Product Description
The Allen-Bradley PowerFlex 755 series 20G11LF590JN2NNNNN drive, designed for diverse industrial uses, handles AC voltages up to 690V and DC voltages up to 932V, includes DC terminals and precharge, and features IP20/NEMA/UL Type 1 protection in its 800mm deep, RAL 7032 colored enclosure; it also has filtering and a common mode capacitor jumper, but lacks internal transistors and resistors, and is not UL listed.
Is Your Device Showing These Signs?
The Allen Bradley 20G11LF590JN2NNNNN PowerFlex 755 AC drive commonly experiences issues such as IGBT failures, DC bus capacitor degradation leading to over-voltage faults, and control board corruption causing communication errors on EtherNet/IP networks. Resolving these problems involves replacing faulty power components, reforming or swapping DC bus capacitors to maintain voltage stability, and reprogramming or replacing the control board to restore network connectivity and proper drive operation. Firmware upgrades are essential to address software bugs and improve performance, while proper heat sink maintenance prevents thermal overload faults. Parameter configuration errors also contribute to operational problems, necessitating a thorough review and correction of drive settings.
Technical specifications
The Allen-Bradley PowerFlex 755 20G11LF590JN2NNNNN drive is an industrial AC/DC drive (up to 690V AC/932V DC) with DC terminals, precharge, IP20/NEMA/UL Type 1 protection in an 800mm deep, RAL 7032 enclosure. It includes filtering and a common mode capacitor jumper but lacks internal transistors/resistors and UL listing.
Our Repair Process for the
20G11LF590JN2NNNNN
Our repair process for the Allen Bradley 20G11LF590JN2NNNNN PowerFlex 755 AC drive begins with a comprehensive diagnostic evaluation to pinpoint the root cause of the malfunction, whether it stems from IGBT failures, DC bus capacitor degradation, control board corruption, or parameter configuration errors. Repair actions include replacing defective power components, reforming or replacing DC bus capacitors to ensure voltage stability, and reprogramming or replacing the control board to restore network connectivity and proper drive operation. Firmware upgrades are performed to address software bugs and enhance performance, and heat sink maintenance is conducted to prevent thermal overload faults. A meticulous review and correction of drive parameters is undertaken to ensure optimal operation and prevent future issues.
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