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- MPL-A320H-MK72AA
- Servo Motor
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- 100 mm
- 3.7 kg
- Xiamen, China
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Product Overview
The Allen Bradley MPL-A320H-MK72AA Servo Motor is a premium Kinetix MP-Series MPL low-inertia brushless AC servo motor engineered for demanding industrial motion control applications that require exceptional positioning accuracy, rapid dynamic response, and reliable continuous-duty performance. As a member of the Rockwell Automation MP-Series MPL family, this servo motor is optimized for use with Kinetix servo drives, delivering outstanding speed, torque, and positioning performance in advanced automation systems. The MK72AA configuration features a multi-turn high-resolution absolute encoder, a SpeedTEC right-angle 180° rotatable DIN connector, and a keyless shaft extension without a holding brake, making it suitable for precision applications requiring high concentricity and backlash-free shaft coupling.
Featuring a 100 mm frame size and an approximate weight of 3.7 kg, the MPL-A320H-MK72AA combines compact dimensions with excellent power density. Its low-inertia rotor enables rapid acceleration and deceleration while maintaining smooth torque output and highly repeatable positioning accuracy.
Designed for the 230 V AC servo platform with a maximum rated speed of 3500 rpm, the motor is widely used in packaging machinery, robotics, CNC machine tools, semiconductor equipment, electronic assembly systems, pharmaceutical production, material handling systems, and automated manufacturing lines.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen Bradley (Rockwell Automation) |
| Model | MPL-A320H-MK72AA |
| Product Series | Kinetix MP-Series MPL |
| Product Type | AC Servo Motor |
| Motor Type | Low-Inertia Permanent Magnet Brushless Servo Motor |
| Voltage Class | 230 VAC |
| Frame Size | 100 mm |
| Rated Maximum Speed | 3500 rpm |
| Feedback Device | Multi-turn High-Resolution Absolute Encoder |
| Brake | No Brake |
| Shaft Type | Keyless Shaft Extension |
| Connector Type | SpeedTEC Right-Angle 180° Rotatable DIN Connector |
| Mounting Standard | IEC Metric Flange |
| Cooling Method | Natural Convection |
| Weight | Approximately 3.7 kg |
Function and Working Principle
The MPL-A320H-MK72AA converts electrical power supplied by a compatible Kinetix servo drive into highly accurate rotary motion while continuously transmitting absolute encoder feedback for closed-loop control.
Typical Motion Control Architecture
Motion Controller
↓
Kinetix Servo Drive
↓
MPL-A320H-MK72AA Servo Motor
↓
Keyless Coupling
↓
Machine Axis
↓
Industrial Equipment
The integrated multi-turn absolute encoder continuously reports shaft position to the servo drive, enabling precise regulation of position, speed, and torque. The keyless shaft design provides improved concentricity, excellent torque transmission, and minimizes backlash when used with precision locking assemblies.
Primary operating functions include:
- Precision positioning
- Closed-loop speed regulation
- Dynamic torque control
- High-speed indexing
- Rapid acceleration and deceleration
- Smooth low-speed operation
- Multi-turn absolute position feedback
- Electronic cam synchronization
- Coordinated multi-axis motion
- High-precision keyless shaft power transmission
The low-inertia rotor minimizes settling time and increases machine productivity.
Role in Industrial Control Systems
Within industrial automation systems, the MPL-A320H-MK72AA serves as the precision motion actuator responsible for executing positioning commands generated by advanced motion controllers.
Typical automation architecture:
ControlLogix PLC
↓
Motion Control Module
↓
Kinetix Servo Drive
↓
MPL-A320H-MK72AA Servo Motor
↓
Precision Keyless Coupling
↓
Machine Axis
↓
Industrial Equipment
The servo motor provides highly accurate and repeatable motion, enabling synchronized machine operation, improved production efficiency, and precise process control.
Industrial Applications
Packaging Machinery
Typical applications include:
- Cartoning machines
- Filling equipment
- Wrapping machines
- Labeling systems
- Pick-and-place equipment
Robotics
Suitable for:
- Industrial robot arms
- SCARA robots
- Delta robots
- Six-axis robotic systems
- Automated assembly cells
CNC Machinery
Frequently installed in:
- Machining centers
- CNC milling machines
- Precision lathes
- Laser cutting equipment
- Grinding machines
Semiconductor and Electronics Manufacturing
Ideal for:
- Wafer handling systems
- PCB assembly equipment
- Precision positioning systems
- Inspection machinery
- Cleanroom automation
Material Handling
Common applications include:
- Conveyor positioning
- Warehouse automation
- Automated storage systems
- Sorting equipment
- Palletizing machinery
Pharmaceutical and Food Processing
Widely used in:
- Packaging lines
- Filling systems
- Inspection equipment
- Conveyor automation
- Precision production machinery
Installation and System Integration
Before installation, engineers should verify:
- Kinetix servo drive compatibility
- Mechanical mounting dimensions
- Keyless coupling compatibility
- Shaft alignment
- Encoder cable connections
- Motor power wiring
- Protective grounding
- Mechanical load capacity
- Environmental conditions
- Motion controller configuration
Recommended Installation Procedure
- Disconnect system power.
- Securely mount the servo motor.
- Install the keyless locking assembly or coupling.
- Align the motor shaft with the driven mechanism.
- Connect the motor power cable.
- Connect the encoder feedback cable.
- Verify protective grounding.
- Restore system power.
- Configure motor parameters.
- Perform motor identification.
- Test motor rotation.
- Tune servo parameters.
- Verify positioning accuracy.
- Perform functional testing.
- Complete commissioning documentation.
Proper installation maximizes positioning accuracy and extends motor service life.
Compatible System Components
| Component | Function |
|---|---|
| Allen Bradley Kinetix Servo Drive | Servo motor control |
| ControlLogix PLC | Motion controller |
| CompactLogix PLC | Machine automation |
| MPL-A320H-MK72AA | Precision servo motor |
| Motion Control Module | Multi-axis synchronization |
| EtherNet/IP Network | Industrial communication |
| PanelView HMI | Operator interface |
| Keyless Locking Assembly | Torque transmission |
| Ball Screw Assembly | Linear positioning |
| Industrial Power Supply | System power |
Recommended Alternative Models
| Model | Product Type | Typical Application |
|---|---|---|
| MPL-A320H-MK72AA | AC Servo Motor | Absolute encoder with keyless shaft |
| MPL-A320H-MK74AA | AC Servo Motor | Keyless shaft with holding brake |
| MPL-A320H-MJ72AA | AC Servo Motor | Keyed shaft without brake |
| MPL-A320H-MJ74AA | AC Servo Motor | Keyed shaft with holding brake |
| Kinetix VP Series | AC Servo Motor | Advanced industrial motion control |
Key Advantages
- Compact 100 mm frame size
- Low-inertia rotor for rapid dynamic response
- Rated maximum speed of 3500 rpm
- Integrated multi-turn high-resolution absolute encoder
- Precision keyless shaft extension
- SpeedTEC quick-connect 180° rotatable connector
- High positioning accuracy
- Seamless integration with Allen Bradley Kinetix servo drives
- Rugged industrial construction
- Suitable for continuous industrial operation
- Approximate weight 3.7 kg
Technical FAQs
What is the Allen Bradley MPL-A320H-MK72AA?
The MPL-A320H-MK72AA is a Kinetix MP-Series MPL low-inertia AC servo motor equipped with a multi-turn high-resolution absolute encoder and a keyless shaft extension for precision industrial motion control.
What is its primary function?
Its primary function is to provide precise closed-loop control of position, speed, and torque for automated machinery.
What is the frame size?
The motor features a 100 mm frame size.
What is the approximate weight?
The servo motor weighs approximately 3.7 kg.
Does this model include a holding brake?
No. The MPL-A320H-MK72AA is supplied without a holding brake.
What is the advantage of a keyless shaft?
A keyless shaft provides high-precision torque transmission, improved concentricity, reduced backlash, and simplified coupling installation, making it well suited for precision motion systems.
Which drive systems are compatible?
It is designed for use with compatible Allen Bradley Kinetix servo drives and Logix-based motion control platforms.
Which industries commonly use this servo motor?
Typical industries include packaging, robotics, semiconductor manufacturing, CNC machining, pharmaceutical production, food processing, material handling, electronics manufacturing, and automated assembly.
What type of feedback does the motor use?
The motor uses a multi-turn high-resolution absolute encoder, providing accurate position feedback while retaining multi-revolution position information.
Where is the servo motor typically installed?
It is commonly installed on robotic axes, CNC machines, conveyor positioning systems, packaging equipment, semiconductor machinery, and other precision manufacturing equipment.
Conclusion
The Allen Bradley MPL-A320H-MK72AA Servo Motor is a compact, high-performance motion solution designed for demanding industrial automation applications. Featuring a 100 mm frame size, a low-inertia rotor, a multi-turn high-resolution absolute encoder, a keyless shaft extension, and a SpeedTEC quick-connect interface, it delivers exceptional positioning accuracy, rapid dynamic response, and dependable long-term performance.
With an approximate weight of 3.7 kg, the MPL-A320H-MK72AA integrates easily into advanced machine designs while providing reliable precision motion control. When combined with compatible Allen Bradley Kinetix servo drives, ControlLogix PLCs, motion controllers, and EtherNet/IP communication systems, it enhances machine productivity, improves positioning accuracy, and supports long-term industrial reliability.