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- MPL-A310P-SJ74AA
- Servo Motor
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- 2.7 kg
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Product Overview
The Allen-Bradley MPL-A310P-SJ74AA Servo Motor is a high-performance 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 model combines outstanding positioning accuracy, fast dynamic response, and dependable torque output for advanced automation equipment.
The MPL-A310P-SJ74AA 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 single-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 single-turn absolute encoder enables immediate position recognition after power-up within one shaft revolution, reducing commissioning time and improving machine productivity.
Designed for seamless integration with Allen-Bradley Kinetix servo drive systems, the motor delivers precise closed-loop position, speed, and torque control. The integrated holding brake securely locks the motor shaft whenever power is removed, making it ideal for vertical-axis machinery and applications requiring safe load retention.
With a 100 mm frame size and an approximate weight of 2.7 kg, the MPL-A310P-SJ74AA is widely used in robotics, CNC machining centers, packaging machinery, semiconductor manufacturing, electronics assembly, material handling systems, printing equipment, and automated production lines.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen-Bradley |
| Model | MPL-A310P-SJ74AA |
| 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 | Single-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-SJ74AA converts electrical energy from a compatible servo drive into precise rotary motion while continuously transmitting single-turn absolute encoder feedback for accurate closed-loop servo control.
Typical Motion Control Architecture
Motion Controller
↓
Allen-Bradley Kinetix Servo Drive
↓
MPL-A310P-SJ74AA Servo Motor
↓
Mechanical Transmission
↓
Industrial Equipment
During operation, the servo motor performs the following functions:
- High-precision position control
- Accurate speed regulation
- Stable torque output
- Single-turn absolute position feedback
- Rapid acceleration and deceleration
- Multi-axis synchronization
- Automatic brake engagement during power loss
- Excellent positioning repeatability
The integrated 24 V DC holding brake prevents unintended shaft movement when servo power is removed, ensuring reliable load holding and improved operational safety.
Role in Industrial Motion Control Systems
Within industrial automation systems, the MPL-A310P-SJ74AA 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
- Single-turn absolute encoder feedback
- Reliable vertical load holding
- High-speed synchronization
- Continuous-duty operation
- Long-term operational reliability
The combination of a single-turn absolute encoder and integrated holding brake provides fast startup, high positioning accuracy, and dependable operation in demanding industrial environments.
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 systems
- Precision machine tools
- Multi-axis manufacturing equipment
Electronics and Semiconductor Manufacturing
Widely used in:
- PCB assembly
- Semiconductor production
- Precision inspection equipment
- Electronic component placement
- Automated manufacturing systems
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-SJ74AA | Single-Turn Absolute Encoder, Keyed Shaft, Brake | Vertical-axis precision control |
| MPL-A310P-SJ72AA | Single-Turn Absolute Encoder, Keyed Shaft | General automation |
| MPL-A310P-MJ74AA | Multi-Turn Absolute Encoder, Keyed Shaft, Brake | Complex positioning systems |
| MPL-A310P-HJ74AA | Incremental Encoder, Keyed Shaft, Brake | High-speed motion control |
| Kinetix VP Series Servo Motors | Premium Servo Motor | Advanced motion automation |
Key Advantages
- MP-Series low-inertia brushless AC servo motor
- 230 V AC voltage class
- 5000 RPM rated speed
- Single-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
- Excellent dynamic response
- Approximate weight of 2.7 kg
Technical FAQs
What is the Allen-Bradley MPL-A310P-SJ74AA?
The MPL-A310P-SJ74AA is an MP-Series low-inertia brushless AC rotary servo motor featuring a single-turn high-resolution absolute encoder, keyed shaft, and integrated 24 V DC holding brake.
What is the rated operating voltage?
The motor operates on 230 V AC, while the holding brake requires 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 uses a single-turn high-resolution absolute encoder, providing absolute position feedback within one shaft revolution.
Does this motor include a holding brake?
Yes. The motor is equipped with an integrated 24 V DC electromagnetic holding brake for reliable load holding.
What type of shaft does the motor use?
The motor features a keyed shaft extension for secure and dependable torque transmission.
What is the frame size?
The motor has 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 applied in robotics, CNC machining, packaging machinery, semiconductor manufacturing, electronics assembly, automated material handling, and high-speed production equipment.
Which servo drives are compatible?
The motor is designed for compatibility with Allen-Bradley Kinetix servo drive systems.
Conclusion
The Allen-Bradley MPL-A310P-SJ74AA Servo Motor is a premium MP-Series low-inertia brushless AC servo motor developed for high-performance industrial automation. Combining 230 V AC operation, a 5000 RPM rated speed, a 100 mm frame size, a 25.4 mm magnet stack, a single-turn high-resolution absolute encoder, a keyed shaft, and an integrated 24 V DC holding brake, it delivers excellent positioning accuracy, rapid response, and secure load retention.
With its compact design, approximate weight of 2.7 kg, and compatibility with Allen-Bradley Kinetix motion control platforms, the MPL-A310P-SJ74AA provides a dependable solution for robotics, CNC machinery, packaging equipment, semiconductor production, material handling systems, and other advanced industrial automation applications.