Brand:Allen Bradley PLC Item No.:MPL-B310P-MJ74AA Product Origin:USA Product Dimensions:Frame Size: 100 mm Product Weight:2.7 kg Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
The Allen Bradley MPL-B310P-MJ74AA Servo Motor is an MP-Series MPL low-inertia brushless AC rotary servo motor designed for high-performance industrial motion-control systems.
The motor features a 100 mm frame size and a 25.4 mm magnet stack, providing a compact mechanical package for automated machinery. Its 5000 RPM rating makes it suitable for equipment requiring relatively fast rotary motion and repeated speed changes.
A major feature of this configuration is the multi-turn high-resolution absolute encoder. The encoder provides feedback to the motion-control system, allowing the servo drive and controller to monitor motor position and regulate movement through closed-loop control.
The MPL-B310P-MJ74AA also includes a 24V DC holding brake. The brake can be useful when the machine requires the motor shaft to remain stationary when servo torque is removed. Vertical-axis applications are one example where this feature may be particularly valuable.
The motor's keyed shaft extension provides a suitable mechanical interface for compatible keyed couplings. During installation, correct shaft alignment is important because excessive misalignment can introduce unwanted mechanical loads and reduce the service life of connected components.
The right-angle SpeedTEC DIN connector can be rotated through 180 degrees, giving engineers additional flexibility when arranging motor cables. This feature can simplify installation in machinery where the available space around the motor is restricted.
The MPL-B310P-MJ74AA is intended to function as one part of a complete motion-control system. Proper selection of the servo drive, feedback interface, mechanical coupling, load, acceleration profile, and tuning parameters is essential for reliable operation.
For industrial automation users, the MPL-B310P-MJ74AA offers a practical combination of compact construction, high-speed operation, absolute multi-turn feedback, and 24V DC holding capability.
Technical Specifications
Parameter
Specification
Brand
Allen Bradley
Model
MPL-B310P-MJ74AA
Product Family
MP-Series MPL
Product Type
480V AC Rotary Servo Motor
Motor Type
Low-Inertia Brushless AC Servo Motor
Voltage
460 V AC
Voltage Class
400 V AC
Frame Size
100 mm
Magnet Stack Length
25.4 mm
Rated Speed
5000 RPM
Continuous Stall Torque
1.58 N·m
Rated Power
0.77 kW
Feedback
Multi-Turn High-Resolution Absolute Encoder
Feedback Technology
Hiperface
Shaft Configuration
Keyed Shaft Extension
Shaft Seal
No Shaft Seal
Connector
SpeedTEC DIN Connector
Connector Position
Right Angle
Connector Rotation
180° Rotatable
Brake
24V DC Holding Brake
Mounting
IEC Metric
Mounting Holes
Free Mounting Holes, Type FF
Weight
2.70 kg (5.95 lb)
The Allen Bradley MPL-B310P-MJ74AA has a 100 mm frame size and a listed weight of 2.70 kg (5.95 lb).
Its 25.4 mm magnet stack and 5000 RPM rating provide a compact high-speed servo configuration. The multi-turn absolute encoder and 24V DC holding brake are important features when evaluating this model for precision positioning and load-holding applications.
Before commissioning, users should verify the motor power wiring, encoder connection, brake circuit, servo-drive configuration, shaft coupling, mounting arrangement, and motion parameters.
For replacement applications, always compare the complete catalog number rather than selecting a motor based only on frame size. Similar MP-Series motors may differ substantially in feedback, shaft, brake, and connector configurations.
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These related models can be useful when comparing MP-Series servo motor configurations. The correct selection should be based on the required feedback, shaft arrangement, brake configuration, electrical characteristics, and compatible servo drive.
Popular Related Models
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When purchasing or replacing an Allen Bradley MPL-B310P-MJ74AA Servo Motor, verify the complete catalog number and compare the feedback system, keyed shaft, 24V DC brake, connector configuration, voltage, and mechanical mounting requirements with the existing motion-control system. This is the best way to avoid compatibility problems when working with MP-Series servo equipment.
Applications
The Allen Bradley MPL-B310P-MJ74AA Servo Motor is a low-inertia brushless AC rotary servo motor designed for industrial automation systems that require responsive motion, accurate positioning, and repeatable operation. With a 100 mm frame size, 25.4 mm magnet stack, 5000 RPM rated speed, absolute multi-turn feedback, and a 24V DC holding brake, this motor is well suited to demanding motion-control applications.
The MPL-B310P-MJ74AA can be used in packaging machinery, automated assembly equipment, electronic manufacturing systems, material handling equipment, converting machines, indexing systems, and other industrial machines where precise rotary motion is required.
In packaging applications, the motor can support repeated acceleration and deceleration while maintaining coordinated machine movement. Its low-inertia construction is particularly useful for high-cycle equipment where rapid changes in speed and direction are common.
For automated assembly systems, the absolute multi-turn encoder provides detailed position feedback to the motion-control system. This makes the motor suitable for applications where position information is an important part of the machine-control strategy.
The integrated 24V DC holding brake is another useful feature for applications where the motor shaft needs to remain stationary when the motor is not actively producing torque. This can be particularly valuable on vertical or mechanically loaded axes.
The MPL-B310P-MJ74AA can also be considered for maintenance and replacement applications involving existing Allen Bradley MP-Series motion systems. Because similar MPL motors can have different feedback, shaft, brake, and connector configurations, the complete catalog number should always be verified before replacement.
Advantages
The MPL-B310P-MJ74AA combines a compact 100 mm frame with a low-inertia servo motor design. This makes it a practical solution for machine builders who need responsive motion performance without using a large motor footprint.
One of its key characteristics is the 5000 RPM rated speed. The high-speed configuration gives machine designers additional flexibility when developing fast indexing, positioning, and rotary-motion applications.
The motor uses a multi-turn high-resolution absolute encoder for feedback. Absolute feedback provides position information to the servo system and can be especially useful in applications where accurate position tracking is required.
The 24V DC holding brake provides an additional mechanical holding function. This is valuable when the motor must maintain its position after the servo drive stops actively applying torque. The brake should be used according to the application's stopping and holding requirements rather than as a replacement for normal servo-controlled deceleration.
The motor features a keyed shaft extension, providing a defined mechanical connection for compatible couplings. Correct shaft alignment and suitable coupling selection are important for preventing excessive mechanical stress.
The SpeedTEC DIN connector uses a right-angle configuration and can be rotated 180 degrees. This provides useful flexibility for motor cable routing, especially when the motor is installed in compact machinery.
The motor uses IEC metric mounting with free mounting holes, Type FF. This makes it convenient to integrate into appropriately designed industrial machine structures.
For OEMs, system integrators, and maintenance teams, the MPL-B310P-MJ74AA provides a strong combination of high-speed operation, absolute feedback, compact construction, and integrated holding capability.
Technical FAQs
1. What type of servo motor is the MPL-B310P-MJ74AA?
The MPL-B310P-MJ74AA is an Allen Bradley MP-Series MPL low-inertia brushless AC rotary servo motor designed for closed-loop industrial motion-control applications.
2. What is the frame size of the MPL-B310P-MJ74AA?
The motor has a 100 mm frame size with a 25.4 mm magnet stack. This provides a compact configuration for industrial automation equipment.
3. What is the rated speed of this servo motor?
The MPL-B310P-MJ74AA is rated for 5000 RPM. Actual machine speed should be established according to the servo drive, load, duty cycle, mechanical system, and application requirements.
4. What type of encoder does the MPL-B310P-MJ74AA use?
The motor uses a multi-turn high-resolution absolute encoder. The feedback system provides position information to the compatible motion-control system.
5. Does the MPL-B310P-MJ74AA have a brake?
Yes. This model includes a 24V DC holding brake. The brake can be used to maintain the motor shaft position when the servo system is not actively driving the motor.
6. What should be checked if the motor does not move after installation?
Check the motor power wiring, servo-enable signal, drive status, feedback connection, alarm codes, control commands, and brake-release circuit. If the holding brake does not release correctly, the motor may remain mechanically locked.
7. What can cause an absolute encoder alarm?
Potential causes include incorrect drive configuration, damaged feedback cables, loose connectors, grounding problems, electrical interference, incorrect feedback parameters, or a problem with the encoder or servo drive.
8. Why is proper servo tuning important?
Servo tuning controls the relationship between the commanded movement and the motor's response. Incorrect tuning can result in vibration, overshoot, slow response, positioning errors, or unstable operation.
9. Can the MPL-B310P-MJ74AA replace another 100 mm servo motor?
Not necessarily. A 100 mm frame does not guarantee compatibility. Feedback type, shaft configuration, brake option, voltage, connector arrangement, motor characteristics, and servo-drive compatibility must all be compared.
10. What should be checked when the motor vibrates during operation?
Check the servo gain settings, mechanical coupling, mounting bolts, load inertia, machine resonance, acceleration and deceleration parameters, and encoder feedback. Both the electrical and mechanical sides of the system should be inspected.
