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The Allen-Bradley MPL-B580F-MJ72AA is a high-performance low-inertia brushless AC servo motor from the MP-Series MPL family. It is designed for demanding motion-control applications where fast acceleration, accurate positioning, high torque density, and reliable continuous operation are important.
This motor uses a 460 V AC-class electrical design, a 165 mm frame size, and a 203.2 mm magnet-stack length. It is rated for a nominal speed of 3000 RPM and is equipped with a multi-turn high-resolution absolute encoder for accurate position feedback.
The motor uses a keyed shaft extension, making it suitable for conventional mechanical power transmission arrangements such as couplings, pulleys, gears, and other machine-drive components.
Another important feature is the SpeedTEC DIN connector. The connector is right-angle and can be rotated through 180 degrees, which gives machine builders more flexibility when routing motor cables in compact equipment.
The standard configuration of the MPL-B580F-MJ72AA is without a holding brake. This makes it particularly suitable for applications where the load does not need to be mechanically held after servo power is removed, or where the machine uses another method of load retention.
The motor is part of the low-inertia MPL family, which emphasizes a favorable torque-to-size ratio and rapid dynamic response. This makes the motor especially useful in machines with frequent acceleration and deceleration cycles.
| Parameter | Specification |
|---|---|
| Brand | Allen-Bradley |
| Product Family | MP-Series |
| Product Series | MPL Low-Inertia Brushless Servo Motors |
| Model | MPL-B580F-MJ72AA |
| Product Type | Rotary Servo Motor |
| Motor Technology | Brushless AC Permanent-Magnet Servo Motor |
| Voltage Class | 460 V AC |
| Frame Size | 165 mm / 6.50 in |
| Magnet Stack Length | 203.2 mm / 8.0 in |
| Rated Speed | 3000 RPM |
| Continuous Stall Torque | Approximately 34.0 N·m class |
| Peak Torque | High dynamic peak-torque capability; application-dependent |
| Feedback | Multi-turn high-resolution absolute encoder |
| Shaft | Keyed shaft extension |
| Brake | No brake |
| Connector | SpeedTEC DIN connector |
| Connector Orientation | Right-angle, 180° rotatable |
| Mounting | IEC metric mounting |
| Mounting Holes | Free mounting holes, Type FF configuration |
| Protection | IP50 minimum configuration; higher protection is possible with suitable sealing arrangements |
| Weight | 25.4 kg |
| Frame Dimension | 165 mm |
| Magnet Stack Dimension | 203.2 mm |
| Overall Housing Dimensions | Configuration/mechanical drawing dependent |
| Parameter | MPL-B580F-MJ72AA |
|---|---|
| Motor Type | Brushless AC Servo Motor |
| Voltage | 460 V AC |
| Rated Speed | 3000 RPM |
| Continuous Stall Torque | Approx. 34.0 N·m |
| Feedback | Multi-turn high-resolution absolute encoder |
| Brake | No brake |
| Motor Frame | 165 mm |
| Magnet Stack | 203.2 mm |
| Weight | 25.4 kg |
| Dimension Reference | 165 mm frame × 203.2 mm magnet stack |
| Motor Construction | Permanent-magnet synchronous servo motor |
| Servo Function | Closed-loop speed, torque, and position control |
| Rotor Design | Low-inertia servo rotor |
| Feedback Function | Absolute multi-turn position feedback |
| Dynamic Response | Designed for rapid acceleration/deceleration |
| Torque Density | High torque output relative to motor size |
The 3000 RPM rating places this motor in a useful range for general industrial servo applications. It provides enough speed for many indexing, positioning, material-handling, packaging, and machine-tool operations while maintaining substantial torque capability.
The approximately 34.0 N·m continuous stall torque class gives the motor considerable load-handling capability. The actual usable operating torque should always be evaluated together with the duty cycle, acceleration profile, ambient conditions, drive settings, and mechanical transmission.
| Parameter | Specification |
|---|---|
| Frame Size | 165 mm |
| Magnet Stack Length | 203.2 mm |
| Shaft Configuration | Keyed shaft extension |
| Brake | No brake |
| Mounting Standard | IEC Metric |
| Mounting Type | Flange mounting |
| Connector | SpeedTEC DIN |
| Connector Position | Right angle |
| Connector Rotation | 180° rotatable |
| Environmental Protection | IP50 minimum configuration |
| Weight | 25.4 kg |
| Frame Dimension | 165 mm |
| Stack Dimension | 203.2 mm |
| Overall Motor Dimensions | Refer to the mechanical configuration/drawing |
The 165 mm frame gives the motor a relatively substantial mechanical footprint compared with smaller servo motors. The 203.2 mm magnet stack provides additional active motor length and contributes to the higher torque capability of this model.
The keyed shaft is useful for applications where positive mechanical torque transmission is required. It is particularly convenient when used with compatible keyed couplings, pulleys, gears, or other rotating machine components.
The absence of a standard holding brake reduces the mechanical complexity of the motor and can also be advantageous when the machine does not require brake holding.
The model number MPL-B580F-MJ72AA contains information about the motor’s configuration.
| Model Section | Meaning |
|---|---|
| MPL | MPL low-inertia servo motor family |
| B | 460 V class configuration |
| 5 | 165 mm frame class |
| 80 | 203.2 mm magnet-stack length |
| F | 3000 RPM class |
| M | Multi-turn high-resolution absolute feedback |
| J | Keyed shaft configuration |
| 7 | SpeedTEC DIN connector configuration |
| 2 | No-brake configuration |
| AA | Configuration/version identifier |
This coding structure is useful when comparing the MPL-B580F-MJ72AA with other motors in the same family. Several models may share the same frame and stack dimensions while differing in speed, feedback type, shaft style, brake configuration, or connector arrangement.
The MPL-B580F-MJ72AA is designed around the requirements of modern industrial servo systems.
Unlike a conventional induction motor used mainly for constant-speed operation, a servo motor is intended to work as part of a closed-loop motion-control system. The motor continuously works with the servo drive and feedback device to control position, speed, and torque.
The multi-turn absolute encoder is particularly important in applications where the controller needs reliable position information over multiple mechanical revolutions.
The low-inertia rotor is another major feature. Lower rotor inertia allows the servo system to change speed more quickly because the drive does not need to overcome as much rotational inertia during acceleration and deceleration.
This characteristic is valuable in machines that repeatedly move between positions, perform indexing operations, or change speed rapidly.
The motor’s relatively high torque capability combined with its low-inertia design gives the MPL-B580F-MJ72AA a useful balance between power density and dynamic response.
One of the most important advantages of the MPL-B580F-MJ72AA is its low-inertia rotor design.
Lower rotor inertia can help the motor accelerate and decelerate rapidly. In practical machine operation, this can result in shorter positioning times and better response during repeated motion cycles.
This is especially useful for indexing machines, packaging equipment, material-handling systems, and other equipment where the motor frequently starts, stops, and reverses.
The 165 mm frame and 203.2 mm magnet-stack configuration provide substantial torque capability without requiring an excessively complicated motor arrangement.
A higher torque-to-size ratio can help machine designers obtain the required mechanical output without using an even larger motor.
This can be useful when machine space is limited or when the motor must be integrated into an existing mechanical structure.
The multi-turn high-resolution absolute encoder provides detailed position feedback.
This is valuable in applications where the control system needs accurate knowledge of motor position across multiple revolutions.
Absolute feedback can also simplify machine operation because the controller can obtain meaningful position information without relying solely on a conventional incremental counting approach.
The keyed shaft extension provides a conventional mechanical connection method.
It is suitable for many types of mechanical transmission, including:
The keyed shaft is particularly useful where positive torque transmission is preferred.
The right-angle SpeedTEC DIN connector can be rotated through 180 degrees.
This is useful when designing compact machinery because the cable exit direction can be adjusted to suit the available installation space.
Good cable routing is especially important in servo systems because power and feedback cables must be installed in a way that minimizes mechanical stress and helps maintain reliable signal performance.
The MPL-B580F-MJ72AA is configured without a brake.
For machines that do not need mechanical holding after power removal, the no-brake configuration can provide a simpler mechanical arrangement.
It can also be suitable for horizontal-axis applications where the load is not prone to falling or moving when servo power is removed.
For vertical axes or gravity-loaded mechanisms, a braking solution should be evaluated carefully.
The motor is designed for integration into industrial motion-control systems.
Its combination of permanent-magnet motor technology, closed-loop feedback, low rotor inertia, and high torque density makes it suitable for demanding repetitive motion applications.
The MPL-B580F-MJ72AA can be used in many industrial motion-control applications.
Packaging equipment frequently requires fast and repeatable movement.
The motor can be used for:
The low-inertia design is especially useful when the machine needs frequent acceleration and deceleration.
Material-handling equipment often requires controlled movement rather than simple continuous rotation.
Typical uses include:
The multi-turn absolute feedback can be useful where accurate position information is important.
Servo motors are widely used in machine tools because accurate speed and position control are essential.
Potential applications include:
The motor’s 3000 RPM class operating speed provides a practical balance between speed and torque.
Printing and converting machinery often requires coordinated movement between multiple axes.
Applications can include:
In these machines, stable feedback and fast dynamic response are important.
Automated assembly systems often require repeated positioning with high consistency.
The motor can be considered for:
The motor can also be used in certain industrial robotic or robotic-like mechanisms where its torque and feedback characteristics match the axis requirements.
The exact suitability depends on the axis inertia, load, speed, acceleration, duty cycle, gearbox ratio, and required positioning accuracy.
The MPL-B580F-MJ72AA is normally used as one part of a complete servo system.
A typical system can include:
The servo drive supplies controlled electrical power to the motor while processing the encoder feedback.
The controller determines the required motion profile, and the drive regulates motor torque and speed to follow the command.
The mechanical transmission then transfers the motor output to the machine.
Because the MPL-B580F-MJ72AA is a relatively high-capacity servo motor, the complete system should be sized as a complete motion chain rather than selecting the motor based only on rated torque.
| Parameter | Specification |
|---|---|
| Minimum Protection | IP50 |
| Enhanced Protection | IP66 possible with suitable shaft sealing and environmentally sealed cable arrangement |
| Minimum Operating Temperature | 0 °C class |
| Maximum Operating Temperature | 40 °C class |
| Storage Temperature Range | Approximately -30 °C to +70 °C class |
| Relative Humidity | Approximately 5–95% RH class |
| Weight | 25.4 kg |
| Frame Dimension | 165 mm |
| Magnet Stack | 203.2 mm |
Environmental protection should be considered together with cable connectors, shaft sealing, installation orientation, machine enclosure, and contamination level.
The basic motor configuration should not automatically be treated as suitable for harsh washdown environments. Where higher environmental protection is required, the appropriate sealing and cable arrangement should be used.
The mechanical mounting surface should be rigid enough to support the motor and resist vibration.
The motor should be mounted so that the shaft remains properly aligned with the driven equipment.
Misalignment can increase bearing loading and can create unwanted vibration.
When a coupling is used, the coupling should be selected according to the motor’s torque, speed, shaft geometry, and allowable misalignment.
Cable routing is also important. Servo power and feedback cables should be routed carefully and protected from excessive bending, crushing, heat, or mechanical abrasion.
The connector should not be used as a structural support point for the cable.
The MPL-B580F-MJ72AA is intended for industrial service, but proper installation and operating conditions remain important for long-term reliability.
Regular inspection should focus on:
A sudden increase in motor temperature can indicate excessive load, poor ventilation, incorrect tuning, mechanical binding, or an unsuitable duty cycle.
Likewise, repeated following-error faults may be caused by mechanical problems rather than the motor itself.
When selecting the MPL-B580F-MJ72AA for an application, the following factors should be checked:
The required continuous and peak torque should be calculated from the actual machine load.
The motor inertia and reflected load inertia should be evaluated together.
The complete motion profile should be checked rather than looking only at maximum speed.
Peak acceleration can have a major influence on required motor torque.
Frequent high-torque operation may produce significantly more heat than steady operation.
Vertical axes require special consideration because a no-brake motor does not mechanically hold the load after power is removed.
Gearboxes, belts, pulleys, lead screws, and couplings all influence reflected inertia and torque requirements.
Temperature, dust, moisture, vibration, and chemical exposure should all be considered.
The following models are useful comparison choices within the same MPL family or closely related B580/B560 configurations.
| Model | Main Configuration | Speed / Feedback | Shaft | Brake | Frame / Stack | Weight / Dimension Reference |
|---|---|---|---|---|---|---|
| MPL-B580F-MJ72AA | Reference model | 3000 RPM, multi-turn absolute | Keyed | No brake | 165 mm / 203.2 mm | 25.4 kg; 165 mm × 203.2 mm stack |
| MPL-B580F-MJ74AA | B580F alternative | 3000 RPM, multi-turn absolute | Keyed | Brake configuration | 165 mm / 203.2 mm | Approx. 29 kg; 165 mm × 203.2 mm stack |
| MPL-B580J-MJ72AA | Higher-speed B580 variant | 3750 RPM, multi-turn absolute | Keyed | No brake | 165 mm / 203.2 mm | Configuration-dependent; 165 mm × 203.2 mm stack |
| MPL-B560F-MJ72AA | Shorter-stack related model | 3000 RPM, multi-turn absolute | Keyed | No brake | 165 mm / 152.4 mm | Configuration-dependent; 165 mm × 152.4 mm stack |
| MPL-B560F-MJ74AA | Shorter-stack brake version | 3000 RPM, multi-turn absolute | Keyed | Brake configuration | 165 mm / 152.4 mm | Configuration-dependent; 165 mm × 152.4 mm stack |
The MPL-B580F-MJ72AA is the main reference point when high torque capability and a 3000 RPM operating class are required.
The MPL-B580F-MJ74AA is particularly relevant when a holding-brake configuration is required.
The MPL-B580J-MJ72AA is useful when the application requires a higher speed than the 3000 RPM class.
The MPL-B560F-MJ72AA has a shorter magnet stack and can be considered when the machine requires a more compact motor configuration.
The MPL-B560F-MJ74AA combines the shorter stack with a brake-oriented configuration, making it useful for applications where both packaging and load holding need to be considered.
| Model | Speed | Feedback | Shaft | Brake | Stack Length | Weight | Dimension Reference |
|---|---|---|---|---|---|---|---|
| MPL-B580F-MJ72AA | 3000 RPM | Multi-turn absolute | Keyed | No | 203.2 mm | 25.4 kg | 165 mm frame × 203.2 mm stack |
| MPL-B580F-MJ74AA | 3000 RPM | Multi-turn absolute | Keyed | Yes/configured | 203.2 mm | Approx. 29 kg | 165 mm frame × 203.2 mm stack |
| MPL-B580J-MJ72AA | 3750 RPM | Multi-turn absolute | Keyed | No | 203.2 mm | Configuration-dependent | 165 mm frame × 203.2 mm stack |
| MPL-B560F-MJ72AA | 3000 RPM | Multi-turn absolute | Keyed | No | 152.4 mm | Configuration-dependent | 165 mm frame × 152.4 mm stack |
| MPL-B560F-MJ74AA | 3000 RPM | Multi-turn absolute | Keyed | Yes/configured | 152.4 mm | Configuration-dependent | 165 mm frame × 152.4 mm stack |
The following models are useful choices when building a broader selection list of servo and motion-control products from the same brand.
| Model | Product Category | Main Parameter | Feedback / Function | Brake | Dimension / Frame | Weight |
|---|---|---|---|---|---|---|
| MPL-B580F-MJ72AA | MPL Servo Motor | 3000 RPM, approx. 34.0 N·m class | Multi-turn absolute | No | 165 mm frame / 203.2 mm stack | 25.4 kg |
| MPL-B580F-MJ74AA | MPL Servo Motor | 3000 RPM, approx. 34.0 N·m class | Multi-turn absolute | Yes/configured | 165 mm frame / 203.2 mm stack | Approx. 29 kg |
| MPL-B580J-MJ72AA | MPL Servo Motor | 3750 RPM class | Multi-turn absolute | No | 165 mm frame / 203.2 mm stack | Configuration-dependent |
| MPL-B560F-SJ74AA | MPL Servo Motor | 3000 RPM class | Single-turn feedback configuration | 24 V DC brake configuration | 165 mm frame / 152.4 mm stack | Configuration-dependent |
| MPL-B560F-SK74AA | MPL Servo Motor | 3000 RPM class | Single-turn feedback configuration | 24 V DC brake configuration | 165 mm frame / 152.4 mm stack | Configuration-dependent |
These models cover several important combinations of motor speed, stack length, feedback arrangement, shaft configuration, and brake configuration.
For a direct comparison with the MPL-B580F-MJ72AA, the B580F family is generally the most relevant starting point because it maintains the same 165 mm frame and 203.2 mm magnet-stack class.
One of the most useful distinctions is the difference in magnet-stack length.
The B580F uses a 203.2 mm magnet stack, while the B560F uses a 152.4 mm magnet stack.
This difference affects the motor’s overall active length and torque capability.
| Feature | B560F Class | B580F Class |
|---|---|---|
| Frame Size | 165 mm | 165 mm |
| Magnet Stack | 152.4 mm | 203.2 mm |
| Typical Speed Class | 3000 RPM | 3000 RPM |
| Torque Capability | Lower class | Higher class |
| Motor Length | Shorter | Longer |
| Space Requirement | Lower | Higher |
| Typical Selection | More compact applications | Higher torque applications |
| Weight | Configuration-dependent | 25.4 kg for MJ72AA |
If the machine has limited motor space and the required torque is moderate, a B560F model may be more appropriate.
If the machine requires greater continuous torque and has sufficient mounting space, the B580F configuration becomes more attractive.
The multi-turn absolute encoder is one of the important characteristics of the MPL-B580F-MJ72AA.
A servo system needs reliable feedback to determine the actual motor position.
The encoder provides the drive and motion controller with position information so that the system can correct the motor’s movement and maintain the commanded trajectory.
The multi-turn capability is especially useful for mechanisms that rotate through several revolutions rather than operating within a single mechanical turn.
Examples include:
The keyed shaft configuration is another important selection factor.
A keyed shaft uses a mechanical key to transmit torque between the shaft and the connected component.
This is a familiar industrial mechanical arrangement and is widely used with compatible couplings, gears, pulleys, and other transmission components.
A keyless shaft configuration, by comparison, can be preferable in some applications where smooth shaft surfaces or particular coupling systems are desired.
For the MPL-B580F-MJ72AA, the keyed shaft is part of the standard model configuration.
The MPL-B580F-MJ72AA has no standard holding brake.
This is not necessarily a disadvantage.
A no-brake servo motor can be the correct choice for horizontal axes, rotary mechanisms, conveyors, and other systems where mechanical holding is not required after servo power is removed.
However, vertical applications require more careful analysis.
If the load can fall or move under gravity, a suitable holding mechanism or brake arrangement may be required.
The important point is that the motor should be selected according to the machine’s safety and mechanical requirements rather than simply choosing the highest-torque model.
The SpeedTEC DIN connector is designed for flexible industrial installation.
The right-angle configuration helps reduce the space needed behind the motor.
The connector can also be rotated, allowing the cable exit direction to be adjusted.
This is particularly useful in compact machines where a straight connector would interfere with guards, frames, cable tracks, or adjacent components.
Cable selection should match the motor, drive, feedback arrangement, connector configuration, and installation environment.
From a machine-builder’s perspective, the MPL-B580F-MJ72AA offers several useful characteristics.
The approximately 34.0 N·m continuous stall torque class makes the motor suitable for demanding motion axes.
The speed is suitable for many general-purpose industrial servo applications.
This provides a strong feedback solution for applications requiring multi-revolution position information.
The low-inertia design supports rapid dynamic response.
The keyed shaft works well with conventional industrial mechanical transmission systems.
The rotatable right-angle connector simplifies machine integration.
The substantial frame provides a solid mechanical platform for higher-output servo applications.
The long active stack supports the motor’s higher torque capability.
| Machine Type | Typical Servo Function | Suitability |
|---|---|---|
| Packaging Machine | Indexing, feeding, cutting | Excellent |
| Conveyor System | Positioning and synchronization | Excellent |
| Printing Equipment | Roller control and registration | Very good |
| Material Handling | Transfer and positioning | Very good |
| Assembly Machine | Indexing and positioning | Excellent |
| Machine Tool | Feed and auxiliary axis | Very good |
| Converting Machine | Web handling and cutting | Excellent |
| Automated Production Line | Coordinated motion | Excellent |
| Rotary Indexing Machine | Positioning and indexing | Excellent |
| Pick-and-Place System | High-speed positioning | Very good |
The actual selection should always be confirmed by calculating torque, inertia, speed, acceleration, duty cycle, and thermal loading.
| Item | Assessment |
|---|---|
| Torque Capability | High |
| Speed Capability | 3000 RPM class |
| Dynamic Response | Very good |
| Position Feedback | High-resolution multi-turn absolute |
| Mechanical Connection | Keyed shaft |
| Connector Flexibility | Very good |
| Brake | Not included in this configuration |
| Motor Size | Large 165 mm frame |
| Stack Length | Long 203.2 mm |
| Weight | 25.4 kg |
| Compactness | Moderate |
| High-Torque Applications | Excellent |
| Rapid Positioning | Excellent |
| Vertical Axis Without Additional Holding | Not recommended without suitable load-holding provisions |
The Allen-Bradley MPL-B580F-MJ72AA is a substantial industrial servo motor designed for applications that require a combination of high torque, accurate feedback, and responsive motion control.
Its 165 mm frame, 203.2 mm magnet stack, 3000 RPM operating class, multi-turn high-resolution absolute encoder, and keyed shaft make it a strong candidate for medium-to-high performance industrial motion applications.
The low-inertia rotor is particularly useful when the machine needs fast acceleration and deceleration. Instead of focusing only on maximum torque, the motor’s dynamic characteristics make it well suited to machines where motion cycles repeat frequently.
The 25.4 kg weight also reflects the physical scale of the motor. This should be considered during machine-frame design, especially where the motor is mounted on a moving axis.
The no-brake configuration is appropriate for many horizontal or rotary applications, but vertical loads should be evaluated carefully.
Overall, this model is best suited to applications where a large-frame, high-torque, 3000 RPM-class servo motor with multi-turn absolute feedback is required.
| Parameter | Value |
|---|---|
| Brand | Allen-Bradley |
| Series | MP-Series MPL |
| Model | MPL-B580F-MJ72AA |
| Motor Type | Low-Inertia Brushless AC Servo Motor |
| Voltage | 460 V AC |
| Frame | 165 mm / 6.50 in |
| Magnet Stack | 203.2 mm / 8.0 in |
| Speed | 3000 RPM |
| Continuous Stall Torque | Approx. 34.0 N·m |
| Feedback | Multi-turn high-resolution absolute encoder |
| Shaft | Keyed |
| Brake | No brake |
| Connector | SpeedTEC DIN, right-angle |
| Connector Adjustment | 180° rotatable |
| Mounting | IEC Metric |
| Protection | IP50 minimum configuration |
| Weight | 25.4 kg |
| Main Advantage | High torque with low-inertia dynamic response |
| Typical Applications | Packaging, material handling, automation, indexing, machine tools, printing, converting |
The MPL-B580F-MJ72AA is a strong choice when the application calls for a 3000 RPM servo motor with approximately 34.0 N·m continuous torque capability, multi-turn absolute feedback, a keyed shaft, and a 165 mm × 203.2 mm motor configuration.
For a higher-speed requirement, the MPL-B580J-MJ72AA is worth considering.
For an application that needs mechanical holding, the MPL-B580F-MJ74AA is a more appropriate comparison.
For a shorter motor configuration, the MPL-B560F family is worth evaluating.
For general machine design, the most important selection factors remain torque, peak torque, speed, reflected inertia, acceleration, duty cycle, ambient temperature, mounting space, and whether a holding brake is required.
The MPL-B580F-MJ72AA is therefore best viewed as a high-torque, low-inertia, 3000 RPM-class industrial servo motor for demanding closed-loop motion-control applications, rather than simply as a general-purpose electric motor.