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- MPL-A320P-SJ72AA
- Servo Motor
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- 100 mm
- 3.7 kg
- Xiamen, China
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Product Overview
The Allen Bradley MPL-A320P-SJ72AA Servo Motor is a high-performance low-inertia AC brushless servo motor designed to meet the demanding requirements of modern industrial motion control systems. As a member of the Allen Bradley MP-Series (MPL) servo motor family, this model provides excellent positioning accuracy, fast response, and reliable continuous-duty performance for precision automation applications.
Designed for seamless integration with Allen Bradley Kinetix servo drives, the MPL-A320P-SJ72AA features a 100 mm frame size, 230 V AC voltage class, 5000 RPM rated speed, a single-turn high-resolution absolute encoder, and a keyed shaft configuration. This version is supplied without an integrated holding brake, making it an ideal solution for machinery that incorporates external braking mechanisms or does not require load holding during power loss.
Its compact size, high power density, and advanced feedback technology make it suitable for robotics, packaging equipment, CNC machine tools, semiconductor manufacturing, electronic assembly, material handling systems, pharmaceutical machinery, and many other industrial automation applications.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Allen Bradley |
| Model | MPL-A320P-SJ72AA |
| Product Series | MP-Series MPL |
| Product Type | AC Brushless Servo Motor |
| Voltage Class | 230 V AC |
| Frame Size | 100 mm |
| Magnet Stack Length | 50.8 mm (2.0 in.) |
| Rated Speed | 5000 RPM |
| Continuous Rated Power | 1.3 kW |
| Continuous Stall Torque | 3.05 Nm |
| Peak Torque | 7.91 Nm |
| Feedback Type | Single-turn High-Resolution Absolute Encoder |
| Feedback Protocol | Hiperface |
| Shaft Type | Keyed Shaft |
| Brake | No Brake |
| Connector Type | SpeedTEC DIN Connector, Right Angle, 180° Rotatable |
| Mounting | IEC Metric Flange Mount |
| Enclosure Rating | IP50 (IP66 with optional shaft seal) |
| Weight | 3.7 kg |
| Maximum Operating Temperature | 40°C |
| Application | Industrial Motion Control Systems |
Function and Working Principle
The Allen Bradley MPL-A320P-SJ72AA servo motor converts electrical energy into precise rotary motion through a closed-loop motion control system. The motor operates together with a compatible Allen Bradley Kinetix servo drive, which continuously regulates current, speed, and torque based on real-time feedback from the integrated single-turn absolute encoder.
The encoder continuously monitors the rotor position and immediately transmits position information to the servo controller. The controller compares the actual motor position with the programmed command position and automatically adjusts motor output whenever deviations occur. This closed-loop process provides exceptional positioning accuracy, smooth operation, and rapid dynamic response.
Because this model utilizes a single-turn encoder, it accurately measures shaft position within one complete revolution, making it suitable for many standard positioning and indexing applications where multi-turn position retention is unnecessary.
The low-inertia rotor design provides several operational benefits, including:
- High-speed acceleration and deceleration
- Excellent positioning accuracy
- Smooth torque delivery
- Fast dynamic response
- High repeatability
- Stable closed-loop motion control
Role in Industrial Control Systems
Within industrial automation systems, the MPL-A320P-SJ72AA functions as the primary motion actuator responsible for executing positioning commands generated by PLCs, motion controllers, and servo drives.
The motor supports various precision motion functions, including:
- Position control
- Speed regulation
- Torque control
- Electronic cam applications
- Indexing operations
- Multi-axis synchronization
Its fast response and accurate encoder feedback enable manufacturers to improve production efficiency, minimize positioning errors, and maintain consistent product quality across automated production processes.
Industrial Applications
The Allen Bradley MPL-A320P-SJ72AA is widely used in numerous industrial sectors, including:
- Packaging Machinery
- Robotics and Automation
- CNC Machine Tools
- Electronics Manufacturing
- Semiconductor Production
- Pharmaceutical Equipment
- Food and Beverage Processing
- Printing Machinery
- Material Handling Systems
- Conveyor Automation
- Pick-and-Place Machines
- Textile Manufacturing
- Automated Warehousing
- Automotive Assembly Lines
- Precision Manufacturing Equipment
Its compact dimensions and precise motion characteristics make it an ideal choice for equipment requiring high-speed, accurate rotary motion.
Installation and System Integration
Proper installation helps maximize motor performance and service life.
Recommended installation procedures include:
- Mount the motor securely using the IEC metric flange.
- Ensure accurate shaft alignment with the driven load.
- Install appropriate flexible couplings where required.
- Connect power and feedback cables using the SpeedTEC connector system.
- Configure encoder parameters within the Kinetix servo drive.
- Verify encoder communication before machine startup.
- Maintain adequate cooling and ventilation.
- Separate motor cables from high-voltage power wiring to minimize electrical interference.
Following proper installation procedures improves positioning accuracy, reduces vibration, and enhances long-term system reliability.
Compatible System Components
The MPL-A320P-SJ72AA is commonly integrated with:
- Allen Bradley Kinetix 2000 Servo Drives
- Allen Bradley Kinetix 300 Servo Drives
- Allen Bradley Kinetix 350 Servo Drives
- Allen Bradley Kinetix 5500 Servo Drives
- Allen Bradley Kinetix 6000 Servo Drives
- Allen Bradley Kinetix 6200 Servo Drives
- Allen Bradley Kinetix 6500 Servo Drives
- Allen Bradley Kinetix 7000 Servo Drives
- Allen Bradley Ultra 3000 Servo Drives
- Allen Bradley ControlLogix Controllers
- Allen Bradley CompactLogix Controllers
- Allen Bradley GuardLogix Controllers
- MP-Series Motor Power Cables
- MP-Series Feedback Cables
- Motion Interface Modules
- Precision Gearboxes
Together, these components provide a reliable and scalable motion control solution for advanced industrial automation systems.
Recommended Alternative Models
Depending on machine requirements and feedback options, the following Allen Bradley servo motors may also be considered:
| Model | Type | Key Feature | Application |
|---|---|---|---|
| MPL-A320P-MJ72AA | AC Servo Motor | Multi-turn Absolute Encoder | Precision Motion Control |
| MPL-A320P-SJ74AA | AC Servo Motor | Single-turn Encoder with Holding Brake | Vertical Axis Applications |
| MPL-A320P-MK72AA | AC Servo Motor | Single-turn Encoder, Keyless Shaft | High-Speed Automation |
| MPL-A320P-MK74AA | AC Servo Motor | Keyless Shaft with Holding Brake | Heavy-Duty Motion Systems |
| MPL-B320P-SJ72AA | AC Servo Motor | 460 V AC Version | High-Power Industrial Equipment |
Key Advantages
- Compact 100 mm frame design
- High-performance low-inertia rotor
- Single-turn high-resolution absolute encoder
- Rated speed up to 5000 RPM
- Keyed shaft for reliable mechanical transmission
- No holding brake for flexible machine configurations
- Fast acceleration and excellent dynamic response
- High positioning accuracy and repeatability
- Fully compatible with Allen Bradley Kinetix motion systems
- Designed for continuous industrial operation
Technical FAQs
What is the primary function of the MPL-A320P-SJ72AA?
It provides accurate rotary motion for industrial machinery operating within closed-loop servo control systems.
Does this model include a holding brake?
No. The MPL-A320P-SJ72AA is supplied without an integrated holding brake and is intended for applications where external braking or mechanical locking is used.
Which motion control systems are compatible?
The motor is compatible with multiple Allen Bradley Kinetix servo drive platforms and Logix-based motion control systems, providing reliable positioning and synchronized multi-axis control.
Conclusion
The Allen Bradley MPL-A320P-SJ72AA Servo Motor is a precision-engineered industrial motion control solution designed for applications requiring high-speed operation, accurate positioning, and dependable long-term performance. Featuring a 100 mm frame size, 230 V AC operation, 5000 RPM rated speed, 1.3 kW continuous output, a single-turn high-resolution absolute encoder, and a keyed shaft without an integrated brake, it delivers excellent dynamic response while maintaining smooth and reliable motion control.
Whether installed in packaging machinery, robotic systems, CNC equipment, semiconductor production lines, or automated manufacturing facilities, the MPL-A320P-SJ72AA provides the precision, efficiency, and durability required to support modern industrial automation and maximize production performance.