Allen Bradley MPL-B420P-MJ72AA Servo Motor

Applications

The Allen-Bradley MPL-B420P-MJ72AA is an MP-Series servo motor designed for precision motion control in industrial automation systems. With a 115 mm frame size and a 4.3 kg weight, it is suitable for machine architectures where controlled acceleration, repeatable positioning, and reliable servo performance are important.

Typical applications include:

• Packaging and material handling equipment
• Automated assembly machines
• CNC and machine-tool systems
• Printing and converting equipment
• Robotics and pick-and-place machinery
• Semiconductor and electronic production equipment
• High-speed indexing systems
• General-purpose automated production lines

The motor can be integrated into a broader Allen-Bradley motion-control system with a compatible servo drive, controller, feedback arrangement, and mechanical transmission.

Advantages

Precision motion performance
The MPL-B420P-MJ72AA is intended for applications requiring accurate positioning and repeatable motor movement.

115 mm frame design
Its 115 mm frame size provides a practical balance between motor installation space and mechanical output requirements.

Industrial servo architecture
As part of the Allen-Bradley MP-Series family, the motor is designed for coordinated operation with industrial motion-control equipment.

Suitable for dynamic machine cycles
Servo motors are particularly useful where equipment repeatedly accelerates, decelerates, stops, and changes position.

Compact integration
The motor can be incorporated into automated machine axes where controlled motion and efficient mechanical integration are required.

Convenient replacement option
For maintenance and retrofit projects, the exact catalog number should be matched against the existing motor, drive, feedback configuration, and mechanical interface before replacement.

Technical FAQs

1. What type of product is the Allen-Bradley MPL-B420P-MJ72AA?
It is an Allen-Bradley MP-Series servo motor intended for industrial motion-control applications.

2. What is the frame size of the MPL-B420P-MJ72AA?
The motor has a 115 mm frame size.

3. What applications are suitable for this servo motor?
It can be used for automated machinery such as packaging equipment, assembly systems, material handling machines, machine tools, and other controlled-motion applications.

4. Can the MPL-B420P-MJ72AA be used for positioning applications?
Yes. Servo motors are commonly used in positioning systems where accurate and repeatable movement is required.

5. What should be considered when selecting a servo drive for this motor?
The drive should be matched to the motor's electrical characteristics, feedback system, required operating conditions, and overall motion-control architecture.

6. Why is feedback important in a servo system?
Feedback provides the motion controller or servo drive with information about motor operation, allowing the system to regulate position, speed, and motion more accurately.

7. Is the MPL-B420P-MJ72AA suitable for repeated acceleration and deceleration?
Servo motors are designed for dynamic motion profiles, making them suitable for machines with frequent starts, stops, positioning movements, and speed changes when the complete system is properly sized.

8. What should be checked before replacing an existing MPL-Series motor?
Verify the complete catalog number, motor frame, mechanical mounting arrangement, shaft/interface requirements, feedback configuration, and compatibility with the installed servo drive.

9. What problems can affect servo motor operation?
Common system-level problems include incorrect motor or drive configuration, feedback faults, wiring problems, mechanical overload, excessive acceleration demands, and inadequate tuning.

10. What is important during commissioning?
Correct motor identification, wiring, feedback verification, drive configuration, mechanical inspection, and controlled test operation should be completed before placing the machine into normal production.