PMB33C-20116-00
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The Pacific Scientific PMB33C-20116-00 is part of the PMB Brushless Servomotors series and features NEMA Size 34 dimensions with a digital encoder for commutation. It delivers a continuous stall torque of 5.42 Nm and a peak torque of 16.10 Nm. The motor weighs 6.3 kg, making it robust and versatile for various applications.
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Product Description:
The Brushless Servo Motor PMB33C-20116-00, engineered by Pacific Scientific, has a rated stall current of 3.8 Arms, accommodating high torque development during stall without burning out. This motor offers a maximum torque of 16.1 Nm, capable of delivering high torque performance ideal for load-bearing applications demanding stable rotational force.
This motor’s continuous stall amperage is 2.9 Arms, which makes it efficient for continuous operation under continuous load without reducing lifespan. The torque factor of this motor is 1.86 Nm/Arms, which provides stable torque generation per ampere of supply current. The PMB33C-20116-00 motor is suitable to operate under ambient conditions of 0 to 40 °C to guarantee a consistent operation in mid-level temperature ranges. This motor employs a neodymium iron boron magnet for high magnetic flux density, which leads to enhanced performance with no increase in motor size. The back EMF constant of this motor is 117 Vrms/kRPM which permits effective voltage feedback in closed-loop control systems that facilitates improved precision of motion. The viscous damping coefficient of this motor is 0.038 Nm/kRPM to reduce mechanical oscillations and facilitate smooth velocity control. Its maximum static friction is 0.169 Nm to enable low-resistance startup and minimize energy loss during low-speed operation.
It has a nominal supply of 240V AC and a maximum DC bus voltage of 320V to allow safe and stable handling of voltages during operation. This motor has a thermal impedance of 0.78 o C/Watt, providing proper dissipation of heat as well as maintaining internal temperatures constant under extended operations. This motor’s inertia is 0.404 kgm² x 10⁻³ to assure accurate speed and position control, particularly suited for applications that demand a fast response. The overall mass of the PMB33C-20116-00 motor is 6.3 kg, which makes it appropriate for mounting in fixed industrial applications or large equipment structures.
Frequently Asked Questions about PMB33C-20116-00:
Q: How does the 0.78 °C/Watt thermal impedance benefit continuous operations?
A: It enables effective heat dissipation under load, maintaining stable performance. This reduces the risk of thermal shutdown during long operating cycles.
Q: Why is neodymium iron boron used in the PMB33C-20116-00 magnet system?
A: Neodymium iron boron provides high magnetic strength in a compact form. This improves torque output without increasing motor dimensions.
Q: What role does the 0.038 Nm/kRPM viscous damping coefficient play?
A: It helps reduce overshooting in servo loops. This improves response smoothness and system stability.
Q: How does the 117 Vrms/kRPM back EMF constant assist in closed-loop control?
A: It provides predictable voltage feedback during motor rotation. This enhances accuracy in servo positioning systems.
Q: Why is 0.169 Nm static friction important in PMB33C-20116-00?
A: It ensures low resistance at startup. This is ideal for applications requiring rapid starts and stops.
