Product Description
The Allen-Bradley 20DD385N3ENNBNNNN is a 480V AC, 385-amp adjustable frequency AC drive for three-phase applications, featuring a conformal-coated IP00 open enclosure, a full numeric LCD HMI, adjustable bus undervoltage trip, microprocessor-controlled thermistor overtemperature protection, 0.25-second logic control ride-thru, and 15-millisecond power ride-thru at full load, designed for reliable performance in industrial automation despite lacking braking capabilities and suitability for harsh environments.
Is Your Device Showing These Signs?
The Allen Bradley 20DD385N3ENNBNNNN Servo Drive commonly experiences issues related to failed electrolytic capacitors on the DC bus, resulting in over-voltage faults and drive trips. IGBT failures within the power stage are a frequent cause of malfunction, leading to short circuits and subsequent drive inoperability. Communication errors on the EtherNet/IP network, stemming from corrupted firmware or damaged communication ports, prevent proper control and monitoring. Encoder feedback problems, due to faulty encoder cables or resolver issues, cause inaccurate positioning and velocity control, necessitating repair or replacement. Overcurrent faults, often triggered by motor winding shorts or excessive load, demand immediate attention to prevent further damage to the drive and connected motor.
Technical specifications
The Allen-Bradley 20DD385N3ENNBNNNN is a 480V, 385A AC drive for three-phase industrial applications. It has an open IP00 enclosure, a full numeric LCD HMI, adjustable undervoltage trip, thermistor overtemperature protection, and short ride-thru capabilities. It's designed for reliable performance but lacks braking and isn't suitable for harsh environments.
Our Repair Process for the
20DD385N3ENNBNNNN
Our repair process for the Allen Bradley 20DD385N3ENNBNNNN Servo Drive begins with a comprehensive evaluation to verify the reported fault and identify any underlying issues. We meticulously inspect the DC bus electrolytic capacitors, replacing any that exhibit signs of degradation or failure to prevent over-voltage faults. The IGBTs within the power stage are thoroughly tested, and replacements are installed if short circuits or malfunctions are detected. Firmware is updated or re-flashed to resolve communication errors on the EtherNet/IP network, and damaged communication ports are repaired or replaced. Encoder feedback is verified, and faulty encoder cables are replaced or resolver issues are addressed to ensure accurate positioning. Overcurrent faults are investigated by testing the motor windings and load, and any shorts or excessive loads are 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