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MPL-B560F-MJ72AA Low-Inertia Servo Motor – Complete Product Guide

1. Product Overview

The MPL-B560F-MJ72AA is a high-performance low-inertia rotary servo motor designed for industrial motion-control systems that require strong continuous torque, high dynamic response, accurate positioning, and dependable operation under demanding production conditions.

This model belongs to the MPL low-inertia servo motor family and uses a 460 V configuration, a 165 mm Frame 5 structure, and a 152.4 mm magnet stack. It is rated for 3000 rpm and provides approximately 26.8 N·m of continuous torque, with a peak torque capability of approximately 67.8 N·m.

The MJ72AA configuration is particularly notable because it combines a multi-turn high-resolution absolute encoder, a keyed shaft, and no integral brake.

This combination makes the motor suitable for machines that require multi-turn position information but do not need a motor-mounted holding brake.

The motor uses a SpeedTEC DIN right-angle connector that can be rotated through 180 degrees. This arrangement provides useful flexibility when the motor is installed inside a compact machine or where cable routing space is limited.

2. Brand

Brand: Allen-Bradley

The MPL-B560F-MJ72AA belongs to the Allen-Bradley MP-Series family of industrial servo motors.

For procurement, maintenance, and replacement work, the complete catalog number is important because the suffix identifies the feedback arrangement, shaft configuration, connector arrangement, and brake configuration.

The MJ72AA designation therefore represents a very specific motor configuration rather than simply a general B560F motor.

3. Product Series

Product Series: MP-Series MPL Low-Inertia Servo Motors

Motor Type: Low-inertia brushless rotary servo motor

Voltage Class: 400 V AC class

Armature Voltage: 460 V

Frame Size: Frame 5 / 165 mm

Magnet Stack: 60 / 152.4 mm

Rated Speed: 3000 rpm

The MPL series is intended for applications where servo response, torque density, positioning accuracy, and rapid acceleration are more important than the characteristics of a conventional constant-speed industrial motor.

The B560F configuration sits above the B540K in continuous torque capability. The B560F provides approximately 26.8 N·m continuous torque and 67.8 N·m peak torque, making it suitable for heavier mechanical loads while retaining a relatively high 3000 rpm operating speed.

4. Complete Model Identification

The catalog number MPL-B560F-MJ72AA can be understood as a combination of electrical, mechanical, speed, feedback, connector, and brake options.

Model Code	Configuration
MPL-B560F-MJ72AA	Complete catalog number
MPL	Low-inertia servo motor family
B	460 V configuration
5	Frame 5, 165 mm
60	152.4 mm magnet stack
F	3000 rpm speed class
M	Multi-turn high-resolution absolute encoder
J	Keyed shaft extension
7	SpeedTEC DIN right-angle connector
2	No integral brake
AA	Standard configuration

The exact model selection data confirms the 460 V configuration, 165 mm frame, 152.4 mm magnet stack, 3000 rpm speed, multi-turn high-resolution absolute feedback, keyed shaft, SpeedTEC DIN right-angle connector, and no brake.

5. Main Technical Parameters

Parameter	Specification
Model	MPL-B560F-MJ72AA
Brand	Allen-Bradley
Product Series	MP-Series MPL Low Inertia
Product Type	Rotary servo motor
Motor Construction	Low-inertia brushless servo motor
Voltage Class	400 V AC
Armature Voltage	460 V
Rated Speed	3000 rpm
Maximum Speed	3000 rpm
Rated Continuous Power	5.5 kW
Continuous Torque	26.8 N·m
Peak Torque	67.8 N·m
Frame Size	165 mm
Frame Reference	Frame 5
Magnet Stack	152.4 mm
Stack Reference	60
Feedback	Multi-turn high-resolution absolute encoder
Feedback Resolution	Sin/Cos, 1024 cycles/rev
Feedback Protocol	Hiperface
Shaft	Keyed shaft extension
Brake	No integral brake
Connector	SpeedTEC DIN
Connector Style	Right-angle
Connector Rotation	180° rotatable
Mounting	Metric flange mount
Mounting Holes	Free mounting holes, Type FF
Shaft Seal	No
Rotor Inertia	Approx. 0.00213 kg·m² for the B560F family
Maximum Operating Temperature	40 °C
Frame Dimension Reference	165 mm
Magnet Stack Length	152.4 mm
Approx. Motor Weight	Approx. 20.2 kg family reference
Overall L × W × H	Verify exact mechanical drawing

The technical family data lists the B560F at 3000 rpm, 26.8 N·m continuous torque, 67.8 N·m peak torque, 5.5 kW continuous output, 0.00213 kg·m² rotor inertia, and approximately 20.2 kg.

6. Dimensions

The MPL-B560F-MJ72AA is a Frame 5 / 165 mm motor with a 60 / 152.4 mm magnet stack.

Dimension Parameter	Specification
Model	MPL-B560F-MJ72AA
Frame Size	165 mm
Frame Reference	Frame 5
Magnet Stack	152.4 mm
Stack Reference	60
Mounting Standard	IEC metric
Mounting Type	Flange mount
Mounting Hole Type	Free mounting holes, Type FF
Shaft	Keyed
Connector	SpeedTEC DIN right-angle
Connector Rotation	180°
Overall Motor Length	Refer to exact mechanical drawing
Overall Motor Width	Refer to exact mechanical drawing
Overall Motor Height	Refer to exact mechanical drawing

The 165 mm value identifies the frame size, while 152.4 mm identifies the magnet-stack length.

These values should not be interpreted as the complete external dimensions of the motor.

The actual machine envelope also includes the front flange, shaft extension, connector arrangement, and rear motor structure.

The product data confirms that two-dimensional drawings and product drawings are available for the exact model, so those drawings should be used for detailed machine-layout work.

7. Weight

The general B560F technical data gives an approximate motor weight of 20.2 kg.

Weight Parameter	Specification
Model	MPL-B560F-MJ72AA
Approximate Motor Weight	20.2 kg
Weight Class	Approximately 20 kg
Integral Brake	No
Packaging Weight	Not included
Cable Weight	Not included
Shipping Weight	May be higher

The 20.2 kg figure is the published B560F family reference and is the most appropriate general engineering value for this configuration when an exact catalog-specific shipping weight is not being used.

For purchasing, lifting, or machine-frame calculations, the actual delivered motor should be checked against the current mechanical documentation and packing information.

8. Rated Power

The MPL-B560F-MJ72AA belongs to the 5.5 kW continuous-power class.

This power level provides a useful balance between torque and speed.

Power Parameter	Specification
Model	MPL-B560F-MJ72AA
Continuous Rated Power	5.5 kW
Rated Speed	3000 rpm
Continuous Torque	26.8 N·m
Peak Torque	67.8 N·m
Voltage Class	400 V AC
Armature Voltage	460 V

The B560F’s 5.5 kW continuous rating is slightly higher than the 5.4 kW rating of the B540K while providing substantially more continuous torque.

This makes the B560F attractive where the application is more torque-oriented rather than purely speed-oriented.

9. Speed Performance

The rated speed of the MPL-B560F-MJ72AA is 3000 rpm, with the published family data also listing 3000 rpm as the maximum speed.

This makes it a useful choice for machinery that needs substantial torque while still requiring relatively high rotational speed.

Compared with a 2000 rpm servo motor, the B560F can support faster mechanical movement.

Compared with a 4000 rpm B540K, it provides considerably more torque at the expense of lower maximum speed.

That tradeoff can be advantageous in machines where acceleration force and sustained torque are more important than the highest possible rotational speed.

10. Torque Performance

The B560F provides approximately 26.8 N·m continuous torque and 67.8 N·m peak torque.

Torque Parameter	Value
Model	MPL-B560F-MJ72AA
Continuous Torque	26.8 N·m
Peak Torque	67.8 N·m
Rated Speed	3000 rpm
Rated Power	5.5 kW
Peak / Continuous Torque Ratio	Approx. 2.53

The continuous torque rating is important for sustained machine loads.

The peak torque rating is particularly useful during acceleration, deceleration, rapid indexing, and temporary increases in mechanical load.

The B560F therefore provides a good combination of continuous torque density and short-duration dynamic capacity.

11. Rotor Inertia

The published B560F family data gives rotor inertia of approximately:

0.00213 kg·m²

Rotor inertia is an important parameter in servo sizing because it influences acceleration response and the relationship between motor inertia and load inertia.

A low-inertia servo motor can accelerate and decelerate rapidly when correctly matched to the machine load.

The B560F is still classified as a low-inertia motor, although its rotor inertia is naturally higher than that of smaller MPL configurations.

This makes it suitable for applications requiring a balance between dynamic response and substantial torque output.

12. Multi-Turn Absolute Encoder

One of the most important characteristics of the MJ72AA configuration is its multi-turn high-resolution absolute encoder.

The detailed B560F technical configuration identifies the feedback as an absolute multi-turn encoder with Sin/Cos, 1024 cycles per revolution, using the Hiperface feedback protocol.

Feedback Parameter	Specification
Model	MPL-B560F-MJ72AA
Feedback Type	Absolute multi-turn
Encoder	High-resolution encoder
Resolution	Sin/Cos, 1024 cycles/rev
Protocol	Hiperface
Feedback Function	Position and velocity feedback
Mechanical Position	Multi-turn position information
Application Benefit	Accurate position tracking over multiple revolutions

The multi-turn arrangement is particularly valuable when the motor shaft can rotate through several complete revolutions and the control system needs to retain position information beyond a single mechanical revolution.

13. Advantages of Multi-Turn Feedback

Multi-turn feedback can be especially useful for:

• Long-travel linear axes.
• Ball-screw positioning systems.
• Rotary indexing systems.
• Gear-driven axes.
• Lifting mechanisms.
• Automated material handling.
• Multi-revolution rotary positioning.
• High-precision assembly systems.

The key advantage is that the encoder can distinguish position across multiple revolutions rather than only within a single revolution.

This can simplify the control of certain long-travel or multi-revolution axes.

When replacing a motor, however, the feedback type should always match the existing control system. A multi-turn motor should not automatically be substituted for a single-turn motor simply because the electrical ratings appear similar.

14. Keyed Shaft Extension

The MPL-B560F-MJ72AA uses a keyed shaft extension.

This makes it suitable for mechanical systems designed around conventional keyed couplings, pulleys, gears, and other torque-transmission components.

Shaft Parameter	Specification
Model	MPL-B560F-MJ72AA
Shaft Type	Keyed shaft extension
Keyway	Yes
Mechanical Connection	Keyed coupling / hub arrangement
Mounting	Flange mount
Shaft Seal	No
Main Advantage	Conventional positive torque transmission

The keyed shaft configuration is particularly useful when replacing older servo motors that already use keyed couplings.

It is also useful where the machine’s mechanical transmission system has been designed around a standard keyway.

15. No Integral Brake

The MPL-B560F-MJ72AA does not include an integral motor brake.

The “2” section of the model configuration identifies the no-brake arrangement.

Brake Parameter	Specification
Model	MPL-B560F-MJ72AA
Integral Brake	No
Brake Voltage	Not applicable
Motor-Mounted Holding Brake	No
Typical Application	Horizontal axes
Brake Version Available	Yes, in related configurations

The no-brake arrangement can be advantageous where the machine does not require mechanical holding after the servo drive is disabled.

It can reduce unnecessary mechanical complexity and avoid brake-related wiring when a holding function is not required.

16. Vertical-Axis Considerations

Because the MJ72AA has no integral brake, additional attention is required when using it on a vertical axis.

A vertical load can move under gravity if the motor is no longer producing holding torque.

For vertical applications, the machine may therefore require:

• An external holding brake.
• A counterbalance.
• A mechanical locking mechanism.
• A suitable gearbox.
• A safety-rated load-retention system.

The no-brake configuration is not inherently unsuitable for vertical applications, but the complete mechanical and safety design must provide the required load-holding function.

17. Connector Configuration

The motor uses a SpeedTEC DIN right-angle connector.

The connector is designed to rotate through 180 degrees.

Connector Parameter	Specification
Model	MPL-B560F-MJ72AA
Connector Type	SpeedTEC DIN
Connector Style	Right-angle
Connector Rotation	180°
Connection	Quick-connect
Installation Benefit	Flexible cable routing

The connector arrangement is useful in machines where the motor is mounted close to guarding, linear guides, structural members, or other equipment.

The 180-degree rotation allows the cable exit direction to be selected according to the available machine space.

18. Mounting Configuration

The MPL-B560F-MJ72AA uses IEC metric flange mounting with free mounting holes, Type FF.

This configuration is intended for direct mechanical installation into an appropriately designed machine structure.

The mounting system should be checked for:

• Flange size.
• Bolt-hole pattern.
• Shaft centerline.
• Shaft projection.
• Coupling position.
• Connector clearance.
• Motor body clearance.
• Cable bend radius.
• Structural rigidity.

The 165 mm frame size alone is not enough to guarantee mechanical compatibility with another motor.

19. Main Product Advantages

High Continuous Torque

The 26.8 N·m continuous torque rating gives the B560F a significant advantage for demanding mechanical loads.

It can provide more continuous torque than the B540K while remaining in a similar overall frame-size class.

High Peak Torque

The approximately 67.8 N·m peak torque rating provides strong acceleration capability.

This is useful for heavy indexing, rapid positioning, and transient load conditions.

3000 rpm Operation

The 3000 rpm speed rating provides a useful balance between speed and torque.

It is fast enough for many high-cycle automation systems while providing greater torque than many higher-speed motor configurations.

Multi-Turn Absolute Feedback

The multi-turn encoder provides position information over multiple shaft revolutions.

This can be particularly useful for long-travel or multi-revolution applications.

Keyed Shaft

The keyed shaft supports conventional mechanical couplings and torque-transmission arrangements.

Low-Inertia Design

The low-inertia motor construction provides fast dynamic response relative to its torque class.

No Integral Brake

For applications that do not require a motor-mounted brake, the no-brake configuration simplifies the motor package.

Flexible Connector

The 180-degree rotatable right-angle connector helps simplify machine installation.

20. Typical Applications

Packaging Machinery

The B560F is well suited to packaging machinery requiring relatively high torque and repeated servo movement.

Typical applications include:

• Product indexing.
• Rotary transfer.
• Filling systems.
• Cutting systems.
• Sealing mechanisms.
• Conveyor synchronization.
• High-speed positioning.
• Packaging-axis control.

Material Handling

Material-handling equipment can require substantial torque during acceleration.

The B560F can be used for:

• Transfer systems.
• Conveyor positioning.
• Automated storage systems.
• Pallet handling.
• Lift mechanisms with external holding systems.
• Heavy positioning axes.

CNC and Machine Tools

Servo motors in machine tools are commonly used for controlled axis movement.

The B560F can be considered for:

• Feed axes.
• Rotary positioning.
• Auxiliary axes.
• Automated tool movement.
• Material-positioning systems.

The actual suitability depends on load inertia, required speed, acceleration, and machine-axis mechanics.

Automated Assembly

Automated assembly systems frequently require repeated acceleration and deceleration.

The B560F’s combination of 26.8 N·m continuous torque, 67.8 N·m peak torque, and multi-turn feedback makes it useful for larger assembly mechanisms.

Robotics and Positioning Systems

The motor can be used in industrial positioning equipment where accurate multi-revolution position feedback is required.

The keyed shaft also makes it suitable for conventional mechanical transmission systems.

Printing and Converting Machinery

Printing, winding, slitting, and web-handling equipment can require controlled rotary speed and substantial torque.

The B560F’s 3000 rpm speed class provides a useful compromise between high speed and torque capability.

Linear Ball-Screw Systems

When combined with an appropriate ball screw, the motor can drive linear axes.

The final linear force depends on:

• Screw lead.
• Mechanical efficiency.
• Motor torque.
• Gear ratio.
• Acceleration profile.
• Load mass.
• Duty cycle.

21. Five Same-Series or Closely Related Models

The following models are useful comparisons within the MPL family and closely related B560F/B540K configurations.

Model	Speed	Power	Continuous Torque	Peak Torque	Feedback	Shaft	Brake	Dimension Reference	Weight
MPL-B560F-MJ72AA	3000 rpm	5.5 kW	26.8 N·m	67.8 N·m	Multi-turn absolute	Keyed	No	165 mm / 152.4 mm stack	Approx. 20.2 kg
MPL-B560F-MJ74AA	3000 rpm	5.5 kW	26.8 N·m	67.8 N·m	Multi-turn absolute	Keyed	24 V DC	165 mm / 152.4 mm stack	Approx. 20–22 kg
MPL-B560F-MK72AA	3000 rpm	5.5 kW	26.8 N·m	67.8 N·m	Multi-turn absolute	Keyless	No	165 mm / 152.4 mm stack	Approx. 20.2 kg
MPL-B560F-SJ72AA	3000 rpm	5.5 kW	26.8 N·m	67.8 N·m	Single-turn absolute	Keyed	No	165 mm / 152.4 mm stack	Approx. 20.2 kg
MPL-B560F-SK72AA	3000 rpm	5.5 kW	26.8 N·m	67.8 N·m	Single-turn absolute	Keyless	No	165 mm / 152.4 mm stack	Approx. 20.2 kg

The B560F family retains the same general frame, stack, speed, and torque class while the suffixes change the feedback and shaft configurations.

For actual replacement work, the feedback and shaft configuration should be matched carefully rather than selecting only by power rating.

22. MJ72AA Compared With MJ74AA

The MJ74AA is the closest brake-equipped comparison.

Parameter	MPL-B560F-MJ72AA	MPL-B560F-MJ74AA
Speed	3000 rpm	3000 rpm
Power	5.5 kW	5.5 kW
Continuous Torque	26.8 N·m	26.8 N·m
Peak Torque	67.8 N·m	67.8 N·m
Feedback	Multi-turn absolute	Multi-turn absolute
Shaft	Keyed	Keyed
Brake	No	24 V DC
Frame	165 mm	165 mm
Stack	152.4 mm	152.4 mm
Weight	Approx. 20.2 kg	Approximately 20–22 kg

The major difference is the brake.

The MJ72AA is appropriate when no integral holding brake is needed.

The MJ74AA is more suitable when a motor-mounted 24 V DC holding brake is required. The related MJ74AA technical data confirms the same 3000 rpm and 26.8 N·m / 67.8 N·m torque class, with a 24 V brake.

23. MJ72AA Compared With MK72AA

The MK72AA is the keyless-shaft counterpart.

Parameter	MPL-B560F-MJ72AA	MPL-B560F-MK72AA
Speed	3000 rpm	3000 rpm
Power	5.5 kW	5.5 kW
Continuous Torque	26.8 N·m	26.8 N·m
Peak Torque	67.8 N·m	67.8 N·m
Feedback	Multi-turn	Multi-turn
Shaft	Keyed	Keyless
Brake	No	No
Frame	165 mm	165 mm
Stack	152.4 mm	152.4 mm

The primary mechanical difference is the shaft.

The MJ72AA is intended for keyed mechanical connections.

The MK72AA is intended for keyless coupling arrangements.

24. MJ72AA Compared With SJ72AA

The SJ72AA changes the feedback system from multi-turn to single-turn.

Parameter	MPL-B560F-MJ72AA	MPL-B560F-SJ72AA
Speed	3000 rpm	3000 rpm
Power	5.5 kW	5.5 kW
Continuous Torque	26.8 N·m	26.8 N·m
Peak Torque	67.8 N·m	67.8 N·m
Feedback	Multi-turn absolute	Single-turn absolute
Shaft	Keyed	Keyed
Brake	No	No
Frame	165 mm	165 mm
Stack	152.4 mm	152.4 mm

This comparison demonstrates why the complete model number matters.

The electrical performance may remain almost identical while the feedback architecture changes significantly.

25. Five Popular Models From the Same Brand

The following models provide a useful comparison across different speed, torque, and power classes.

Model	Rated Speed	Power	Continuous Torque	Peak Torque	Rotor Inertia	Dimension Reference	Weight
MPL-B520K	4000 rpm	3.5 kW	10.7 N·m	23.2 N·m	0.000783 kg·m²	165 mm frame / shorter stack	9.8 kg
MPL-B540D	2000 rpm	3.4 kW	19.4 N·m	41.0 N·m	0.00147 kg·m²	165 mm frame	15 kg
MPL-B540K	4000 rpm	5.4 kW	19.4 N·m	48.6 N·m	Approx. 0.00147 kg·m²	165 mm / 101.6 mm stack	Approx. 15 kg
MPL-B560F	3000 rpm	5.5 kW	26.8 N·m	67.8 N·m	0.00213 kg·m²	165 mm / 152.4 mm stack	20.2 kg
MPL-B580F	3000 rpm	7.1 kW	34.0 N·m	87.0 N·m	0.00289 kg·m²	165 mm / longer stack	25.4 kg

These models illustrate the progression from smaller high-speed servo motors toward larger, higher-torque configurations.

26. MPL-B520K Comparison

The B520K is considerably smaller in torque and power capability.

Parameter	MPL-B520K	MPL-B560F-MJ72AA
Rated Speed	4000 rpm	3000 rpm
Power	3.5 kW	5.5 kW
Continuous Torque	10.7 N·m	26.8 N·m
Peak Torque	23.2 N·m	67.8 N·m
Rotor Inertia	0.000783 kg·m²	0.00213 kg·m²
Weight	9.8 kg	Approx. 20.2 kg

The B520K is attractive for smaller machines where motor mass and lower torque requirements are important.

The B560F is intended for considerably heavier mechanical loads.

27. MPL-B540D Comparison

The B540D is a lower-speed configuration.

Parameter	MPL-B540D	MPL-B560F-MJ72AA
Rated Speed	2000 rpm	3000 rpm
Power	3.4 kW	5.5 kW
Continuous Torque	19.4 N·m	26.8 N·m
Peak Torque	41.0 N·m	67.8 N·m
Rotor Inertia	0.00147 kg·m²	0.00213 kg·m²
Weight	15 kg	Approx. 20.2 kg

The B540D may be a better choice for lower-speed torque applications.

The B560F offers higher speed and substantially greater torque capability.

28. MPL-B540K Comparison

The B540K is particularly useful as a high-speed alternative.

Parameter	MPL-B540K	MPL-B560F-MJ72AA
Rated Speed	4000 rpm	3000 rpm
Power	5.4 kW	5.5 kW
Continuous Torque	19.4 N·m	26.8 N·m
Peak Torque	48.6 N·m	67.8 N·m
Rotor Inertia	Approx. 0.00147 kg·m²	0.00213 kg·m²
Frame	165 mm	165 mm
Stack	101.6 mm	152.4 mm
Weight	Approx. 15 kg	Approx. 20.2 kg

The B540K is preferable when high speed is the main requirement.

The B560F is preferable when the application needs more torque and can operate at 3000 rpm.

29. MPL-B580F Comparison

The B580F is a larger and more powerful alternative.

Parameter	MPL-B560F-MJ72AA	MPL-B580F
Rated Speed	3000 rpm	3000 rpm
Power	5.5 kW	7.1 kW
Continuous Torque	26.8 N·m	34.0 N·m
Peak Torque	67.8 N·m	87.0 N·m
Rotor Inertia	0.00213 kg·m²	0.00289 kg·m²
Weight	Approx. 20.2 kg	25.4 kg

The B580F provides substantially more torque and power.

The B560F remains attractive when the machine load can be handled by 26.8 N·m continuous torque and a more moderate motor size is preferred.

30. Servo Drive Compatibility

The B560F family is intended for use with compatible servo-drive systems in the corresponding motion-control platform.

Published technical information identifies compatibility with drive families including:

• Kinetix 5500.
• Kinetix 6200 / 6500.
• Kinetix 6000.
• Kinetix 300.
• Kinetix 350.
• Kinetix 2000.
• Kinetix 7000.
• Ultra 3000.

The exact drive selection should be based on motor voltage, current, feedback interface, power rating, control architecture, and application requirements. The B560F technical documentation specifically lists these compatible drive families.

31. Mechanical Installation

The motor should be mounted on a rigid and properly prepared machine surface.

A rigid mounting structure helps reduce vibration and prevents unnecessary mechanical stress on the motor housing.

The keyed shaft should be correctly aligned with the connected coupling or mechanical transmission component.

Poor alignment can produce:

• Excessive bearing load.
• Shaft stress.
• Vibration.
• Coupling wear.
• Increased noise.
• Reduced positioning accuracy.
• Shortened motor service life.

32. Coupling Selection

Because the MJ72AA uses a keyed shaft, the coupling should be compatible with a keyed shaft arrangement.

Before installation, check:

• Shaft diameter.
• Shaft length.
• Keyway dimensions.
• Coupling bore.
• Coupling key.
• Coupling balance.
• Maximum coupling speed.
• Axial alignment.
• Radial alignment.

A servo coupling should be selected according to the actual motor speed and torque requirements rather than simply matching the shaft diameter.

33. Cable Routing

The right-angle connector provides a practical advantage in compact machines.

The connector can be rotated through 180 degrees, allowing the cable to exit in a direction that best suits the machine layout.

The cable should not be subjected to:

• Excessive bending.
• Sharp mechanical stress.
• Continuous tension.
• Abrasion.
• High temperatures.
• Moving machine components.
• Excessive vibration.

Correct cable installation is particularly important for servo systems because encoder feedback and motor power connections must remain stable during machine movement.

34. Multi-Turn Feedback in Long-Travel Machines

The multi-turn encoder makes the B560F-MJ72AA particularly interesting for long-travel applications.

A motor connected to a ball screw or gearbox may rotate through many complete revolutions while moving the machine through its working range.

A multi-turn feedback system can provide position information over this multi-revolution range.

This can be useful for:

• Long-travel linear stages.
• Machine-tool axes.
• Automated transfer systems.
• Positioning tables.
• Material-handling systems.
• Large indexing mechanisms.

35. No-Brake Configuration in Horizontal Axes

For a horizontal axis, a motor-mounted brake may not be necessary.

In such applications, the MJ72AA’s no-brake configuration can provide a straightforward motor arrangement.

The servo drive controls the motor position and torque while the machine’s mechanical system provides the necessary load support.

This can be particularly useful for:

• Horizontal ball-screw axes.
• Rotary tables.
• Conveyors.
• Packaging axes.
• Horizontal transfer mechanisms.
• Material positioning systems.

36. Maintenance

Routine inspection should include:

• Motor mounting bolts.
• Shaft coupling.
• Keyway condition.
• Mechanical alignment.
• Encoder connection.
• Motor power connection.
• Cable condition.
• Abnormal vibration.
• Unusual noise.
• Motor temperature.
• Drive fault history.
• Machine load changes.

A sudden increase in vibration, temperature, or servo following error should be investigated rather than treated simply as a control-system issue.

37. Replacement Checklist

When replacing an existing motor, the following characteristics should be verified.

Replacement Item	Required Specification
Model	MPL-B560F-MJ72AA
Voltage	460 V
Voltage Class	400 V AC
Speed	3000 rpm
Power	5.5 kW
Continuous Torque	26.8 N·m
Peak Torque	67.8 N·m
Frame	165 mm
Magnet Stack	152.4 mm
Feedback	Multi-turn high-resolution absolute
Feedback Protocol	Hiperface
Shaft	Keyed
Brake	None
Connector	SpeedTEC DIN right-angle
Connector Rotation	180°
Mounting	IEC metric flange
Mounting Holes	Type FF
Rotor Inertia	Approx. 0.00213 kg·m²
Weight	Approx. 20.2 kg
Exact Overall Dimensions	Verify mechanical drawing

Power and speed alone are not sufficient for motor replacement.

The feedback type, shaft configuration, brake configuration, frame size, magnet stack, connector, and mounting arrangement should all match the application.

38. Application Selection Guide

Application	Suitability
High-torque positioning	Excellent
Packaging machinery	Excellent
Material handling	Excellent
Automated assembly	Excellent
CNC auxiliary axes	Very suitable
Ball-screw positioning	Excellent
Long-travel linear axis	Excellent
Multi-revolution rotary axis	Excellent
Horizontal servo axis	Excellent
Vertical axis without external brake	Requires additional load-holding solution
Heavy-duty positioning	Very suitable
High-speed 4000 rpm applications	Consider B540K instead
Keyed coupling system	Excellent
Keyless coupling system	Consider corresponding K-suffix model

The B560F is best suited to applications where torque demand is significant and 3000 rpm is sufficient for the machine.

39. Main Product Advantages at a Glance

Advantage	Practical Benefit
26.8 N·m continuous torque	Handles substantial continuous loads
67.8 N·m peak torque	Strong acceleration and transient-load capability
3000 rpm	Good balance between speed and torque
5.5 kW power	Suitable for demanding industrial machinery
Multi-turn absolute feedback	Accurate position information across multiple revolutions
Keyed shaft	Conventional mechanical torque transmission
Low-inertia design	Fast dynamic response
No integral brake	Simple configuration for non-brake applications
180° connector rotation	Flexible cable routing
165 mm frame	Strong industrial mechanical platform
152.4 mm stack	Higher torque capability than shorter-stack models

40. Why Choose the MPL-B560F-MJ72AA?

The MPL-B560F-MJ72AA is a strong choice when a machine requires more torque than a B540K but does not require the larger torque class of a B580F or B660F.

Its 26.8 N·m continuous torque provides a substantial increase over the B540K’s 19.4 N·m continuous torque.

Its 67.8 N·m peak torque gives the machine additional acceleration capability.

The 3000 rpm speed rating remains high enough for many automated production systems.

The multi-turn absolute encoder is especially useful for applications where the motor performs multiple revolutions during normal machine operation.

The keyed shaft makes it suitable for conventional mechanical transmission systems.

The no-brake configuration keeps the motor focused on applications where a separate holding mechanism is not required.

41. Comparison With the B540K

The B540K and B560F are close in overall application range but have different performance priorities.

The B540K emphasizes higher rotational speed.

The B560F emphasizes higher torque.

Feature	MPL-B540K	MPL-B560F-MJ72AA
Speed	4000 rpm	3000 rpm
Power	5.4 kW	5.5 kW
Continuous Torque	19.4 N·m	26.8 N·m
Peak Torque	48.6 N·m	67.8 N·m
Frame	165 mm	165 mm
Stack	101.6 mm	152.4 mm
Rotor Inertia	Approx. 0.00147 kg·m²	0.00213 kg·m²
Weight	Approx. 15 kg	Approx. 20.2 kg

If the machine needs speed, the B540K may be more attractive.

If the machine needs torque, the B560F is generally the stronger choice.

42. Comparison With the B580F

The B580F provides another step upward in torque and power.

Feature	MPL-B560F-MJ72AA	MPL-B580F
Speed	3000 rpm	3000 rpm
Power	5.5 kW	7.1 kW
Continuous Torque	26.8 N·m	34.0 N·m
Peak Torque	67.8 N·m	87.0 N·m
Rotor Inertia	0.00213 kg·m²	0.00289 kg·m²
Weight	Approx. 20.2 kg	25.4 kg

The B580F is more appropriate when the machine needs substantially more torque.

The B560F is attractive when 26.8 N·m continuous torque is sufficient and a lighter, more moderate motor configuration is preferred.

43. Practical Machine Sizing Considerations

Before selecting the B560F-MJ72AA, the machine designer should determine the actual motion profile.

Important parameters include:

• Continuous load torque.
• Peak load torque.
• Acceleration time.
• Deceleration time.
• Maximum operating speed.
• Average speed.
• Load inertia.
• Motor inertia.
• Reflected inertia.
• Duty cycle.
• Gear ratio.
• Ball-screw lead.
• Mechanical efficiency.
• Required positioning accuracy.
• Required holding function.
• Ambient temperature.

A motor that appears appropriate based only on peak torque may still be unsuitable if its continuous torque requirement is too high.

Likewise, a motor can be unnecessarily large if the actual load is significantly below its rated capability.

44. Detailed Mechanical Application Notes

For a keyed-shaft servo motor, mechanical alignment is particularly important.

The coupling should be properly seated on the shaft.

The shaft key should be correctly matched to the coupling keyway.

The coupling should not be forced onto the shaft using excessive mechanical impact.

The motor flange should be securely mounted to the machine frame.

The machine structure should be sufficiently rigid to prevent vibration during acceleration and deceleration.

Because the B560F can generate substantial peak torque, the coupling and machine structure should be sized for the dynamic torque rather than only the continuous torque.

45. Environmental and Operating Considerations

The technical data gives a maximum operating temperature of approximately 40 °C for the motor configuration.

Environmental Parameter	Specification
Model	MPL-B560F-MJ72AA
Maximum Operating Temperature	40 °C
Motor Type	Low-inertia servo motor
Installation	Industrial machine environment
Cooling	Motor-dependent natural heat dissipation
Mounting	Metric flange
Shaft Seal	No
Environmental Protection	Verify application-specific rating from current documentation

Environmental conditions should be considered carefully when the motor is installed inside a machine enclosure.

Restricted airflow, high ambient temperature, or heat from nearby equipment can affect the motor’s thermal performance.

46. Five Related Model Selection Recommendations

1. MPL-B560F-MJ74AA

This is the most natural alternative when the machine requires the same general B560F performance but also needs an integral 24 V DC brake.

2. MPL-B560F-MK72AA

This model is useful when the application requires multi-turn feedback but uses a keyless shaft instead of a keyed shaft.

3. MPL-B560F-SJ72AA

This is appropriate when single-turn absolute feedback is preferred while retaining the keyed shaft and no-brake arrangement.

4. MPL-B560F-SK72AA

This provides a similar B560F performance class with single-turn feedback and a keyless shaft.

5. MPL-B540K-MJ72AA

This is a useful lower-torque alternative when the machine needs multi-turn feedback but can operate with the B540K’s lower continuous torque and higher 4000 rpm speed class.

47. Same-Brand Model Selection Recommendations

Model	Speed	Continuous Torque	Peak Torque	Power	Rotor Inertia	Weight
MPL-B520K	4000 rpm	10.7 N·m	23.2 N·m	3.5 kW	0.000783 kg·m²	9.8 kg
MPL-B540D	2000 rpm	19.4 N·m	41.0 N·m	3.4 kW	0.00147 kg·m²	15 kg
MPL-B540K	4000 rpm	19.4 N·m	48.6 N·m	5.4 kW	Approx. 0.00147 kg·m²	Approx. 15 kg
MPL-B560F	3000 rpm	26.8 N·m	67.8 N·m	5.5 kW	0.00213 kg·m²	20.2 kg
MPL-B580F	3000 rpm	34.0 N·m	87.0 N·m	7.1 kW	0.00289 kg·m²	25.4 kg

The progression clearly shows how the motor range moves from smaller, lighter high-speed units toward larger motors with substantially higher torque capability.

48. Complete Technical Specification Table

Category	MPL-B560F-MJ72AA
Model	MPL-B560F-MJ72AA
Brand	Allen-Bradley
Product Family	MP-Series
Product Series	MPL Low Inertia
Motor Type	Brushless rotary servo motor
Voltage	460 V
Voltage Class	400 V AC
Rated Speed	3000 rpm
Maximum Speed	3000 rpm
Rated Power	5.5 kW
Continuous Torque	26.8 N·m
Peak Torque	67.8 N·m
Frame Size	165 mm
Frame Reference	Frame 5
Magnet Stack	152.4 mm
Stack Reference	60
Feedback	Multi-turn high-resolution absolute encoder
Feedback Resolution	Sin/Cos, 1024 cycles/rev
Feedback Protocol	Hiperface
Shaft	Keyed shaft extension
Brake	None
Connector	SpeedTEC DIN
Connector Style	Right-angle
Connector Rotation	180°
Mounting	IEC metric flange
Mounting Holes	Type FF
Shaft Seal	No
Rotor Inertia	Approx. 0.00213 kg·m²
Maximum Operating Temperature	40 °C
Dimension Reference	165 mm frame / 152.4 mm stack
Overall L × W × H	Verify mechanical drawing
Approximate Weight	20.2 kg
Typical Application	Industrial motion control

The core model configuration is directly confirmed by the product selection data, while the torque, power, inertia, and weight figures come from the B560F technical family data.

49. Key Specifications at a Glance

The MPL-B560F-MJ72AA can be summarized as follows:

5.5 kW continuous power

3000 rpm rated speed

26.8 N·m continuous torque

67.8 N·m peak torque

165 mm frame

152.4 mm magnet stack

Multi-turn high-resolution absolute encoder

Hiperface feedback

Keyed shaft

No integral brake

SpeedTEC DIN right-angle connector

180-degree connector rotation

Metric flange mounting

Approximately 20.2 kg

These characteristics place the motor in a substantial industrial servo category intended for demanding automated machinery.

50. Final Product Assessment

The MPL-B560F-MJ72AA is a strong choice for industrial motion systems that require a combination of high torque, reliable speed control, multi-turn absolute feedback, and conventional keyed mechanical transmission.

Its 26.8 N·m continuous torque and 67.8 N·m peak torque provide significantly more torque capability than the B540K class.

The 3000 rpm operating speed provides a useful balance between high rotational speed and substantial torque output.

The 5.5 kW continuous rating makes it suitable for demanding production machinery where smaller servo motors may not provide sufficient continuous mechanical output.

The multi-turn high-resolution absolute encoder is particularly valuable for long-travel linear axes, multi-revolution rotary mechanisms, ball-screw systems, and other applications where position information across several revolutions is important.

The keyed shaft makes the motor convenient for conventional industrial mechanical transmissions.

The absence of an integral brake makes it a straightforward choice for applications where a motor-mounted holding brake is not required.

For vertical or gravity-loaded applications, an external holding mechanism should be considered because the MJ72AA does not include a motor-mounted brake.

The SpeedTEC DIN right-angle connector and 180-degree rotation capability provide useful installation flexibility, especially in compact automated equipment.

From a replacement perspective, the most important characteristics are the complete catalog number, 460 V configuration, 3000 rpm speed, 26.8 N·m continuous torque, 67.8 N·m peak torque, multi-turn feedback, keyed shaft, no brake, 165 mm frame, and 152.4 mm magnet stack.

Overall, the MPL-B560F-MJ72AA is best suited to medium-to-heavy industrial servo applications where torque capacity is more important than maximum rotational speed.

For higher speed, the B540K family is worth considering.

For still higher torque, the B580F or larger configurations may be more appropriate.

For applications requiring an integral holding brake, the closely related MJ74AA configuration is the more suitable choice.

For machines using a keyless coupling, a corresponding K-suffix configuration should be selected instead of the keyed MJ72AA.