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Product Overview
The Allen-Bradley MPL-A310F-MJ72AA Servo Motor is a premium MP-Series Low-Inertia Brushless AC Rotary Servo Motor engineered for precision industrial motion control applications. As part of the Rockwell Automation MP-Series servo motor family, this motor delivers exceptional positioning accuracy, rapid acceleration, and reliable torque output for advanced automation equipment.
The MPL-A310F-MJ72AA features a 230 V AC voltage class, a 100 mm IEC metric frame size, a 25.4 mm magnet stack length, a 3000 RPM rated speed, a high-resolution single-turn absolute encoder, a keyed shaft, a SpeedTEC right-angle 180° rotatable DIN connector, and no integrated holding brake. The single-turn absolute encoder provides precise shaft position feedback immediately after power-up, eliminating the need for homing within a single revolution and reducing machine commissioning time.
Designed for seamless integration with Allen-Bradley Kinetix servo drive systems, the motor provides high-performance closed-loop position, speed, and torque control. Its low-inertia rotor enables fast response to motion commands while maintaining excellent repeatability and stable operation.
With a 100 mm frame size and an approximate weight of 2.7 kg, the MPL-A310F-MJ72AA is widely used in packaging machinery, robotics, CNC equipment, semiconductor manufacturing, electronics assembly, material handling systems, printing machinery, and automated production lines.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen-Bradley |
| Model | MPL-A310F-MJ72AA |
| Product Series | MP-Series MPL |
| Product Type | Rotary Servo Motor |
| Motor Type | Low-Inertia Brushless AC Servo Motor |
| Rated Voltage | 230 V AC |
| Rated Speed | 3000 RPM |
| Frame Size | 100 mm |
| Magnet Stack Length | 25.4 mm |
| Continuous Output Power | Approximately 0.46 kW |
| Continuous Torque | Approximately 1.58 Nm |
| Peak Torque | Approximately 3.61 Nm |
| Feedback Device | High-Resolution Single-Turn Absolute Encoder |
| Shaft Type | Keyed Shaft |
| Holding Brake | None |
| Connector Type | SpeedTEC Right-Angle 180° Rotatable DIN Connector |
| Mounting | IEC Metric Flange |
| Cooling Method | Natural Air Cooling |
| Weight | Approximately 2.7 kg |
Function and Working Principle
The Allen-Bradley MPL-A310F-MJ72AA converts electrical power supplied by a compatible servo drive into precise rotary motion while continuously transmitting absolute encoder feedback for accurate closed-loop servo control.
Typical Motion Control Architecture
Motion Controller
↓
Allen-Bradley Kinetix Servo Drive
↓
MPL-A310F-MJ72AA Servo Motor
↓
Mechanical Transmission
↓
Industrial Equipment
During operation, the servo motor performs the following functions:
- Executes high-precision positioning
- Maintains stable speed regulation
- Delivers continuous torque output
- Provides single-turn absolute position feedback
- Supports rapid acceleration and deceleration
- Eliminates homing within one shaft revolution
- Enables synchronized multi-axis motion
- Improves positioning repeatability and production efficiency
The low-inertia rotor and absolute encoder work together to ensure fast dynamic response and highly accurate motion control throughout continuous industrial operation.
Role in Industrial Motion Control Systems
Within industrial automation systems, the MPL-A310F-MJ72AA functions as a precision rotary actuator responsible for converting electronic motion commands into controlled mechanical movement.
Its primary functions include:
- Precision position control
- Closed-loop speed regulation
- Stable torque production
- Single-turn absolute encoder feedback
- High-speed servo response
- Multi-axis synchronization
- Continuous-duty operation
- Accurate repeatable positioning
The single-turn absolute encoder reduces machine startup time and enhances positioning accuracy in applications where the shaft position remains within one revolution.
Industrial Applications
Packaging Machinery
Typical applications include:
- Filling machines
- Cartoning systems
- Wrapping equipment
- Labeling machines
- Conveyor automation
Robotics
Suitable for:
- Pick-and-place robots
- Industrial assembly robots
- Material handling robots
- Automated workstations
- Multi-axis robotic systems
CNC Machinery
Common applications include:
- CNC machining centers
- Precision milling machines
- Laser cutting systems
- Multi-axis machining equipment
- Automated manufacturing cells
Electronics and Semiconductor Manufacturing
Widely used in:
- PCB assembly
- Semiconductor production
- Precision positioning systems
- Inspection equipment
- Electronic component placement
Printing and Converting
Ideal for:
- Digital printing presses
- Web handling systems
- Label production
- Roll-to-roll processing
- Paper converting machinery
Material Handling
Suitable for:
- Automated storage systems
- Conveyor equipment
- Sorting systems
- Packaging logistics
- Palletizing machinery
Installation and System Integration
Before installation, engineers should verify:
- Servo drive compatibility
- Motor voltage specifications
- Encoder cable integrity
- Power cable connections
- Mechanical alignment
- Shaft coupling installation
- Proper grounding
- Cooling conditions
- Servo parameter configuration
Recommended Installation Procedure
- Disconnect system power.
- Mount the servo motor securely.
- Install the shaft coupling.
- Connect the motor power cable.
- Connect the encoder feedback cable.
- Configure the Kinetix servo drive.
- Perform automatic motor identification.
- Configure encoder parameters.
- Tune servo performance.
- Test motor rotation.
- Verify positioning accuracy.
- Complete commissioning.
Compatible System Components
| Component | Function |
|---|---|
| Allen-Bradley Kinetix Servo Drive | Servo motion control |
| ControlLogix / CompactLogix PLC | Machine controller |
| Motion Controller | Motion command generation |
| Servo Power Cable | Motor power supply |
| Absolute Encoder Cable | Position feedback |
| Flexible Coupling | Torque transmission |
| Planetary Gearbox | Speed reduction |
| EtherNet/IP Network | Industrial communication |
| HMI Panel | Operator interface |
| Machine Safety Controller | Functional safety |
Recommended Alternative Models
| Model | Product Type | Recommended Application |
|---|---|---|
| MPL-A310F-MJ72AA | Servo Motor with Single-Turn Absolute Encoder | High-precision positioning |
| MPL-A310F-MJ74AA | Servo Motor with Single-Turn Absolute Encoder & Brake | Vertical-axis applications |
| MPL-A310F-HJ72AA | Servo Motor with Incremental Encoder | General industrial automation |
| MPL-A310F-VJ72AA | Servo Motor with Multi-Turn Absolute Encoder | Advanced positioning systems |
| Kinetix VP Series Servo Motors | Premium Servo Motor | High-performance automation |
Key Advantages
- MP-Series low-inertia brushless AC servo motor
- 230 V AC operation
- High-resolution single-turn absolute encoder
- No homing required within one revolution
- Compact 100 mm frame size
- 3000 RPM rated speed
- 25.4 mm magnet stack length
- SpeedTEC quick-connect interface
- Keyed shaft configuration
- Excellent positioning accuracy
- Fast dynamic response
- Approximate weight of 2.7 kg
Technical FAQs
What is the Allen-Bradley MPL-A310F-MJ72AA?
The MPL-A310F-MJ72AA is an MP-Series low-inertia brushless AC rotary servo motor equipped with a single-turn absolute encoder for precision industrial motion control.
What is the rated operating voltage?
The motor operates on 230 V AC.
What is the rated operating speed?
The rated operating speed is 3000 RPM.
What type of encoder does the motor use?
It uses a high-resolution single-turn absolute encoder, providing immediate shaft position information within one mechanical revolution.
Does this motor include a holding brake?
No. The MPL-A310F-MJ72AA is supplied without an integrated holding brake.
What is the frame size?
The motor features a 100 mm IEC metric frame size.
What is the approximate weight?
The servo motor weighs approximately 2.7 kg.
Which industries commonly use this servo motor?
It is widely used in robotics, packaging machinery, CNC equipment, semiconductor manufacturing, electronics assembly, printing systems, and automated production lines.
What are the advantages of the single-turn absolute encoder?
The encoder provides accurate position feedback immediately after startup, reduces commissioning time, eliminates homing within one revolution, and improves positioning efficiency.
Which servo drives are compatible?
The MPL-A310F-MJ72AA is designed for seamless integration with compatible Allen-Bradley Kinetix servo drive systems, providing reliable high-performance motion control.
Conclusion
The Allen-Bradley MPL-A310F-MJ72AA Servo Motor is a high-performance MP-Series low-inertia brushless AC servo motor developed for demanding industrial automation applications. Featuring 230 V AC operation, a 100 mm frame size, 3000 RPM rated speed, a 25.4 mm magnet stack length, and a high-resolution single-turn absolute encoder, it delivers exceptional positioning accuracy, rapid servo response, and dependable long-term operation.
With its compact construction, approximate weight of 2.7 kg, and compatibility with Allen-Bradley Kinetix servo drive systems, the MPL-A310F-MJ72AA is an ideal solution for machine builders and automation engineers seeking reliable, high-precision motion control across a wide range of industrial applications.