Product Description
The Allen-Bradley MPL-B420P-MJ72AA is a low-inertia, 400V servo motor with a multi-turn encoder and Smart Motor Technology for simplified commissioning. It features a Frame 4 design, a 50.8 mm magnet stack, a 5000 rpm rated speed, and a rotatable right-angle Circular (SpeedTec) DIN connector. It delivers a peak stall torque of 13.5 Nm and a continuous stall torque of 4.74 Nm, with corresponding current ratings of 22.0 Amps and 6.4 Amps, respectively. The motor outputs 1.9 kW, has a rotor inertia of 0.00026 kg-m2, and requires a shaft seal (MPL-SSN-A4B4) for protection. It includes a keyed shaft extension, IEC metric dimensions, SpeedTEC DIN connector, 24 VDC brakes, and FF mounting holes. Compatible with Allen Bradley Kinetix drives, this motor offers high torque, improved thermal performance, and flexible connector orientation, operating between 0 and 40 degrees Celsius and meeting CSA and UL standards, and can be used with Kinetix safe-off features.
Is Your Device Showing These Signs?
The Allen Bradley MPL-B420P-MJ72AA servo motor commonly experiences issues related to resolver feedback malfunction, leading to inaccurate positioning and velocity control. Bearing failure is a frequent problem, causing excessive noise and vibration, ultimately impacting motor performance and lifespan. Overheating due to excessive load or inadequate cooling is a common fault, potentially damaging the motor windings and insulation. Damaged connectors or wiring can interrupt power and signal transmission, resulting in intermittent operation or complete failure. Finally, encoder errors are observed, causing incorrect position data and hindering precise motion control applications.
Technical specifications
The Allen-Bradley MPL-B420P-MJ72AA is a 400V low-inertia servo motor with multi-turn encoder and Smart Motor Technology. It features a Frame 4 design, 5000 rpm speed, rotatable SpeedTec DIN connector, 13.5 Nm peak torque, 4.74 Nm continuous torque, and 1.9 kW output. It includes a keyed shaft, IEC metric dimensions, 24 VDC brakes, FF mounting holes, and is compatible with Allen Bradley Kinetix drives, offering high torque, improved thermal performance, and flexible connector orientation while meeting CSA and UL standards.
Our Repair Process for the
MPL-B420P-MJ72AA
Our repair process for the Allen Bradley MPL-B420P-MJ72AA servo motor begins with a comprehensive diagnostic evaluation to pinpoint the exact failure. Resolver feedback is meticulously tested and recalibrated or replaced to ensure accurate positioning. Bearings are inspected, and replacement occurs with high-quality components to eliminate noise and vibration. Overheating issues are addressed through thorough cleaning, cooling system inspection, and load analysis to prevent future damage. Damaged connectors and wiring are repaired or replaced to guarantee uninterrupted power and signal transmission. Encoder functionality is verified, and faulty encoders are replaced to restore precise motion control. Each repair concludes with rigorous testing under simulated operating conditions to validate performance and reliability before the motor is returned.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.
Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.