Product Description
The Allen-Bradley PowerFlex 70 drive, model 20AD027A0AYYARC0, is a 480VAC adjustable frequency drive with a 27A current rating and a 15kW/20HP output at 60Hz. Designed for panel mounting with an IP20/NEMA Type 1 enclosure (which can become Open Type if the chassis label is removed), it features a blank cover for user-installed interfaces, an English manual, internal and IGBT brake options, RIO communication, and enhanced control without safe-off or feedback. It operates between 0-50C (32-122F) and is suitable for circuits up to 200,000 RMS symmetrical Amps at 600V, requiring Type B devices for ground fault monitoring to prevent nuisance tripping. This drive weighs approximately 9.25 kg (20.4 lbs).
Is Your Device Showing These Signs?
The Allen Bradley 20AD027A0AYYARC0 AC drive commonly experiences issues such as overcurrent faults stemming from excessive motor load or shorted IGBTs, requiring IGBT replacement and motor inspection. Communication failures on the EtherNet/IP network are traced to faulty RJ45 connectors, incorrect IP address configurations, or damaged communication boards, necessitating cable replacement, network reconfiguration, or board replacement. Parameter corruption within the drive's memory leads to erratic motor behavior, resolved by restoring the drive to factory settings and reprogramming parameters. Overvoltage faults arise from regenerative energy during deceleration, addressed by installing braking resistors or adjusting deceleration rates. Finally, overheating issues are attributed to clogged heatsinks, failed cooling fans, or high ambient temperatures, requiring cleaning, fan replacement, or improved ventilation.
Technical specifications
The Allen-Bradley PowerFlex 70 drive (20AD027A0AYYARC0) is a 480VAC, 27A adjustable frequency drive outputting 15kW/20HP at 60Hz. It's designed for panel mounting with an IP20/NEMA Type 1 enclosure (convertible to Open Type), features a blank cover for custom interfaces, an English manual, internal/IGBT brake options, RIO communication, and enhanced control without safe-off or feedback. It operates between 0-50C and requires Type B devices for ground fault monitoring in circuits up to 200,000 RMS symmetrical Amps at 600V. It weighs 9.25 kg.
Our Repair Process for the
20AD027A0AYYARC0
Our repair process for the Allen Bradley 20AD027A0AYYARC0 AC drive begins with a comprehensive diagnostic evaluation to pinpoint the fault. Overcurrent faults necessitate immediate IGBT replacement and thorough motor inspection to identify and rectify any excessive load or shorts. Communication failures on the EtherNet/IP network require a systematic approach, starting with RJ45 connector and cable replacement, followed by verification and correction of IP address configurations, and culminating in communication board replacement if necessary. Parameter corruption is resolved by restoring the drive to factory settings and meticulously reprogramming all parameters according to the application requirements. Overvoltage faults are addressed by installing appropriately sized braking resistors or carefully adjusting deceleration rates to manage regenerative energy. Overheating issues demand a multi-faceted solution, including meticulous cleaning of heatsinks, replacement of failed cooling fans, and implementation of improved ventilation strategies to ensure optimal operating temperatures.
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.

















