Brand:Allen Bradley PLC Item No.:MPL-A320P-HK72AA Product Origin:USA Product Dimensions:Frame Size: 100 mm Product Weight:3.7 kg Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
The Allen-Bradley MPL-A320P-HK72AA is designed for applications where fast and repeatable motion is more important than conventional constant-speed motor operation. Its low-inertia architecture allows the motor to respond quickly to changes in the commanded motion profile.
The motor uses a 230 V armature voltage and a 100 mm frame with a 50.8 mm magnet stack. Its 5000 rpm speed rating places it among the higher-speed configurations in the MPL family, making it suitable for machinery where rapid rotary movement is part of the production process.
Closed-loop control is supported by the integrated 2000-line incremental encoder. Unlike an open-loop motor, the servo system can use encoder feedback to determine the actual position and speed of the motor shaft. This is particularly important for indexing and positioning applications.
The motor's keyless shaft extension provides a straightforward mechanical interface for compatible couplings. Correct alignment remains essential, particularly when the motor is operated at high speed, because coupling misalignment or excessive mechanical runout can negatively affect servo performance and component life.
The right-angle SpeedTEC DIN connector is another practical feature. Its 180-degree rotational capability gives machine builders flexibility when deciding where the motor cable should exit and how wiring should be routed through the equipment.
The no-brake configuration is appropriate for applications where the machine does not require the motor to mechanically hold a load after power is removed. For gravity-loaded axes, engineers should evaluate the holding requirements separately before selecting this configuration.
The MPL-A320P-HK72AA has also reached discontinued status from the manufacturer, with an engineering replacement identified by the manufacturer. For maintenance and replacement projects, engineers should therefore verify the required series, application compatibility, and replacement configuration before placing the motor into a new system.
Technical Specifications
Parameter
Specification
Brand
Allen-Bradley
Manufacturer
Rockwell Automation
Model
MPL-A320P-HK72AA
Product Family
MP-Series MPL
Product Type
AC Rotary Servo Motor
Motor Design
Low-Inertia Brushless Servo Motor
Armature Voltage
230 V AC
Voltage Class
200 V
Frame Size
100 mm
Magnet Stack Length
50.8 mm
Rated Speed
5000 rpm
Feedback
Incremental Encoder
Encoder Resolution
2000 Lines/Revolution
Shaft Configuration
Keyless Shaft Extension
Brake
No Brake
Connector
SpeedTEC DIN Connector
Connector Position
Right Angle
Connector Rotation
180° Rotatable
Mounting
IEC Metric, Free Mounting Holes
Frame Type
100 mm
Weight
3.70 kg (8.16 lb)
The 100 mm frame provides a compact mounting format for automated machinery, while the 5000 rpm capability makes correct mechanical installation particularly important. Shaft alignment, coupling selection, encoder wiring, grounding, and cable routing should all be verified before high-speed commissioning.
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For replacement applications, the complete catalog number should be checked rather than selecting a motor solely according to frame size. Feedback type, speed, brake configuration, shaft design, magnet stack, connector arrangement, and drive compatibility all affect the suitability of a replacement.
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The Allen-Bradley MPL-A320P-HK72AA MP-Series Servo Motor combines a compact 100 mm frame, low-inertia construction, 5000 rpm speed capability, 2000-line incremental encoder feedback, and a keyless shaft design. Its responsive characteristics make it well suited to high-cycle packaging, indexing, assembly, converting, and precision automation equipment where fast and repeatable motion is a priority.
Industrial Applications
The Allen-Bradley MPL-A320P-HK72AA is a low-inertia AC rotary servo motor from the MP-Series MPL family, designed for high-performance motion systems that require rapid acceleration, accurate feedback, and repeatable positioning. With a 100 mm frame and 50.8 mm magnet stack, it offers a compact motor package for machine builders working within demanding space and performance constraints.
This servo motor is well suited to packaging equipment, converting machinery, automated assembly systems, indexing machines, material-handling equipment, electronics manufacturing, printing machinery, and other applications where fast and controlled motion directly influences machine productivity.
The motor is designed for 5000 rpm operation and uses a 2000-line incremental encoder for closed-loop feedback. This combination makes it appropriate for motion axes that repeatedly change speed or position and require the servo controller to respond quickly to actual shaft movement.
The MPL-A320P-HK72AA uses a keyless shaft extension and a right-angle SpeedTEC DIN connector with 180-degree rotational flexibility. These features can simplify mechanical integration and cable routing in compact machine assemblies.
This model is configured without a brake, making it particularly appropriate for horizontal rotary axes and other applications where mechanical shaft holding is not required after the servo system is de-energized.
Performance Advantages for High-Speed Motion
The MPL-A320P-HK72AA is built around a low-inertia brushless servo design, allowing the motor to respond rapidly to changing speed and position commands. This is particularly useful in machines that perform repeated indexing, rapid positioning, or short acceleration and deceleration cycles.
Its 5000 rpm rated speed provides substantial operating headroom for high-throughput machinery. When the motor, drive, coupling, and load are properly matched, the higher speed capability can help reduce the time required to complete repetitive rotary movements.
The motor uses a 2000-line incremental encoder, providing the servo drive with detailed position feedback. Accurate feedback allows the controller to monitor actual motor movement and maintain the desired motion profile during operation.
A keyless shaft extension eliminates the need for a traditional shaft key and can work well with compatible keyless couplings. This is useful for machine builders who require a clean mechanical interface between the servo motor and driven mechanism.
The SpeedTEC DIN right-angle connector can be rotated through 180 degrees, giving designers more freedom when routing cables around the motor. In densely packed automation equipment, this can make installation and maintenance considerably easier.
The MPL-A320P-HK72AA is also a no-brake configuration. This keeps the motor focused on dynamic motion performance and makes it a sensible choice for applications where the driven mechanism does not need mechanical holding when power is removed.
Technical FAQs
1. What type of servo motor is the MPL-A320P-HK72AA?
The MPL-A320P-HK72AA is a low-inertia brushless AC rotary servo motor in the Allen-Bradley MP-Series MPL family. It is intended for closed-loop industrial motion-control applications.
2. What is the rated speed of this servo motor?
The motor has a rated speed of 5000 rpm. Actual machine speed should be determined by the servo drive configuration, mechanical load, duty cycle, and operating conditions.
3. What type of encoder is installed in the MPL-A320P-HK72AA?
This model uses a 2000-line incremental encoder. The encoder supplies position feedback to the servo control system, allowing the drive to regulate motor movement accurately.
4. Does the MPL-A320P-HK72AA include a holding brake?
No. This is a no-brake configuration. If the motor is required to hold a vertical load or prevent shaft movement after power removal, an appropriate brake-equipped motor or external mechanical holding solution should be considered.
5. What is the magnet stack length?
The motor uses a 50.8 mm (2.0 in.) magnet stack. This is part of the motor's internal electromagnetic configuration and contributes to its torque and performance characteristics.
6. What shaft arrangement does this model use?
The MPL-A320P-HK72AA uses a keyless shaft extension. A compatible coupling should be selected according to the motor shaft specifications, transmitted torque, alignment, and machine operating conditions.
7. Why is low inertia beneficial in servo applications?
A low-inertia rotor can accelerate and decelerate rapidly because less rotational energy needs to be changed during speed transitions. This makes the motor particularly useful for high-cycle machinery with frequent starts, stops, and positioning movements.
8. What is the purpose of the 2000-line encoder?
The encoder provides detailed incremental position feedback to the servo drive. This information allows the controller to compare commanded movement with actual motor movement and correct the axis accordingly.
9. How should the motor be paired with a servo drive?
The drive must be compatible with the motor's voltage class, feedback system, motor characteristics, and application requirements. Motor parameters should be correctly entered or selected in the drive before commissioning.
10. What can cause following errors during high-speed operation?
Possible causes include incorrect servo tuning, excessive load inertia, overly aggressive acceleration commands, mechanical backlash, coupling misalignment, encoder feedback problems, or unsuitable motion parameters. High-speed applications should be evaluated as a complete motor-drive-mechanical system.
