Product Description
The Allen-Bradley 20DD460N3ENNBRNBN is a 480V, three-phase adjustable frequency AC drive designed for demanding industrial motor control, handling 460 amps input current. It features an open IP00 enclosure, a user-friendly numeric LCD, and a quick start guide. While lacking an integral braking system, it offers adjustable bus undervoltage trip protection, heat sink thermistor-monitored thermal management, and ride-thru capabilities (0.25 seconds when not running, 15 milliseconds at full load) to ensure reliable operation during power fluctuations.
Is Your Device Showing These Signs?
The Allen Bradley 20DD460N3ENNBRNBN Servo Drive commonly experiences issues related to IGBT failures, often indicated by fault codes that halt motor operation. Resolve communication errors by verifying Ethernet/IP connectivity and addressing configuration mismatches within the PLC. Overcurrent faults are frequently traced to motor winding shorts or excessive load demands, necessitating motor testing and load analysis. Address erratic or unresponsive behavior by recalibrating feedback devices, such as encoders, and updating firmware to the latest revision to mitigate software bugs and improve performance. Power supply problems, including blown fuses or capacitor degradation, require immediate attention to prevent catastrophic drive failure.
Technical specifications
The Allen-Bradley 20DD460N3ENNBRNBN is a 480V, three-phase AC drive for industrial motor control. It handles 460 amps input, has an open IP00 enclosure, a numeric LCD, and a quick start guide. It lacks a braking system but includes undervoltage trip protection, heat sink thermistor monitoring, and ride-thru capabilities for power fluctuation resilience.
Our Repair Process for the
20DD460N3ENNBRNBN
Our repair process for the Allen Bradley 20DD460N3ENNBRNBN Servo Drive begins with a comprehensive diagnostic assessment to pinpoint the root cause of failure, focusing on common issues such as IGBT failures, communication errors, overcurrent faults, erratic behavior, and power supply problems. IGBT failures are addressed by replacing the faulty components and thoroughly testing the drive under load. Communication errors are resolved by verifying Ethernet/IP connectivity and correcting any PLC configuration mismatches. Overcurrent faults necessitate motor testing for winding shorts and load analysis to identify and rectify excessive demands. Erratic behavior is corrected through feedback device recalibration and firmware updates to the latest revision. Power supply issues, including blown fuses or capacitor degradation, are immediately rectified to prevent further damage.
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.
Buying Options
To receive a quote within 2 hours, please provide us with the details of your requirements. Our team will promptly review your request and send you a custom offer.
Ships from Rochester, NY