Product Description
The Allen-Bradley PowerFlex 700S AC drive, part number 20DD500ACENNBNCNL, is a 480V, 500A three-phase unit designed for demanding industrial applications. Housed in an IP20/NEMA Type 1 enclosure for indoor use, it features a door-mounted numeric LCD, a quick start guide, adjustable bus undervoltage trip for safety, microprocessor-monitored heat sink thermistor for overheating prevention, and ride-thru capabilities (0.25 seconds logic control, 15 milliseconds power ride-thru at full load), but lacks an integrated braking system.
Is Your Device Showing These Signs?
The Allen Bradley 20DD500ACENNBNCNL commonly experiences failures related to IGBT module degradation, resulting in overcurrent faults and drive trips. Capacitor bank failures within the DC bus are a frequent cause of voltage instability and require replacement. Encoder feedback issues, stemming from damaged encoder cables or faulty encoder modules, disrupt accurate motor control. Communication errors on the EtherNet/IP network, often due to firmware corruption or network configuration problems, prevent proper integration with the control system. Overheating, attributed to inadequate cooling fan operation or blocked heatsinks, leads to thermal shutdowns and component stress.
Technical specifications
The Allen-Bradley PowerFlex 700S AC drive (20DD500ACENNBNCNL) is a robust 480V, 500A three-phase drive for industrial use. It's an IP20/NEMA Type 1 enclosed unit with a numeric LCD, quick start guide, adjustable undervoltage trip, heat sink thermistor, and ride-thru capabilities, but it does not have an integrated braking system.
Our Repair Process for the
20DD500ACENNBNCNL
Our repair process for the Allen Bradley 20DD500ACENNBNCNL begins with a comprehensive diagnostic evaluation to pinpoint the root cause of the failure, focusing on IGBT module integrity, DC bus capacitor health, encoder feedback accuracy, EtherNet/IP communication functionality, and thermal management effectiveness. Failed IGBT modules are replaced with new, high-quality components, and the DC bus capacitor bank is entirely replaced to ensure voltage stability. Encoder cables are inspected and replaced if damaged, and faulty encoder modules undergo repair or replacement. Firmware is updated or reimaged to resolve communication errors, and network configurations are verified for proper integration. Cooling fans are inspected and replaced as needed, and heatsinks are thoroughly cleaned to eliminate overheating issues. Following component replacement and repair, the drive undergoes rigorous testing under load to verify operational performance and reliability before it 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.
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