Product Description
The Allen Bradley 20BD077A0NYNARN0 PowerFlex 700 AC drive is a compact, digital AC drive with a 480V AC voltage class, 77A current, and 60HP rating. It features an internal EMC line filter, dynamic brake transistor, 97.5% PWM efficiency, and 2:1 drive-to-motor power ratio. It offers up to 200kA short-circuit rating, bus voltage regulation, MOV-protected circuitry, volt per hertz motor control with 0.5% speed regulation (without encoder), Remote I/O communication, a 0-50C operating temperature range, and a NEMA/UL Type 1 enclosure. It weighs 24.5 kg and is CE, ABS, c-UL-us, KCC, and RCM certified.
Is Your Device Showing These Signs?
The Allen Bradley 20BD077A0NYNARN0 PowerFlex 755 AC drive commonly experiences issues related to IGBT failures, often indicated by fault codes stemming from overcurrent or ground faults. Capacitor degradation within the DC bus is a frequent problem, leading to voltage fluctuations and drive instability. Encoder feedback problems, manifesting as speed regulation errors or positioning inaccuracies, require attention. Communication faults on the Ethernet/IP network, hindering PLC integration and remote monitoring, demand troubleshooting. Cooling fan malfunctions cause overheating and premature component wear, necessitating replacement to maintain thermal management.
Technical specifications
The Allen Bradley 20BD077A0NYNARN0 PowerFlex 700 AC drive is a compact 480V, 60HP drive with 77A current. It includes an EMC filter, dynamic brake, and boasts 97.5% PWM efficiency. Key features include a 2:1 power ratio, high short-circuit rating, bus voltage regulation, MOV protection, volt per hertz control, Remote I/O communication, a 0-50C operating range, and a NEMA/UL Type 1 enclosure. It weighs 24.5 kg and is multiple-agency certified.
Our Repair Process for the
20BD077A0NYNARN0
Our repair process for the Allen Bradley 20BD077A0NYNARN0 PowerFlex 755 AC drive begins with a comprehensive diagnostic evaluation to pinpoint the root cause of the reported issue, focusing on common failure points such as IGBTs, DC bus capacitors, encoder feedback systems, Ethernet/IP communication, and cooling fans. Upon identifying the fault, we proceed with component-level repairs or replacements using only high-quality, tested parts that meet or exceed original manufacturer specifications. The repaired drive undergoes rigorous testing under load conditions to verify operational integrity and adherence to performance standards. Finally, the unit is cleaned, prepared for shipment, and returned with a detailed repair report outlining the work performed and any recommendations for preventative maintenance.
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.

















