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Product Model: MPL-A4540F-MJ74AA
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-MJ74AA is a high-performance low-inertia brushless AC servo motor designed for precision industrial automation applications.
It belongs to the MP-Series MPL servo motor family and is developed for machines that require fast response, accurate positioning, smooth operation, and stable torque performance.
This model uses a 230V AC voltage class design with a 45 frame structure and a 101.6 mm magnet stack length. The low-inertia rotor design enables quick acceleration and deceleration, allowing the motor to respond rapidly to changing motion commands.
The MPL-A4540F-MJ74AA combines a compact mechanical structure with advanced feedback technology. It integrates a multi-turn absolute encoder system, which provides accurate position information and improves machine restart performance by maintaining position data after power interruption.
Compared with standard incremental feedback motors, the absolute encoder configuration reduces the requirement for repeated homing procedures and improves overall system availability.
This model includes a 24V DC holding brake, making it suitable for applications where the mechanical load must remain securely positioned when the motor is stopped.
The motor is widely used in precision automation systems such as packaging equipment, robotics, CNC machines, semiconductor manufacturing systems, and material handling equipment.
| Item | Description |
|---|---|
| Brand | Allen-Bradley |
| Product Series | MP-Series MPL Low-Inertia Servo Motor Series |
| Product Family | Brushless AC Servo Motor |
| Motor Type | Permanent Magnet Rotary Servo Motor |
| Voltage Class | 230V AC |
| Feedback System | Multi-turn Absolute Encoder |
| Brake Configuration | 24V DC Holding Brake |
| Motion Type | Rotary Motion Control |
| Main Function | Precision Positioning and Speed Control |
| Application Field | Industrial Automation |
| Model Code | Description |
|---|---|
| MPL | MP-Series low-inertia servo motor family |
| A | 230V AC voltage class |
| 45 | 45 frame size |
| 40 | 101.6 mm magnet stack length |
| F | High-speed motor design, 3000 RPM class |
| MJ | Multi-turn absolute encoder feedback |
| 74 | Right-angle connector with 24V DC brake |
| AA | Standard configuration |
| Parameter | Specification |
|---|---|
| Model | MPL-A4540F-MJ74AA |
| Brand | Allen-Bradley |
| Product Series | MP-Series MPL |
| Product Type | Rotary AC Servo Motor |
| Motor Design | Low-Inertia Permanent Magnet Servo Motor |
| Voltage Class | 230V AC |
| Rated Voltage | 230V AC |
| Rated Speed | 3000 RPM |
| Continuous Stall Torque | Approx. 10.2 Nm |
| Peak Stall Torque | Approx. 27.1 Nm |
| Rated Output Power | Approx. 2.6 kW |
| Feedback Type | Multi-turn Absolute Encoder |
| Encoder Type | High-resolution Absolute Feedback |
| Shaft Type | Keyed Shaft Extension |
| Brake Function | 24V DC Holding Brake |
| Brake Type | Mechanical Holding Brake |
| Connector Type | Right-angle 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 |
| Cooling Method | Natural Cooling |
| Rotor Design | Low-Inertia Rotor |
| Housing Structure | Industrial Servo Motor Housing |
| Installation Method | Flange Mount |
| Rotation Direction | Bidirectional |
| Operating Environment | Industrial Automation Environment |
| Dimensions | Approx. 130 mm × 130 mm × 300 mm |
| Weight | Approx. 13 kg |
The MPL-A4540F-MJ74AA is designed for automation applications where precise motion control and load holding capability are both required.
The motor combines high-speed response characteristics with absolute position feedback technology. This allows the control system to accurately determine the motor position during operation and after power recovery.
The low-inertia rotor provides excellent dynamic performance. During repeated movement cycles, the motor can quickly accelerate, reach target speed, and stop accurately.
This characteristic is especially valuable for high-speed production equipment where every cycle requires precise positioning.
The integrated 24V DC brake provides additional mechanical stability. When the motor is not energized, the brake helps maintain the shaft position and prevents unwanted movement.
The keyed shaft design provides a secure mechanical connection between the motor and machine transmission components, improving torque transfer reliability.
The compact 45 frame design allows machine builders to achieve high performance while minimizing installation space.
The low-inertia design improves the motor response speed.
Main benefits:
This makes the motor suitable for applications with frequent start-stop operation.
The integrated absolute encoder provides accurate position feedback.
Advantages:
This feature improves system reliability in precision applications.
The 24V DC brake expands the application range of the motor.
Benefits:
It is especially suitable for equipment where gravity loads must be controlled.
The motor provides strong performance in a compact package.
Advantages:
The MPL-A4540F-MJ74AA is commonly used in automated packaging systems.
Typical applications:
The motor provides accurate positioning and stable operation during continuous production.
Applications include:
The absolute feedback system improves machining accuracy and repeatability.
Typical applications:
The low inertia characteristics improve robot movement speed and smoothness.
Applications include:
The motor provides stable and repeatable motion performance.
Applications:
The brake function improves safety and load stability.
| Advantage | Description |
|---|---|
| High Position Accuracy | Absolute encoder provides precise position information |
| Fast Dynamic Response | Low inertia enables rapid movement changes |
| Load Holding Capability | Integrated brake supports stable positioning |
| Compact Design | 130 mm frame saves installation space |
| High Torque Density | Provides strong output performance |
| Reliable Operation | Suitable for continuous industrial environments |
| Reduced Downtime | Absolute feedback reduces restart procedures |
| Flexible Installation | Right-angle connector improves wiring layout |
| Model | Voltage | Speed | Continuous Torque | Feedback | Brake | Dimensions | Weight kg |
|---|---|---|---|---|---|---|---|
| MPL-A4540F-MJ72AA | 230V AC | 3000 RPM | 10.2 Nm | Multi-turn Absolute Encoder | No Brake | 130 mm × 101.6 mm stack | 9.5 kg |
| MPL-A4540F-HK74AA | 230V AC | 3000 RPM | 10.2 Nm | Incremental Encoder | 24V DC Brake | 130 mm × 101.6 mm stack | 13 kg |
| MPL-A4540F-HJ74AA | 230V AC | 3000 RPM | 10.2 Nm | Incremental Encoder | 24V DC Brake | 130 mm × 101.6 mm stack | 13 kg |
| MPL-A4560F-MJ74AA | 230V AC | 3000 RPM | 14.1 Nm | Absolute Encoder | 24V DC Brake | 130 mm × 152.4 mm stack | Approx. 15 kg |
| MPL-A4530F-MJ74AA | 230V AC | 3000 RPM | 8.36 Nm | Absolute Encoder | 24V DC Brake | 130 mm × 76.2 mm stack | Approx. 11 kg |
| Model | Product Series | Voltage | Speed | Torque | Feedback | Brake | Dimensions | Weight kg |
|---|---|---|---|---|---|---|---|---|
| MPL-A4540F-MJ72AA | MP-Series MPL | 230V AC | 3000 RPM | 10.2 Nm | Multi-turn Absolute Encoder | No Brake | 130 mm × 101.6 mm | 9.5 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-MJ74AA | MP-Series MPL | 460V AC | 3000 RPM | 10.2 Nm | Absolute Encoder | 24V Brake | 130 mm × 101.6 mm | Approx. 13 kg |
| Application Requirement | Recommended Model |
|---|---|
| High precision positioning without brake | MPL-A4540F-MJ72AA |
| High precision positioning with brake | MPL-A4540F-MJ74AA |
| Standard feedback application | MPL-A4540F-HK72AA |
| Higher torque requirement | MPL-A4560F series |
| Compact high-speed application | MPL-A4530F series |
The MPL-A4540F-MJ74AA is a high-performance low-inertia servo motor designed for demanding industrial automation applications.
With a 230V AC voltage class, 3000 RPM rated speed, approximately 10.2 Nm continuous torque, multi-turn absolute encoder feedback, and integrated 24V DC holding brake, it provides a complete motion solution for precision equipment.
The combination of fast response, accurate feedback, compact mechanical design, and brake functionality makes this motor suitable for packaging systems, CNC equipment, robotics, semiconductor manufacturing, and advanced automation platforms.
The MPL-A4540F-MJ74AA is an ideal choice for applications requiring reliable positioning, reduced downtime, and stable operation under changing load conditions.