Product Description
The Allen-Bradley 20BD040A0AYNADN0 PowerFlex 700 AC drive is a compact, 30 HP, 480 VAC PWM drive designed for precise torque and speed control with standard V/Hz motor control and no I/O control option. It features DeviceNet communication, internal dynamic brake transistor and EMC filter, a NEMA Type 1 enclosure, and operates up to 50C. It offers bus voltage regulation, current limiting, transient and ground fault protection via MOVs, flying start, inertia ride-through (up to 15ms), slip compensation for 0.5% open-loop speed regulation (40:1 range), and variable switching frequency PWM for accurate control. It supports branch circuit protection up to 200,000 Amps and meets CE, KCC, c-UL-us, RCM, and ABS standards. The drive weighs 18.6 kg.
Is Your Device Showing These Signs?
The Allen Bradley 20BD040A0AYNADN0 PowerFlex 755 AC drive commonly experiences failures related to the gate driver board, resulting in overcurrent faults and IGBT failures. Capacitor degradation within the DC bus section causes DC bus undervoltage or overvoltage faults, requiring capacitor replacement. The cooling fan malfunctions lead to overheating and thermal trips, necessitating fan replacement to maintain proper heat dissipation. Communication errors on the Ethernet/IP network stem from a faulty communication module, demanding module repair or replacement. Current sensor drift induces inaccurate current readings, triggering nuisance faults and impacting motor control performance, necessitating sensor recalibration or replacement.
Technical specifications
The Allen-Bradley 20BD040A0AYNADN0 PowerFlex 700 is a compact 30 HP, 480 VAC AC drive for precise torque and speed control. It features V/Hz control, DeviceNet communication, internal braking and EMC filter, a NEMA 1 enclosure, and operates up to 50C. It includes various protection features, flying start, inertia ride-through, slip compensation, and variable switching frequency PWM. It's certified to multiple international standards and weighs 18.6 kg.
Our Repair Process for the
20BD040A0AYNADN0
Our repair process for the Allen Bradley 20BD040A0AYNADN0 PowerFlex 755 AC drive begins with a comprehensive diagnostic evaluation to pinpoint the failure. Gate driver board issues, indicated by overcurrent faults and IGBT failures, are addressed through component-level repair or board replacement. DC bus capacitor degradation, identified by DC bus undervoltage or overvoltage faults, requires complete capacitor bank replacement. Cooling fan malfunctions, causing overheating and thermal trips, are resolved with immediate fan replacement. Communication errors on the Ethernet/IP network, stemming from a faulty communication module, necessitate module repair or replacement. Current sensor drift, resulting in inaccurate current readings and nuisance faults, is corrected through sensor recalibration or replacement, ensuring accurate motor control.
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.

















