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- MPL-A4540F-MK74AA
- Low-Inertia Brushless Servo Motors Product
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MPL-A4540F-MK74AA Servo Motor Product Introduction, Technical Parameters, Applications, Advantages and Model Recommendation Guide
1. Product Overview
Product Model: MPL-A4540F-MK74AA
Brand: Allen-Bradley
Product Series: MP-Series MPL Low-Inertia Brushless Servo Motor Series
Product Type: AC Rotary Servo Motor
Application Category: Industrial Motion Control Equipment
The MPL-A4540F-MK74AA is a high-performance low-inertia brushless AC servo motor designed for precision industrial automation systems.
It belongs to the MP-Series MPL servo motor family and is designed for applications that require high positioning accuracy, fast dynamic response, stable torque output, and reliable operation under continuous working conditions.
This model uses a 230V AC voltage class design with a 45 frame size and a 101.6 mm magnet stack length. The motor provides a rated speed of 3000 RPM and approximately 10.2 Nm continuous torque output, offering a balanced combination of speed, torque, and compact installation size.
The MPL-A4540F-MK74AA combines a low-inertia rotor structure with a multi-turn high-resolution absolute encoder system. The absolute feedback technology allows the control system to retain accurate position information even after power interruption, reducing machine restart time and improving production efficiency.
The motor also includes a 24V DC holding brake, keyless shaft extension, right-angle connector design, and IEC metric mounting structure. The brake function makes this model suitable for applications where the load must remain securely positioned after stopping.
The compact design and advanced feedback system make the MPL-A4540F-MK74AA suitable for demanding automation applications such as packaging machinery, robotics, CNC systems, semiconductor equipment, and precision positioning systems.
2. Product Brand and Series Information
| Item | Description |
|---|---|
| Brand | Allen-Bradley |
| Product Series | MP-Series MPL Low-Inertia Servo Motor Series |
| Product Type | Brushless AC Servo Motor |
| Motor Technology | Permanent Magnet Rotary Servo Motor |
| Voltage Class | 230V AC |
| Feedback Type | Multi-turn High-resolution Absolute Encoder |
| Brake Configuration | 24V DC Holding Brake |
| Shaft Type | Keyless Shaft Extension |
| Connector Type | Right-angle SpeedTEC DIN Connector |
| Motor Frame | Frame Size 45 |
| Motion Type | Rotary Motion Control |
| Main Application | Industrial Automation Systems |
3. Model Number Explanation
| Model Code | Description |
|---|---|
| MPL | MP-Series low-inertia servo motor family |
| A | 230V AC voltage class |
| 45 | Frame size 45, 130 mm flange size |
| 40 | Magnet stack length 101.6 mm |
| F | High-speed motor version, 3000 RPM |
| MK | Multi-turn high-resolution absolute encoder with keyless shaft |
| 74 | Right-angle connector with 24V DC brake |
| AA | Standard configuration |
4. Detailed Product Parameters
| Parameter | Specification |
|---|---|
| Model | MPL-A4540F-MK74AA |
| Brand | Allen-Bradley |
| Product Series | MP-Series MPL |
| Product Type | Rotary AC Servo Motor |
| Motor Design | Low-Inertia Brushless Permanent Magnet Servo Motor |
| Voltage Class | 230V AC |
| Rated Voltage | 230V AC |
| Rated Speed | 3000 RPM |
| Maximum Speed | 3000 RPM |
| Continuous Stall Torque | Approx. 10.2 Nm |
| Peak Stall Torque | Approx. 27.1 Nm |
| Continuous Output Power | Approx. 2.6 kW |
| Feedback Type | Multi-turn High-resolution Absolute Encoder |
| Encoder Type | Absolute Multi-turn Feedback |
| Feedback Resolution | High-resolution Sin/Cos Encoder |
| Feedback Protocol | Absolute Feedback System |
| Shaft Type | Keyless Shaft Extension |
| Brake Function | 24V DC Holding Brake |
| Brake Type | Integrated Mechanical Brake |
| Connector Type | SpeedTEC DIN Connector |
| Connector Position | Right Angle |
| Connector Rotation | 180° Rotatable |
| Frame Size | 45 Frame |
| Flange Diameter | 130 mm |
| Magnet Stack Length | 101.6 mm |
| Mounting Type | IEC Metric Flange Mount |
| Mounting Hole Type | Free Mounting Holes |
| Cooling Method | Natural Cooling |
| Rotor Design | Low-Inertia Rotor |
| Rotor Inertia | Approx. 0.00052 kg·m² |
| Housing Structure | Industrial Servo Motor Housing |
| Protection Structure | Industrial Enclosure |
| Installation Method | Flange Mount |
| Rotation Direction | Bidirectional |
| Operating Environment | Industrial Automation Environment |
| Dimensions | Approx. 130 mm × 130 mm × 300 mm |
| Weight | Approx. 9.5 kg |
5. Product Introduction
The MPL-A4540F-MK74AA is designed for industrial equipment where precise positioning and reliable load holding are important.
The motor combines the advantages of a low-inertia servo structure and advanced absolute feedback technology. The low-inertia rotor allows the motor to respond quickly to command changes, reducing delay during acceleration and deceleration cycles.
The integrated multi-turn absolute encoder provides continuous position information. Unlike traditional feedback systems that may require a return-to-home operation after power loss, absolute feedback helps maintain position awareness and improves machine availability.
The built-in 24V DC brake provides additional mechanical stability. When the motor is stopped or the power supply is removed, the brake helps maintain the shaft position and prevents unwanted movement.
The keyless shaft structure simplifies mechanical installation and provides reliable torque transmission when connected with couplings or other transmission components.
With its compact 45 frame design, the motor offers strong performance while minimizing machine installation space.
6. Main Product Features
6.1 Low-Inertia High-Speed Response
The low-inertia design allows the motor to react quickly during frequent motion changes.
Main benefits:
- Faster acceleration response
- Shorter positioning time
- Improved machine cycle efficiency
- Reduced motion delay
- Better synchronization performance
This makes the motor suitable for high-speed automation equipment.
6.2 Multi-turn Absolute Encoder Feedback
The integrated absolute encoder provides accurate position monitoring.
Advantages:
- Maintains position data after power interruption
- Reduces machine reset time
- Improves positioning accuracy
- Supports complex motion control
- Enhances system reliability
This feature is especially useful for precision manufacturing equipment.
6.3 Integrated 24V DC Brake
The built-in brake increases application flexibility.
Benefits:
- Provides load holding capability
- Supports vertical-axis mechanisms
- Improves machine stability
- Reduces the need for external braking devices
The brake configuration makes the motor suitable for applications where safety and position holding are important.
6.4 Keyless Shaft Design
The keyless shaft structure provides flexible mechanical integration.
Advantages:
- Simplifies coupling installation
- Provides stable torque transfer
- Reduces mechanical adjustment requirements
- Supports compact machine designs
6.5 Compact High-Power Structure
The 45 frame structure provides high performance in a compact package.
Advantages:
- Saves installation space
- Improves equipment layout flexibility
- Provides high torque density
- Reduces machine design complexity
7. Product Applications
7.1 Packaging Machinery
The MPL-A4540F-MK74AA is widely used in automated packaging systems.
Typical applications:
- Filling machines
- Labeling equipment
- Sealing systems
- Cartoning machines
- Indexing mechanisms
The fast response and accurate feedback improve production consistency.
7.2 CNC Machine Tools
Applications include:
- Feed axis control
- Precision positioning
- Rotary axis systems
- Tool movement mechanisms
The absolute feedback system improves machining accuracy and repeatability.
7.3 Robotics and Assembly Equipment
Typical applications:
- Robotic arms
- Pick-and-place systems
- Automated assembly equipment
- Motion positioning platforms
The low-inertia design improves robot movement speed and smoothness.
7.4 Semiconductor and Electronics Equipment
Applications:
- Precision inspection systems
- Component placement machines
- Electronic assembly equipment
- High-accuracy positioning systems
The high-resolution feedback supports precise manufacturing requirements.
7.5 Material Handling Systems
Applications:
- Vertical lifting mechanisms
- Transfer equipment
- Conveyor systems
- Automated storage systems
The integrated brake improves load stability during stopping conditions.
8. Product Advantages
| Advantage | Description |
|---|---|
| High Position Accuracy | Absolute encoder provides accurate position feedback |
| Fast Response Speed | Low inertia improves acceleration and deceleration performance |
| Position Holding Capability | Integrated brake maintains load position |
| Compact Size | 130 mm frame saves installation space |
| Strong Torque Output | Provides 10.2 Nm continuous torque |
| Reliable Operation | Suitable for continuous industrial applications |
| Reduced Downtime | Absolute feedback reduces homing requirements |
| Flexible Installation | Right-angle connector simplifies cable routing |
9. Recommended Related Models from MPL Series
| Model | Voltage | Speed | Continuous Torque | Feedback | Brake | Dimensions | Weight kg |
|---|---|---|---|---|---|---|---|
| MPL-A4540F-MK72AA | 230V AC | 3000 RPM | 10.2 Nm | Multi-turn High-resolution Absolute Encoder | No Brake | 130 mm × 101.6 mm stack | Approx. 9.5 kg |
| MPL-A4540F-MJ74AA | 230V AC | 3000 RPM | 10.2 Nm | Multi-turn Absolute Encoder | 24V Brake | 130 mm × 101.6 mm stack | Approx. 13 kg |
| MPL-A4540F-HK74AA | 230V AC | 3000 RPM | 10.2 Nm | Incremental Encoder | 24V Brake | 130 mm × 101.6 mm stack | Approx. 13 kg |
| MPL-A4560F-MK74AA | 230V AC | 3000 RPM | 14.1 Nm | Multi-turn Encoder | 24V Brake | 130 mm × 152.4 mm stack | Approx. 15 kg |
| MPL-A4530F-MK74AA | 230V AC | 3000 RPM | 8.36 Nm | Absolute Encoder | 24V Brake | 130 mm × 76.2 mm stack | Approx. 11 kg |
10. Recommended Popular Models from the Same Brand
| Model | Product Series | Voltage | Speed | Torque | Feedback | Brake | Dimensions | Weight kg |
|---|---|---|---|---|---|---|---|---|
| MPL-A4540F-MJ74AA | MP-Series MPL | 230V AC | 3000 RPM | 10.2 Nm | Multi-turn Absolute Encoder | 24V Brake | 130 mm × 101.6 mm | Approx. 13 kg |
| MPL-A4560F-MJ74AA | MP-Series MPL | 230V AC | 3000 RPM | 14.1 Nm | Absolute Encoder | 24V Brake | 130 mm × 152.4 mm | Approx. 15 kg |
| MPL-A520K-MJ74AA | MP-Series MPL | 230V AC | 4000 RPM | 10.7 Nm | High-resolution Encoder | 24V Brake | 165 mm × 50.8 mm | Approx. 12 kg |
| MPL-A540F-MJ74AA | MP-Series MPL | 230V AC | 3000 RPM | Higher Torque Class | Absolute Encoder | 24V Brake | 165 mm × 101.6 mm | Approx. 20 kg |
| MPL-B4540F-MK74AA | MP-Series MPL | 460V AC | 3000 RPM | 10.2 Nm | Multi-turn Absolute Encoder | 24V Brake | 130 mm × 101.6 mm | Approx. 13 kg |
11. Model Selection Guide
| Application Requirement | Recommended Model |
|---|---|
| High precision positioning without brake | MPL-A4540F-MK72AA |
| High precision positioning with brake | MPL-A4540F-MK74AA |
| Standard absolute feedback requirement | MPL-A4540F-MJ74AA |
| Higher torque requirement | MPL-A4560F Series |
| Smaller compact motion system | MPL-A4530F Series |
12. Product Summary
The MPL-A4540F-MK74AA is a high-performance low-inertia servo motor designed for precision industrial automation applications.
With a 230V AC voltage class, 3000 RPM rated speed, approximately 10.2 Nm continuous torque, multi-turn high-resolution absolute encoder feedback, keyless shaft design, and integrated 24V DC brake, this motor provides a complete solution for demanding motion control systems.
Its combination of fast response, accurate feedback, compact structure, and reliable holding capability makes it suitable for packaging equipment, CNC machines, robotics, semiconductor systems, and advanced industrial automation platforms.
The MPL-A4540F-MK74AA is especially suitable for applications requiring accurate positioning, reduced downtime, stable operation, and reliable performance under changing load conditions.