P22NRXD-LNN-NS-00 Pacific Scientific
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The Pacific Scientific P22NRXD-LNN-NS-00 is a stepper motor from the POWERMAX II P Motors series with a NEMA 23 frame size and standard construction. This motor features a nominal holding torque of 1.43 N-m, operates with a parallel current of 2.5 A per phase, and is rated with an insulation class B up to 130°C. It has a step angle of 1.8 degrees, 200 steps per revolution, and a smooth, single shaft configuration with a diameter of 6.35 mm.
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Product Description:
The P22NRXD-LNN-NS-00 is a hybrid stepper motor produced by Pacific Scientific within the POWERMAX II P Motors series. Designed for closed-loop motion sequences in small-to-medium automation axes, it converts pulse trains from controllers into discrete mechanical steps. This ability lets conveyors, dispensers, and indexing tables reach commanded positions accurately, giving equipment builders a straightforward rotary actuator for positioning duties.
The motor employs a two-stack rotor and stator system that corresponds to winding code D. In the recommended parallel connection, the drive must supply 2.5 A per phase, and the copper path presents a phase resistance of 1.22 Ω with an inductance of 6.2 mH. This electrical profile allows rapid current rise and keeps mid-band resonance low. At standstill, the motor can resist external load with a nominal holding torque of 1.43 N-m, while the inherent detent torque is only 0.049 N-m, so step loss risk is minimized during idle states. Motion is organized into 200 full steps per revolution, with each step separated by a 1.8 degrees increment. The design omits an internal encoder, so feedback must be provided externally if required.
Mechanically, the POWERMAX housing follows the NEMA 23 frame outline, and the mounting style follows the NEMA convention. The laminated core is standard construction, and a standard rotor contributes to a rotor inertia of 0.0000252 kg·m², supporting fast acceleration without excessive load on the drive. A single smooth shaft with a 6.35 mm diameter and 20.57 mm extension fits couplings directly, and the overall unit length is 78.7 mm. The motor has an IP23 enclosure and operates in ambient temperatures from -20 °C to +40 °C, with a maximum surface temperature of 95 °C. Class B insulation rated to 130 °C, a 100 MΩ insulation resistance, and a 340 Vdc dielectric withstand support winding durability. Regular leadwires terminate in a receptacle for quick field replacement, and the 1.13 kg mass simplifies gantry or slide installation.
Frequently Asked Questions about P22NRXD-LNN-NS-00:
Q: What is the nominal holding torque of the P22NRXD-LNN-NS-00 motor?
A: The P22NRXD-LNN-NS-00 features a nominal holding torque of 1.43 N-m, making it suitable for medium torque applications.
Q: What step angle and steps per revolution does the P22NRXD-LNN-NS-00 provide?
A: This model offers a step angle of 1.8 degrees, resulting in 200 steps per revolution for fine positioning control.
Q: What are the specific shaft dimensions and configuration of the P22NRXD-LNN-NS-00?
A: The shaft on the P22NRXD-LNN-NS-00 is 6.35 mm in diameter, has a length of 20.57 mm, and is smooth with no modifications.
Q: What is the insulation class and maximum surface temperature for the P22NRXD-LNN-NS-00?
A: The insulation class is rated as Class B (130°C), and the maximum surface temperature can reach up to 95°C during operation.
Q: What are the parallel phase current and resistance values for the P22NRXD-LNN-NS-00 motor?
A: This motor operates at a parallel phase current of 2.5 A and features a parallel resistance of 1.22 Ω.
