Product Description
The Allen-Bradley 20AC072A0AYNAEN0 is a PowerFlex 70 series adjustable frequency drive (E frame) designed for cabinet mounting due to its open enclosure, which facilitates heat dissipation and allows operation up to 50C. Weighing approximately 18.6 kg, it operates at 400VAC, delivering 72 Amps and 50 Horsepower in 3-phase applications (50% of these values for single-phase). It features Ethernet/IP communication for easy programming and monitoring, requires 3 ferrite cores on the I/O cable, and is suitable for circuits up to 200,000 symmetrical Amps and 600 Volts. Programming is simplified with multiple language options and LCD/LED display compatibility, using a question-based start-up process.
Is Your Device Showing These Signs?
The Allen Bradley 20AC072A0AYNAEN0 PowerFlex 753 AC drive commonly experiences issues such as IGBT failures, capacitor degradation leading to DC bus undervoltage faults, and encoder feedback problems causing erratic motor control. Communication faults on the Ethernet/IP network are frequent, stemming from corrupted firmware or faulty network interface cards. Overcurrent trips are observed due to improper motor tuning or insulation breakdown in the motor windings. Resolving these issues involves replacing faulty components, updating firmware, and performing thorough motor and drive parameter adjustments.
Technical specifications
The Allen-Bradley 20AC072A0AYNAEN0 is a PowerFlex 70 adjustable frequency drive (E frame) for cabinet mounting. It's designed for 400VAC, delivering 72 Amps/50 HP in 3-phase (half in single-phase), and features Ethernet/IP communication. It requires ferrite cores on the I/O cable and is suitable for circuits up to 200kA/600V. Programming is user-friendly with multiple languages and LCD/LED display compatibility.
Our Repair Process for the
20AC072A0AYNAEN0
Our repair process for the Allen Bradley 20AC072A0AYNAEN0 PowerFlex 753 AC drive begins with a comprehensive diagnostic evaluation to pinpoint the root cause of the failure, addressing common issues such as IGBT failures, capacitor degradation, encoder feedback problems, communication faults, and overcurrent trips. This evaluation includes component-level testing, firmware analysis, and motor insulation checks. Upon identifying the fault, we proceed with replacing defective components, which may include IGBTs, capacitors, encoders, or network interface cards. Firmware updates are performed to rectify communication faults and ensure optimal drive performance. Following hardware repairs and software updates, we conduct thorough motor and drive parameter adjustments to prevent overcurrent trips and ensure proper motor control. The repaired drive undergoes rigorous testing under load conditions to verify functionality 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.

















