Allen Bradley MPL-B310P-MK72AA Servo Motor

Applications

The Allen Bradley MPL-B310P-MK72AA 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, and multi-turn high-resolution absolute feedback, it is well suited to precision motion-control applications.

The motor can be used in automated assembly equipment, packaging machinery, material handling systems, printing and converting equipment, indexing machines, machine tools, and other production systems where controlled rotary movement is required.

In packaging and indexing applications, the MPL-B310P-MK72AA can support frequent acceleration and deceleration cycles. Its low-inertia design is particularly useful when the machine needs to change speed or direction quickly.

The multi-turn absolute encoder makes this model suitable for applications where reliable position feedback is important. It can be integrated into a complete motion-control architecture consisting of a compatible servo drive, motion controller, feedback system, and mechanical transmission.

The keyless shaft configuration is suitable for machinery designed around compatible shaft couplings. Engineers should verify the mechanical interface before installation to ensure that the coupling, shaft, and driven equipment are correctly matched.

For maintenance and replacement projects, the MPL-B310P-MK72AA is a practical option for suitable Allen Bradley MP-Series installations. Because similar MPL motors can have different shaft, feedback, connector, and brake configurations, the complete catalog number should always be checked before ordering.

Advantages

The MPL-B310P-MK72AA combines a 100 mm frame size with a low-inertia brushless servo design. This compact configuration makes it useful for machines where installation space is limited but responsive motion control is still required.

A key characteristic of this model is its 5000 RPM rated speed. The high-speed configuration provides flexibility for applications involving rapid rotary movement, frequent indexing, and short machine cycles.

The motor uses a multi-turn high-resolution absolute encoder. Absolute feedback gives the motion-control system detailed position information and is particularly useful in applications where accurate position tracking is required.

The MPL-B310P-MK72AA features a keyless shaft extension. This distinguishes it from keyed-shaft versions in the same product family and makes correct coupling selection especially important during installation.

Another useful feature is its SpeedTEC DIN connector, which uses a right-angle configuration and can be rotated 180 degrees. This allows greater flexibility when routing motor cables in compact machine assemblies.

The motor is configured with no mechanical brake. This can be advantageous in applications where a holding brake is unnecessary and the machine's mechanical system does not require the motor to maintain position after servo power is removed.

The IEC metric mounting arrangement with free mounting holes, Type FF, provides a practical mounting configuration for compatible machine structures.

For OEMs, system integrators, and industrial maintenance teams, the MPL-B310P-MK72AA offers a useful combination of compact construction, high-speed operation, absolute feedback, and low-inertia motion performance.

Technical FAQs

1. What type of servo motor is the MPL-B310P-MK72AA?

The MPL-B310P-MK72AA is a low-inertia brushless AC rotary servo motor from the Allen Bradley MP-Series MPL family. It is designed for closed-loop industrial motion-control applications.

2. What is the frame size of the MPL-B310P-MK72AA?

The motor has a 100 mm frame size and 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-MK72AA has a rated speed of 5000 RPM. Actual operating speed should be determined according to the servo drive, mechanical load, duty cycle, and machine requirements.

4. What feedback system does the motor use?

The motor uses a multi-turn high-resolution absolute encoder. This feedback system provides detailed position information for closed-loop servo operation.

5. Does the MPL-B310P-MK72AA have a mechanical brake?

No. This model is configured without a brake. If an application requires the shaft to remain mechanically held after servo power is removed, an appropriate external holding mechanism should be considered.

6. What type of shaft does the MPL-B310P-MK72AA use?

The motor uses a keyless shaft extension. The selected coupling should therefore be compatible with the motor's keyless shaft configuration and the mechanical requirements of the driven equipment.

7. What should be checked if an absolute encoder alarm occurs?

Inspect the feedback cable and connector, verify the drive configuration, check grounding and electrical noise conditions, and review the servo drive's diagnostic information. Incorrect feedback settings or damaged wiring can also cause encoder-related faults.

8. What can cause excessive vibration during operation?

Possible causes include incorrect servo tuning, mechanical resonance, excessive load inertia, shaft misalignment, coupling problems, loose mounting hardware, or feedback issues. Both mechanical and control parameters should be checked.

9. Can the MPL-B310P-MK72AA replace another 100 mm servo motor?

Not automatically. Frame size alone is not enough to determine compatibility. Feedback, shaft configuration, brake option, voltage, connector arrangement, speed, torque, and servo-drive compatibility should all be verified.

10. How should the motor be commissioned after installation?

Check mechanical mounting and shaft alignment first, then verify motor power wiring, feedback connections, drive parameters, enable signals, and motion limits. Start with conservative speed and acceleration settings before optimizing the servo tuning.