws 2.5 A per phase and has a phase inductance of 6.2 mH, which balances response speed with current demand. Two internal stacks and the D winding code shape the magnetic circuit, and the dielectric system uses Class B insulation rated at 130 °C with a 340 Vdc withstand voltage and 100 Megohms minimum resistance.

The housing length is 78.7 mm, and the overall width is 57.15 mm, giving the motor a compact form that weighs 1.13 kg. A single smooth shaft with a diameter of 6.35 mm simplifies coupler selection, and the standard rotor has a reflected inertia of 0.0000252 kg·m² so acceleration ramps can remain short. The mounting style follows the NEMA convention, and electrical connection is made through the receptacle. Continuous service is permitted from -20 °C to +40 °C without derating, provided airflow keeps the frame within the Class B temperature rise limits of the insulation system.