PMB33E-10216-03
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The PMB33E-10216-03 is a NEMA Size 34 brushless servomotor with a rated speed of 3000 rpm. Manufactured by Pacific Scientific as part of the PMB Brushless Servomotors series, it supports 240 VAC/320 VDC operation. With a continuous stall torque of 4.9 Nm and a peak stall torque of 9.7 Nm, it ensures high performance.
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Product Description:
The Pacific Scientific's PMB33E-10216-03 Brushless Servo Motor is constructed using a NEMA Size 34 frame, giving a compact but robust housing. This motor has a round shaft type, giving smooth mechanical transfer of output and the ability to work with a variety of load couplings.
The PMB33E-10216-03 motor uses neodymium-iron-boron magnets, providing high magnetic flux strength and allowing for higher torque density. Its performance specifications include a rated speed of 3000 RPM, enabling rapid response in automation applications. Its 0.93 Nm/Arms (RMS) torque constant ensures effective torque production per unit current supplied. This servo motor incorporates a digital encoder with commutation, making precise position and velocity feedback possible. This encoder system provides safe synchronization between the motor and drive electronics and enables high-precision motion control. The PMB33E-10216-03 motor delivers a consistent stall torque of 5.42 Nm, which keeps torque delivery steady under constant load operation. This motor’s design supports a continuous stall current of 5.8 Arms and a nominal stall current of 7.4 Arms to handle rigorous operating cycles without heating. Its mechanical performance is also assured by an inertia value of 0.404x10-3 kgm², enabling controlled acceleration and braking, particularly in usage involving frequent start-stop situations.
The viscous damping coefficient of 0.038 Nm/kRPM ensures this PMB33E-10216-03 motor’s stable movement by reducing unwanted vibrations and oscillations upon operation. This motor’s electrical design specifications also incorporate a winding resistance of 2.2 Ohms to promote power efficiency and heat control. This servo motor has an operating voltage of 240V AC, with a maximum supported DC bus voltage of 320V, for ease of integration into contemporary servo drive systems. The thermal capability of this motor is also emphasized through a thermal response time of 32 minutes to provide stable operation under extended operating cycles.
Frequently Asked Questions about PMB33E-10216-03:
Q: Why are neodymium-iron-boron magnets used in the PMB33E-10216-03?
A: These magnets produce stronger magnetic flux compared to ferrite types. This results in higher torque density and reduced motor size for the same performance.
Q: How does the digital encoder in PMB33E-10216-03 improve motion control accuracy?
A: The encoder provides real-time position and velocity feedback, ensuring synchronization with the drive. This allows the motor to maintain precision in dynamic applications.
Q: How does the low inertia of 0.404 × 10⁻³ kgm² benefit this servomotor?
A: The low inertia allows rapid acceleration and deceleration. This is particularly useful in pick-and-place and robotics applications requiring frequent directional changes.
Q: Why is a torque constant of 0.93 Nm/Arms important in PMB33E-10216-03?
A: A higher torque constant ensures efficient torque output per unit current. This minimizes power losses and improves overall system efficiency.
Q: How does the viscous damping coefficient affect mechanical stability?
A: The damping coefficient reduces unwanted oscillations during motion. This contributes to smoother performance in precision automation systems.
