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- MPL-A310P-MJ74AA
- Servo Motor
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- 100 mm
- 2.7 kg
- Xiamen, China
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Product Overview
The Allen-Bradley MPL-A310P-MJ74AA Servo Motor is a high-performance MP-Series Low-Inertia Brushless AC Rotary Servo Motor engineered for demanding industrial motion control applications. Designed as part of the Rockwell Automation MP-Series servo motor family, this model combines outstanding positioning accuracy, high-speed response, and dependable torque output to support modern automated manufacturing systems.
The MPL-A310P-MJ74AA features a 230 V AC voltage class, a 100 mm IEC metric frame size, a 25.4 mm magnet stack length, a 5000 RPM rated speed, a multi-turn high-resolution absolute encoder, a keyed shaft extension, a SpeedTEC right-angle 180° rotatable DIN connector, and an integrated 24 V DC electromagnetic holding brake. The multi-turn encoder retains position information through multiple shaft revolutions, eliminating the need for homing after power restoration, while the holding brake securely maintains shaft position during power loss or emergency shutdown.
Designed for integration with Allen-Bradley Kinetix servo drive systems, the motor provides highly accurate closed-loop position, speed, and torque control. Its low-inertia rotor enables rapid acceleration and deceleration while maintaining exceptional motion stability and repeatability.
With a 100 mm frame size and an approximate weight of 2.7 kg, the MPL-A310P-MJ74AA is widely used in robotics, CNC machining centers, packaging machinery, semiconductor manufacturing, electronics assembly, automated material handling systems, printing equipment, and high-speed production lines.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen-Bradley |
| Model | MPL-A310P-MJ74AA |
| Product Series | MP-Series MPL |
| Product Type | Rotary Servo Motor |
| Motor Type | Low-Inertia Brushless AC Servo Motor |
| Rated Voltage | 230 V AC |
| Brake Voltage | 24 V DC |
| Rated Speed | 5000 RPM |
| Continuous Output Power | Approximately 0.73 kW |
| Continuous Torque | Approximately 1.58 Nm |
| Peak Torque | Approximately 3.61 Nm |
| Frame Size | 100 mm |
| Magnet Stack Length | 25.4 mm |
| Feedback Device | Multi-Turn High-Resolution Absolute Encoder |
| Shaft Type | Keyed Shaft |
| Holding Brake | Integrated 24 V DC Electromagnetic Brake |
| Connector Type | SpeedTEC Right-Angle 180° Rotatable DIN Connector |
| Mounting | IEC Metric Flange |
| Cooling Method | Natural Air Cooling |
| Dimensions | Frame Size: 100 mm |
| Weight | Approximately 2.7 kg |
Function and Working Principle
The Allen-Bradley MPL-A310P-MJ74AA converts electrical energy supplied by a compatible servo drive into precise rotary motion while continuously transmitting multi-turn absolute encoder feedback for advanced closed-loop servo control.
Typical Motion Control Architecture
Motion Controller
↓
Allen-Bradley Kinetix Servo Drive
↓
MPL-A310P-MJ74AA Servo Motor
↓
Mechanical Transmission
↓
Industrial Equipment
During operation, the servo motor performs the following functions:
- Precision position control
- Accurate speed regulation
- Stable torque output
- Multi-turn absolute position feedback
- Rapid acceleration and deceleration
- Multi-axis synchronization
- Automatic holding brake engagement during power loss
- High positioning repeatability
The integrated holding brake prevents unintended shaft movement when electrical power is removed, while the multi-turn encoder preserves position information, reducing startup time and improving machine availability.
Role in Industrial Motion Control Systems
Within industrial automation systems, the MPL-A310P-MJ74AA functions as a precision rotary actuator that converts electronic motion commands into controlled mechanical movement.
Its primary functions include:
- Closed-loop position control
- Precision speed regulation
- Stable torque production
- Multi-turn absolute encoder feedback
- Vertical load holding
- High-speed synchronization
- Continuous-duty operation
- Long-term operational reliability
The combination of an absolute encoder and integrated holding brake makes this motor especially suitable for applications where positioning accuracy and safe load retention are equally important.
Industrial Applications
Packaging Machinery
Typical applications include:
- Filling machines
- Cartoning systems
- Wrapping equipment
- Labeling machines
- Conveyor systems
Robotics
Suitable for:
- Pick-and-place robots
- Six-axis robotic systems
- Assembly robots
- Material handling robots
- Automated workstations
CNC Machinery
Common applications include:
- CNC machining centers
- Milling machines
- Laser cutting equipment
- Precision machine tools
- Multi-axis manufacturing systems
Electronics and Semiconductor Manufacturing
Widely used in:
- PCB assembly
- Semiconductor production
- Precision inspection systems
- Electronic component placement
- Automated manufacturing equipment
Material Handling
Ideal for:
- Automated warehouses
- Conveyor systems
- Sorting equipment
- Packaging logistics
- Palletizing machinery
Installation and System Integration
Before installation, engineers should verify:
- Compatibility with Allen-Bradley Kinetix servo drives
- Motor voltage specifications
- Brake wiring connections
- Encoder cable integrity
- Motor power cable connections
- Mechanical alignment
- Shaft coupling installation
- Protective grounding
- Cooling and ventilation
Recommended Installation Procedure
- Disconnect system power.
- Securely mount the servo motor.
- Install the keyed shaft coupling.
- Connect the motor power cable.
- Connect the encoder feedback cable.
- Connect the 24 V DC brake wiring.
- Configure the servo drive.
- Perform automatic motor identification.
- Configure encoder parameters.
- Verify brake operation.
- Test motor rotation.
- Complete commissioning.
Compatible System Components
| Component | Function |
|---|---|
| Allen-Bradley Kinetix Servo Drive | Servo motion control |
| ControlLogix PLC | Machine controller |
| CompactLogix PLC | Automation controller |
| Motion Controller | Motion command generation |
| Servo Power Cable | Motor power supply |
| Encoder Feedback Cable | Position feedback |
| Flexible Shaft Coupling | Torque transmission |
| Planetary Gearbox | Speed reduction |
| EtherNet/IP Network | Industrial communication |
| HMI Panel | Operator interface |
Recommended Alternative Models
| Model | Product Type | Typical Application |
|---|---|---|
| MPL-A310P-MJ74AA | Multi-Turn Absolute Encoder, Brake | Vertical-axis automation |
| MPL-A310P-MJ72AA | Multi-Turn Absolute Encoder | General precision motion |
| MPL-A310P-HJ74AA | Incremental Encoder, Brake | High-speed motion control |
| MPL-A310P-SJ74AA | Single-Turn Absolute Encoder, Brake | Precision positioning |
| Kinetix VP Series Servo Motors | Premium Servo Motor | Intelligent motion control |
Key Advantages
- MP-Series low-inertia brushless AC servo motor
- 230 V AC voltage class
- 5000 RPM rated speed
- Multi-turn high-resolution absolute encoder
- Integrated 24 V DC holding brake
- Keyed shaft extension
- Compact 100 mm frame size
- 25.4 mm magnet stack length
- SpeedTEC quick-connect connector
- Outstanding positioning accuracy
- Fast dynamic response
- Approximate weight of 2.7 kg
Technical FAQs
What is the Allen-Bradley MPL-A310P-MJ74AA?
The MPL-A310P-MJ74AA is an MP-Series low-inertia brushless AC rotary servo motor equipped with a multi-turn high-resolution absolute encoder, a keyed shaft, and an integrated 24 V DC holding brake.
What is the rated operating voltage?
The motor operates on 230 V AC, while the holding brake uses 24 V DC.
What is the rated operating speed?
The rated operating speed is 5000 RPM.
What type of encoder does the motor use?
It features a multi-turn high-resolution absolute encoder, allowing position retention across multiple shaft revolutions and after power interruptions.
Does this motor include a holding brake?
Yes. The motor includes an integrated 24 V DC electromagnetic holding brake for secure load retention during power-off conditions.
What type of shaft does the motor use?
The motor features a keyed shaft extension for reliable mechanical torque transmission.
What is the frame size?
The motor features a 100 mm IEC metric frame size.
What is the approximate weight?
The motor weighs approximately 2.7 kg.
Which industries commonly use this servo motor?
It is widely used in robotics, CNC machining, packaging machinery, semiconductor manufacturing, electronics assembly, material handling systems, and automated production lines.
Which servo drives are compatible?
The motor is designed for seamless integration with compatible Allen-Bradley Kinetix servo drive systems.
Conclusion
The Allen-Bradley MPL-A310P-MJ74AA Servo Motor is a premium MP-Series low-inertia brushless AC servo motor developed for demanding industrial automation applications. Featuring 230 V AC operation, a 5000 RPM rated speed, a 100 mm frame size, a 25.4 mm magnet stack length, a multi-turn high-resolution absolute encoder, a keyed shaft, and an integrated 24 V DC holding brake, it provides exceptional positioning accuracy, rapid response, reliable load holding, and long-term operational stability.
With its compact construction, approximate weight of 2.7 kg, and compatibility with Allen-Bradley Kinetix motion control systems, the MPL-A310P-MJ74AA is an ideal solution for robotics, CNC machinery, packaging equipment, semiconductor manufacturing, material handling systems, and other precision industrial automation applications.