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Product Overview
The Allen-Bradley MPL-A220T-VJ74AA Servo Motor is a high-performance MP-Series Low-Inertia Brushless AC Rotary Servo Motor designed for precision industrial motion control applications. As a member of the Rockwell Automation MP-Series servo motor family, this model combines rapid dynamic response, excellent positioning accuracy, and dependable torque output for demanding automation systems. It features a 230 V AC voltage class, 75 mm IEC metric frame size, 50.8 mm magnet stack length, 6000 RPM rated speed, a multi-turn high-resolution absolute encoder, a keyed shaft, a SpeedTEC right-angle rotatable DIN connector, and an integrated 24 V DC holding brake, making it particularly suitable for vertical-axis and high-precision positioning applications.
The built-in multi-turn absolute encoder continuously retains position information, even after power interruptions. This eliminates the need for repeated homing procedures during machine startup, helping reduce downtime and improve production efficiency. The integrated 24 V DC holding brake securely locks the motor shaft whenever power is removed, preventing unintended movement and improving equipment safety.
Designed for seamless integration with Allen-Bradley Kinetix servo drives, the MPL-A220T-VJ74AA is widely used in packaging machinery, robotics, CNC equipment, semiconductor manufacturing, electronic assembly systems, pharmaceutical production, printing equipment, and automated material handling applications.
With a compact 75 mm frame size and an approximate weight of 2 kg, the servo motor provides excellent power density while minimizing installation space.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen-Bradley |
| Model | MPL-A220T-VJ74AA |
| Product Series | MP-Series MPL |
| Product Type | Rotary Servo Motor |
| Motor Type | Low-Inertia Brushless AC Servo Motor |
| Rated Voltage | 230 V AC |
| Rated Speed | 6000 RPM |
| Frame Size | 75 mm |
| Magnet Stack Length | 50.8 mm |
| Feedback Device | Multi-Turn High-Resolution Absolute Encoder |
| Shaft Type | Keyed Shaft |
| Brake | Integrated 24 V DC Holding Brake |
| Connector Type | SpeedTEC Right-Angle DIN Connector (180° Rotatable) |
| Mounting | IEC Metric Flange |
| Frame Size | 75 mm |
| Weight | Approximately 2 kg |
Function and Working Principle
The Allen-Bradley MPL-A220T-VJ74AA converts electrical energy supplied by a compatible servo drive into precise rotary motion while continuously transmitting absolute position feedback to the controller.
Typical Motion Control Architecture
Motion Controller
↓
Allen-Bradley Kinetix Servo Drive
↓
MPL-A220T-VJ74AA Servo Motor
↓
Mechanical Transmission
↓
Industrial Equipment
During operation, the servo motor performs the following functions:
- Executes precise positioning commands
- Delivers accurate speed regulation
- Produces stable output torque
- Provides multi-turn absolute encoder feedback
- Eliminates homing after power restoration
- Supports rapid acceleration and deceleration
- Activates the holding brake when power is removed
- Improves machine productivity
The combination of a low-inertia rotor, multi-turn absolute encoder, and integrated holding brake makes the motor ideal for applications requiring both high positioning accuracy and safe load retention.
Role in Industrial Motion Control Systems
Within industrial automation systems, the MPL-A220T-VJ74AA functions as the primary motion actuator responsible for executing highly accurate motion commands.
Its primary responsibilities include:
- Position control
- Speed regulation
- Continuous torque output
- Absolute encoder feedback
- Multi-axis synchronization
- Vertical load holding
- High-repeatability positioning
- Increased production efficiency
The integrated brake enhances operational safety while the absolute encoder improves machine availability by eliminating reference homing.
Industrial Applications
Packaging Machinery
Common applications include:
- Filling machines
- Cartoning systems
- Labeling equipment
- Wrapping machinery
- High-speed conveyors
Robotics
Suitable for:
- Six-axis robots
- Pick-and-place systems
- Assembly robots
- Collaborative robots
- Material handling robots
CNC Machinery
Widely used in:
- CNC machining centers
- Milling machines
- Precision cutting equipment
- Automated machining cells
- Multi-axis positioning systems
Semiconductor and Electronics Manufacturing
Applications include:
- PCB assembly
- Semiconductor processing
- Precision positioning equipment
- Inspection systems
- Wafer handling machinery
Printing and Converting
Ideal for:
- Digital printing presses
- Label production
- Web handling systems
- Roll-to-roll processing
- Paper converting machinery
Pharmaceutical and Food Processing
Suitable for:
- Filling systems
- Packaging machinery
- Conveyor automation
- Inspection equipment
- Automated production lines
Installation and System Integration
Before installation, engineers should verify:
- Servo drive compatibility
- Motor voltage requirements
- Encoder cable condition
- Brake wiring
- Mechanical alignment
- Shaft coupling installation
- Grounding requirements
- 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 supply.
- Configure the Kinetix servo drive.
- Perform motor identification.
- Tune servo parameters.
- Verify brake operation.
- Test motor rotation.
- Complete commissioning.
Compatible System Components
| Component | Function |
|---|---|
| Allen-Bradley Kinetix Servo Drive | Servo control |
| Logix PLC | Machine control |
| Motion Controller | Motion command generation |
| Servo Power Cable | Power transmission |
| Absolute Encoder Cable | Position feedback |
| 24 V DC Brake Supply | Brake operation |
| Mechanical Coupling | Torque transmission |
| Planetary Gearbox | Speed reduction |
| HMI Panel | Operator interface |
| EtherNet/IP Network | Industrial communication |
Recommended Alternative Models
| Model | Product Type | Recommended Application |
|---|---|---|
| MPL-A220T-VJ74AA | Servo Motor with Absolute Encoder & Brake | Vertical precision motion |
| MPL-A220T-VJ72AA | Servo Motor without Brake | Horizontal-axis applications |
| MPL-A220T-EJ74AA | Servo Motor with Single-Turn Encoder & Brake | Standard positioning |
| MPL-A220T-HJ74AA | Servo Motor with Incremental Encoder & Brake | High-speed motion control |
| Kinetix VP Servo Motors | Advanced Servo Motor | Premium automation systems |
Key Advantages
- MP-Series low-inertia brushless AC servo motor
- 230 V AC operation
- Multi-turn high-resolution absolute encoder
- Integrated 24 V DC holding brake
- Compact 75 mm frame size
- 6000 RPM rated speed
- No homing required after power restoration
- SpeedTEC quick-connect interface
- Excellent positioning accuracy
- Compatible with Allen-Bradley Kinetix servo drives
- Approximate weight of 2 kg
Technical FAQs
What is the Allen-Bradley MPL-A220T-VJ74AA?
The MPL-A220T-VJ74AA 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 its rated voltage?
The motor operates on 230 V AC, while the holding brake uses 24 V DC.
What is the rated speed?
The rated operating speed is 6000 RPM.
What type of encoder does this motor use?
It uses a multi-turn high-resolution absolute encoder, allowing position information to be retained after power interruptions.
Does the motor include a holding brake?
Yes. The MPL-A220T-VJ74AA includes an integrated 24 V DC electromagnetic holding brake for secure load holding.
What is the frame size?
The motor has a 75 mm IEC metric frame size.
Which servo drives are compatible?
It is designed for use with Allen-Bradley Kinetix servo drive systems.
What is the approximate weight?
The servo motor weighs approximately 2 kg.
Which industries commonly use this servo motor?
It is widely used in packaging, robotics, CNC machining, semiconductor manufacturing, electronics assembly, pharmaceutical production, printing, and automated manufacturing.
What are the advantages of the multi-turn absolute encoder and holding brake?
The multi-turn absolute encoder eliminates repeated homing procedures, while the integrated holding brake securely maintains shaft position during power loss, improving productivity, positioning accuracy, and operational safety.
Conclusion
The Allen-Bradley MPL-A220T-VJ74AA Servo Motor is a high-performance MP-Series low-inertia brushless AC servo motor designed for advanced industrial motion control. Featuring 230 V AC operation, a 75 mm frame size, 6000 RPM rated speed, a multi-turn high-resolution absolute encoder, and an integrated 24 V DC holding brake, it delivers outstanding positioning precision, dynamic performance, and secure load-holding capability.
With its compact construction and approximate weight of 2 kg, the MPL-A220T-VJ74AA is an ideal solution for machine builders and automation engineers seeking reliable, high-precision servo motion in modern industrial automation systems.