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Product Overview
The Allen-Bradley MPL-A310P-SK74AA Servo Motor is a premium MP-Series Low-Inertia Brushless AC Rotary Servo Motor developed for high-precision industrial motion control applications. As part of the Rockwell Automation MP-Series servo motor family, this motor delivers excellent positioning accuracy, rapid acceleration, smooth torque output, and reliable long-term performance for demanding automation systems. Its key configuration includes 230 V AC operation, a 100 mm IEC metric frame size, a 25.4 mm magnet stack length, 5000 RPM rated speed, a single-turn high-resolution absolute encoder, a keyless shaft extension, a SpeedTEC right-angle 180° rotatable DIN connector, and an integrated 24 V DC electromagnetic holding brake.
Designed for seamless integration with Allen-Bradley Kinetix servo drive systems, the MPL-A310P-SK74AA provides accurate closed-loop position, speed, and torque control. The single-turn absolute encoder enables immediate position recognition after power-up within one shaft revolution, eliminating routine homing procedures and reducing machine startup time. The integrated holding brake securely locks the motor shaft whenever power is removed, making the motor particularly suitable for vertical-axis applications and equipment requiring reliable load retention.
With a 100 mm frame size and an approximate weight of 2.7 kg, the MPL-A310P-SK74AA is widely used in robotics, CNC machine tools, packaging equipment, semiconductor manufacturing, electronics assembly, printing machinery, automated material handling systems, and precision production lines.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen-Bradley |
| Model | MPL-A310P-SK74AA |
| 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 | Keyless 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-SK74AA converts electrical energy 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-A310P-SK74AA Servo Motor
↓
Mechanical Transmission
↓
Industrial Equipment
During operation, the servo motor performs the following functions:
- High-precision position control
- Stable speed regulation
- Continuous torque output
- Single-turn absolute encoder 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 whenever servo power is removed, improving machine safety and ensuring reliable vertical load holding.
Role in Industrial Motion Control Systems
Within industrial automation systems, the MPL-A310P-SK74AA serves as a precision rotary actuator that converts motion commands from the servo drive into accurate mechanical movement.
Its primary functions include:
- Closed-loop position control
- Precision speed regulation
- Stable torque production
- Single-turn absolute encoder feedback
- Reliable load holding
- High-speed synchronization
- Continuous-duty operation
- Long service life
The keyless shaft design minimizes mechanical backlash while providing accurate concentricity and reliable torque transmission.
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 grinding machines
- 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
- Keyless shaft coupling installation
- Protective grounding
- Cooling and ventilation
Recommended Installation Procedure
- Disconnect system power.
- Securely mount the servo motor.
- Install the keyless 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 |
| Keyless 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-SK74AA | Single-Turn Absolute Encoder, Keyless Shaft, Brake | Vertical-axis precision control |
| MPL-A310P-SK72AA | Single-Turn Absolute Encoder, Keyless Shaft | General industrial automation |
| MPL-A310P-MK74AA | Multi-Turn Absolute Encoder, Keyless Shaft, Brake | Complex positioning systems |
| MPL-A310P-HK74AA | Incremental Encoder, Keyless Shaft, Brake | High-speed motion control |
| Kinetix VP Series Servo Motors | Premium Servo Motor | Advanced industrial 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
- Keyless 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-SK74AA?
The MPL-A310P-SK74AA is an MP-Series low-inertia brushless AC rotary servo motor equipped with a single-turn high-resolution absolute encoder, a keyless 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 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 features 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 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 keyless shaft extension, providing precise concentricity and reliable 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 used in robotics, CNC machining, packaging machinery, semiconductor manufacturing, electronics assembly, automated material handling, and high-speed production systems.
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-SK74AA Servo Motor is a premium MP-Series low-inertia brushless AC servo motor designed 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 single-turn high-resolution absolute encoder, a keyless shaft, and an integrated 24 V DC holding brake, it delivers exceptional positioning accuracy, rapid response, and reliable load retention.
With its compact construction, approximate weight of 2.7 kg, and compatibility with Allen-Bradley Kinetix motion control systems, the MPL-A310P-SK74AA provides a dependable and efficient solution for robotics, CNC machinery, semiconductor manufacturing, packaging equipment, material handling systems, and a wide range of advanced industrial automation applications.