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- 2.7 kg
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Product Overview
The Allen-Bradley MPL-A310F-SJ72AA Servo Motor is a premium MP-Series Low-Inertia Brushless AC Rotary Servo Motor designed for high-performance industrial motion control applications. As part of the Rockwell Automation MP-Series servo motor family, this model provides outstanding positioning accuracy, rapid response, and reliable torque output for advanced automation equipment.
The MPL-A310F-SJ72AA 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 single-turn high-resolution absolute encoder, a keyed shaft extension, a SpeedTEC right-angle 180° rotatable DIN connector, and no integrated holding brake. The single-turn absolute encoder provides immediate shaft position feedback after power-up within one mechanical revolution, reducing machine commissioning time and improving motion accuracy.
Designed for seamless integration with Allen-Bradley Kinetix servo drive systems, the motor delivers accurate closed-loop position, speed, and torque control while ensuring smooth operation and excellent repeatability. Its low-inertia rotor enables fast acceleration and deceleration, making it suitable for demanding industrial automation applications.
With a 100 mm frame size and an approximate weight of 2.7 kg, the MPL-A310F-SJ72AA is widely used in robotics, CNC machine tools, packaging equipment, semiconductor manufacturing, electronics assembly, printing machinery, and automated production systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen-Bradley |
| Model | MPL-A310F-SJ72AA |
| 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 | Single-Turn High-Resolution 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-SJ72AA converts electrical power supplied by a compatible servo drive into precise rotary motion while continuously transmitting single-turn absolute encoder feedback for high-performance closed-loop servo control.
Typical Motion Control Architecture
Motion Controller
↓
Allen-Bradley Kinetix Servo Drive
↓
MPL-A310F-SJ72AA Servo Motor
↓
Mechanical Transmission
↓
Industrial Equipment
During operation, the servo motor performs the following functions:
- Executes precision positioning commands
- Maintains accurate 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
The low-inertia rotor minimizes response time, enabling smooth machine operation and increased production efficiency.
Role in Industrial Motion Control Systems
Within industrial automation systems, the MPL-A310F-SJ72AA serves as a precision rotary actuator that converts electronic motion commands into highly accurate 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
- High positioning repeatability
The keyed shaft configuration provides reliable torque transmission while allowing straightforward mechanical installation.
Industrial Applications
Packaging Machinery
Typical applications include:
- Filling machines
- Cartoning systems
- Wrapping equipment
- Labeling machines
- Conveyor automation
Robotics
Suitable for:
- Pick-and-place robots
- Assembly robots
- Six-axis robotic systems
- Material handling robots
- Automated workstations
CNC Machinery
Common applications include:
- CNC machining centers
- Milling machines
- Laser cutting systems
- Precision machining equipment
- Multi-axis manufacturing cells
Electronics and Semiconductor Manufacturing
Widely used in:
- PCB assembly
- Semiconductor production
- Automated inspection systems
- Precision positioning equipment
- Electronic component placement
Material Handling
Suitable 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
- Encoder cable integrity
- Motor power cable connections
- Mechanical alignment
- Shaft coupling installation
- Protective 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 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 PLC | Machine controller |
| CompactLogix PLC | Automation controller |
| Motion Controller | Motion command generation |
| Servo Power Cable | Motor power supply |
| Absolute Encoder 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-A310F-SJ72AA | Single-Turn Absolute Encoder, Keyed Shaft | High-precision positioning |
| MPL-A310F-SJ74AA | Single-Turn Absolute Encoder, Keyed Shaft & Brake | Vertical-axis machinery |
| MPL-A310F-MJ72AA | Multi-Turn Absolute Encoder | Advanced positioning systems |
| MPL-A310F-HJ72AA | Incremental Encoder | General industrial automation |
| Kinetix VP Series Servo Motors | Premium Servo Motor | High-performance motion control |
Key Advantages
- MP-Series low-inertia brushless AC servo motor
- 230 V AC operation
- Single-turn high-resolution absolute encoder
- No brake configuration
- Keyed shaft extension
- Compact 100 mm frame size
- 3000 RPM rated speed
- 25.4 mm magnet stack length
- SpeedTEC quick-connect interface
- Fast dynamic response
- Excellent positioning accuracy
- Approximate weight of 2.7 kg
Technical FAQs
What is the Allen-Bradley MPL-A310F-SJ72AA?
The MPL-A310F-SJ72AA is an MP-Series low-inertia brushless AC rotary servo motor equipped with a single-turn high-resolution absolute encoder and a keyed shaft, designed 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 single-turn high-resolution absolute encoder, providing immediate shaft position feedback within one mechanical revolution.
Does this motor include a holding brake?
No. The MPL-A310F-SJ72AA is supplied without an integrated holding brake.
What type of shaft does the motor use?
The motor features a keyed shaft extension for secure 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, and automated production systems.
Which servo drives are compatible?
The MPL-A310F-SJ72AA is designed for seamless integration with compatible Allen-Bradley Kinetix servo drive systems.
Conclusion
The Allen-Bradley MPL-A310F-SJ72AA Servo Motor is a reliable MP-Series low-inertia brushless AC servo motor engineered 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, a single-turn high-resolution absolute encoder, and a keyed shaft, it delivers exceptional positioning accuracy, rapid response, and dependable long-term performance.
With its compact construction, approximate weight of 2.7 kg, and compatibility with Allen-Bradley Kinetix motion control systems, the MPL-A310F-SJ72AA is an ideal solution for robotics, CNC equipment, packaging machinery, semiconductor manufacturing, and a broad range of precision industrial automation applications.