Overview
The Allen-Bradley MPL-B540K-MK22A servo motor is a high-performance member of the MP-Series Low Inertia (MPL) brushless motor family. This 165 mm frame servo combines compact design with high torque density, making it ideal for applications requiring rapid acceleration and precise positioning in industrial automation, material handling, and robotics. The unit is rated at 5.4 kW continuous output with 4000 RPM nominal speed and operates on 460V AC three-phase power.
Key Features
- Low-Inertia Design: Enables quick acceleration and reduced settling time for dynamic motion applications
- High Torque Density: Delivers stall torque up to 19.4 N-m for superior holding and load capability in compact footprint
- Absolute Encoder Feedback: Single-turn encoder integrated for reliable position feedback and commutation
- Circular Bayonet Connector: Standard M23 connector for secure, standardized motor interface
- Robust Thermal Management: Advanced winding insulation supports extended operation without overheating
Technical Specifications
- Manufacturer: Rockwell Automation / Allen-Bradley
- Part Number: MPL-B540K-MK22A
- Series: Kinetix MP-Series Low Inertia Rotary Servo
- Frame Size: 165 mm
- Rated Power: 5.4 kW (7.2 HP)
- Rated Speed: 4000 RPM
- Rated Voltage: 460V AC, 3-phase
- Continuous Current: 20.5 A
- Stall Torque: 19.4 N-m
- Rotor Inertia: 0.000147 kg·m²
- Feedback Type: Single-turn absolute encoder
- Connector Type: M23 circular bayonet (4-pin)
- Brake: Not factory-installed
- Shaft Key: Not included
- Mounting: Flange mount (165 mm frame)
Typical Applications
The MPL-B540K-MK22A servo motor excels in precision motion control applications including:
- CNC machine tool positioning and spindle drives
- Packaging and labeling machinery with high-speed indexing
- Industrial robotics and pick-and-place automation
- Textile machinery and web tension control
- Material handling conveyors with synchronized motion
- Assembly lines requiring coordinated multi-axis motion
Compatibility & Replacements
Compatible With
- Kinetix 2000 servo drive family
- Kinetix 6000 servo drive family
- Kinetix 7000 servo drive family
- Ultra 3000 servo drive family
- CompactLogix and ControlLogix controllers with motion modules
- EtherCAT and EtherNet/IP industrial networks
Replaces / Drop-In Replacement For
- MPL-B540K-MJ22AA (multiurn encoder variant)
- MPL-B540K-SK22AA (single-turn encoder, 400V alternate)
- MPL-B540K-SJ22AA (single-turn encoder variant)
- Other MPL-B540K variants with 5.4 kW / 4000 RPM specifications
Works With
- Rockwell Automation Studio 5000 motion software (RSLogix 5000 / Logix Designer)
- Allen-Bradley Connected Components Workbench
- EtherNet/IP ODVA-compliant devices
- PROFINET (with appropriate gateway/converter)
- Kinetix and Ultra drive firmware (series B and later)
