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- MPL-A310F-MJ74AA
- Servo Motor
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- 100 mm
- 2.7 kg
- Xiamen, China
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Product Overview
The Allen-Bradley MPL-A310F-MJ74AA Servo Motor is a high-performance MP-Series Low-Inertia Brushless AC Rotary Servo Motor developed for precision industrial motion control applications. As part of the Rockwell Automation MP-Series servo motor family, this model combines excellent dynamic response, high positioning accuracy, and reliable torque output for demanding automation systems.
The MPL-A310F-MJ74AA 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 multi-turn absolute encoder, a keyed shaft extension, a SpeedTEC right-angle 180° rotatable DIN connector, and an integrated 24 V DC electromagnetic holding brake. This configuration allows the motor to retain absolute position information across multiple shaft revolutions while securely holding the load whenever system power is removed.
Designed for seamless integration with Allen-Bradley Kinetix servo drive systems, the motor delivers precise closed-loop position, speed, and torque control while minimizing commissioning time through its multi-turn absolute feedback technology. The low-inertia rotor enables rapid acceleration and deceleration, making it ideal for high-speed industrial automation.
With a 100 mm frame size and an approximate weight of 2.7 kg, the MPL-A310F-MJ74AA is widely used in robotics, CNC machinery, packaging equipment, semiconductor manufacturing, material handling systems, electronics assembly, and automated production lines.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen-Bradley |
| Model | MPL-A310F-MJ74AA |
| Product Series | MP-Series MPL |
| Product Type | Rotary Servo Motor |
| Motor Type | Low-Inertia Brushless AC Servo Motor |
| Rated Voltage | 230 V AC |
| Holding Brake Voltage | 24 V DC |
| Rated Speed | 3000 RPM |
| 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 |
| Weight | Approximately 2.7 kg |
Function and Working Principle
The Allen-Bradley MPL-A310F-MJ74AA converts electrical energy from a compatible servo drive into precise rotary motion while continuously transmitting multi-turn absolute encoder feedback for high-performance closed-loop motion control.
Typical Motion Control Architecture
Motion Controller
↓
Allen-Bradley Kinetix Servo Drive
↓
MPL-A310F-MJ74AA Servo Motor
↓
Mechanical Transmission
↓
Industrial Equipment
During operation, the servo motor performs the following functions:
- Executes precision positioning commands
- Provides stable speed regulation
- Delivers continuous torque output
- Supplies multi-turn absolute position feedback
- Eliminates homing after power cycling
- Supports rapid acceleration and deceleration
- Activates the integrated holding brake during power loss
- Enables synchronized multi-axis motion
The integrated 24 V DC holding brake securely locks the motor shaft when servo power is removed, making the motor particularly suitable for vertical-axis machinery and suspended-load applications.
Role in Industrial Motion Control Systems
Within industrial automation systems, the MPL-A310F-MJ74AA functions as a precision rotary actuator that converts electronic motion commands into accurate mechanical movement.
Its primary functions include:
- Precision position control
- Closed-loop speed regulation
- Stable torque production
- Multi-turn absolute encoder feedback
- Vertical load holding
- Multi-axis synchronization
- Continuous-duty operation
- High positioning repeatability
The multi-turn absolute encoder allows the controller to identify the exact shaft position immediately after startup without requiring a homing sequence.
Industrial Applications
Packaging Machinery
Typical applications include:
- Filling machines
- Cartoning systems
- Wrapping equipment
- Labeling machines
- Conveyor automation
Robotics
Suitable for:
- Six-axis robots
- Pick-and-place 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 processing
- Precision positioning systems
- Inspection equipment
- Automated component placement
Printing and Converting
Ideal for:
- Digital printing presses
- Roll-to-roll processing
- Web handling systems
- Label production
- Paper converting machinery
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 requirements
- Brake power supply
- Encoder cable integrity
- Motor power cable connections
- Mechanical alignment
- Shaft coupling installation
- Protective grounding
- Cooling and ventilation
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.
- Connect the 24 V DC brake wiring.
- Configure the Kinetix servo drive.
- Perform automatic motor identification.
- Configure encoder parameters.
- Verify brake operation.
- Test motor rotation.
- Complete system commissioning.
Compatible System Components
| Component | Function |
|---|---|
| Allen-Bradley Kinetix Servo Drive | Servo motion control |
| ControlLogix PLC | Machine control |
| CompactLogix PLC | Automation 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 |
Recommended Alternative Models
| Model | Product Type | Typical Application |
|---|---|---|
| MPL-A310F-MJ74AA | Multi-Turn Absolute Encoder with Brake | Vertical-axis precision motion |
| MPL-A310F-MJ72AA | Multi-Turn Absolute Encoder | General automation |
| MPL-A310F-HJ74AA | Incremental Encoder with Brake | Standard servo control |
| MPL-A310F-VJ74AA | Advanced Absolute Feedback Servo Motor | High-end motion systems |
| Kinetix VP Series Servo Motors | Premium Servo Motor | Advanced industrial automation |
Key Advantages
- MP-Series low-inertia brushless AC servo motor
- 230 V AC operation
- High-resolution multi-turn absolute encoder
- Integrated 24 V DC holding brake
- 100 mm IEC frame size
- 3000 RPM rated speed
- 25.4 mm magnet stack length
- SpeedTEC quick-connect interface
- Keyed shaft configuration
- Eliminates homing after power restoration
- Excellent positioning accuracy
- Approximate weight of 2.7 kg
Technical FAQs
What is the Allen-Bradley MPL-A310F-MJ74AA?
The MPL-A310F-MJ74AA is an MP-Series low-inertia brushless AC rotary servo motor equipped with a multi-turn high-resolution absolute encoder 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 3000 RPM.
What type of encoder does the motor use?
It uses a multi-turn high-resolution absolute encoder, which retains shaft position information even after power is removed.
Does this motor include a holding brake?
Yes. The motor includes an integrated 24 V DC electromagnetic holding brake for secure load retention.
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 machinery, semiconductor manufacturing, packaging equipment, electronics assembly, printing systems, and automated production lines.
What are the benefits of the multi-turn absolute encoder?
The encoder provides immediate position recognition after startup, eliminates homing procedures, reduces commissioning time, and improves overall machine efficiency.
Which servo drives are compatible?
The MPL-A310F-MJ74AA is designed for seamless integration with compatible Allen-Bradley Kinetix servo drive systems for high-performance industrial motion control.
Conclusion
The Allen-Bradley MPL-A310F-MJ74AA Servo Motor is a high-performance 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 multi-turn high-resolution absolute encoder, and an integrated 24 V DC holding brake, it delivers outstanding positioning accuracy, rapid response, and dependable load-holding capability.
With its compact construction, approximate weight of 2.7 kg, and compatibility with Allen-Bradley Kinetix servo drive systems, the MPL-A310F-MJ74AA provides a reliable and efficient motion control solution for robotics, CNC equipment, packaging machinery, semiconductor manufacturing, and a broad range of high-precision industrial automation applications.