Pacific Scientific P21NRXS-LNS-NS-03 POWERMAX II 1.8° Stepper Motor 1.16 VDC

HAS A APPROXIMATELY 0.245” DIAMETER SHAFT

The Pacific Scientific P21NRXS-LNS-NS-03 POWERMAX II is a 1.8° stepper motor from the POWERMAX II series by Pacific Scientific. This series is designed for high-performance applications where precise control of movement is required. These stepper motors are often used in automation, robotics, and other precision motion control systems.

Here are the key features and specifications of the P21NRXS-LNS-NS-03 POWERMAX II Stepper Motor:

Key Features and Specifications:

1. Motor Type:

   • 1.8° Stepper Motor: The 1.8° step angle indicates that the motor moves in 1.8-degree increments per step. This provides a high level of precision (200 steps per revolution) without needing an encoder, making it ideal for applications requiring high accuracy in position control.
   • POWERMAX II Series: This series is known for offering high torque and efficiency in a compact design. The POWERMAX II motors are designed for reliable performance in demanding environments, with enhanced thermal management.

2. Operating Voltage:

   • 1.16 VDC: The motor operates at a relatively low voltage of 1.16 VDC. This voltage level helps to minimize heat generation and improve energy efficiency. Low-voltage stepper motors are commonly used for applications where energy savings and thermal performance are important.

3. Current Rating:

   • The motor is designed to provide high torque at low current, which makes it well-suited for driving applications where power consumption and heat dissipation are critical factors. The exact current rating would depend on the specific configuration of the motor and system.

4. Step Angle:

   • The 1.8° step angle ensures that each step the motor takes corresponds to 1.8° of rotation. This translates to 200 steps per revolution, giving the motor a high degree of positioning accuracy. This makes it a popular choice in motion control systems requiring precise incremental movements.

5. Torque and Performance:

   • High Holding Torque: The stepper motor is designed to deliver high holding torque, meaning it can resist external forces that might try to move its shaft when it is stationary. This makes it ideal for applications like CNC machinery or robotics where precise holding is required.
   • Speed Control: Stepper motors are naturally suited for applications requiring controlled speed and position. The motor can be controlled through pulses, and its speed is proportional to the frequency of those pulses.

6. Feedback Type:

   • LNS (Linear Feedback): The LNS designation suggests that the motor is designed with linear feedback, which is important for ensuring that the motor’s position is accurately tracked over time, reducing errors in positioning.
   • NS (Non-Shielded): The NS suffix likely indicates that the motor is non-shielded, meaning it does not have additional electromagnetic shielding. This may make it more suitable for specific applications where additional shielding is not necessary or for environments where electromagnetic interference (EMI) is less of a concern.

7. Mechanical and Electrical Construction:

   • Compact Design: The motor is compact and rugged, designed to operate in confined spaces while maintaining high performance.
   • Shaft and Mounting: The motor features a shaft design that is compatible with standard mounting techniques and mechanical coupling systems used in stepper motor applications.

Applications:

• Robotics: The precision and accuracy of the P21NRXS-LNS-NS-03 make it ideal for use in robotic arms, actuators, and other robotic systems that require precise positioning and movement control.
• CNC Machines: Used in CNC machinery where fine control of position, speed, and torque is needed for tasks like cutting, drilling, or milling.
• Automated Assembly Systems: Perfect for systems that require synchronized, precise movements for tasks like part placement, assembly, or packaging.
• Medical Devices: Used in medical equipment for applications requiring precise movement, such as in surgical instruments or diagnostic machines.
• 3D Printers: Stepper motors are commonly used in 3D printers due to their ability to accurately control the movement of the print head and build platform.

Benefits:

• Precision Control: The 1.8° step angle allows for precise control of position and speed, ensuring high accuracy in applications like robotics and automation.
• Efficient Power Consumption: With a low operating voltage of 1.16 VDC, the motor offers energy efficiency, which can reduce operating costs and heat generation, making it suitable for energy-conscious systems.
• High Reliability: The POWERMAX II series is known for its ruggedness and long-lasting performance in challenging environments.
• No Need for Encoders: Stepper motors like the P21NRXS do not require external encoders for position feedback, simplifying the control system design and reducing cost.
• Simple Drive Control: The motor operates with step and direction signals, which simplifies the system design and control compared to more complex systems like DC motors.

Considerations:

• Need for Driver/Controller: Like all stepper motors, the P21NRXS-LNS-NS-03 requires a stepper motor driver or controller to function. The driver controls the current to the motor windings and determines the step sequence.
• Speed vs. Torque: Stepper motors provide high torque at low speeds but their torque decreases as speed increases. It’s important to match the motor’s capabilities with the specific application requirements.

Conclusion:

The Pacific Scientific P21NRXS-LNS-NS-03 POWERMAX II 1.8° Stepper Motor offers an excellent combination of precision, energy efficiency, and reliability for a wide range of motion control applications. Whether you are working in automation, robotics, or any application requiring precise and controlled movement, this stepper motor provides a robust solution for achieving accurate and repeatable results.