PMB31D-00216-00
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The PMB31D-00216-00 by Pacific Scientific is part of the PMB Brushless Servomotors series and features a NEMA Size 34 motor with flying leads and MS connectors. It delivers a peak torque of 6.26 Nm and a rated speed of 2,900 rpm @ 240vac. Weighing 2.5 kg, it ensures precise operations with its 4096 ppr encoder resolution.
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Product Description:
The PMB31D-00216-00 Brushless Motor runs at a rated speed of 6000 RPM, providing quick and precise movement in dynamic applications. Manufactured by Pacific Scientific, it supplies a continuous stall torque of 2.11 Nm for consistent torque output during continuous load conditions.
The PMB31D-00216-00 servo motor is built with a torque constant of 0.41 Nm/Arms, ensuring effective current-to-torque conversion and smooth power supply. This servo motor's inertia value is 0.137×10⁻³ kgm², which facilitates rapid acceleration and deceleration with low overshoot. In terms of feedback precision, this servo motor has an encoder resolution of 4096 PPR. This resolution allows for high-precision position detection and stable synchronization in automatic systems. The neodymium-iron-boron magnets are used by this motor for higher magnetic flux density and good torque performance, even at high speed. This motor’s line-to-line resistance of 2.0 Ohms guarantees optimal electrical performance with no energy loss. It also has a continuous stall current of 5.1 Arms that ensures regular operation without risking overheating. This servo motor has a nominal stall current of 5.4 Arms, which offers the capability to maintain higher torque for heavy-duty cycles.
This motor is designed to function under a rated voltage of 240 VAC or 320 VDC bus, providing flexibility in integration with other power systems. This brushless motor's 0.0124 Nm/kRPM viscous damping coefficient also adds stability to rotational movement at high speeds. This motor is built with 8 poles, providing an equal amount of torque and smoothness in operation. It is built with a construction type that has a rating of IP40, which shields the internal parts from small solid particles in controlled environments. The PMB31D-00216-00 brushless motor has a thermal time constant of 28 minutes to provide operational stability in long duty cycles.
Frequently Asked Questions about PMB31D-00216-00:
Q: How does the 8-pole design of the PMB31D-00216-00 enhance motor performance?
A: The 8-pole configuration improves torque smoothness and reduces cogging. This allows for consistent rotational dynamics, particularly important in precision automation tasks.
Q: Why is neodymium-iron-boron magnet material chosen for the PMB31D-00216-00?
A: Neodymium-iron-boron provides high magnetic energy density. This increases torque output while keeping the motor compact and efficient.
Q: What role does the 0.137×10⁻³ kgm² inertia of the PMB31D-00216-00 play in operation?
A: Low rotor inertia enables fast acceleration and deceleration. It also minimizes overshoot during rapid motion changes.
Q: How does the viscous damping coefficient of 0.0124 Nm/kRPM help the PMB31D-00216-00?
A: It reduces oscillations at higher speeds. This improves motion stability and prevents mechanical vibrations during continuous operation.
Q: What benefit does the 28-minute thermal time constant provide in the PMB31D-00216-00?
A: It allows the motor to withstand prolonged workloads without overheating. This improves durability during heavy-duty applications.
