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Product Description
The Allen-Bradley/Rockwell Automation 20G14ND361JN0NNNNN, a frame 1 PowerFlex 755 series 3-phase variable drive, controls the speed, torque, acceleration, and deceleration of variable speed motors in control systems. It provides soft start/stop functionality to protect the motor from stress and extend its lifespan. This drive, with a 50-60 Hz frequency range and 480 VAC/650 VDC voltage ratings, is designed for compatible motors with a 361 Amp normal duty rating. Due to its sensitivity to high temperatures and electrostatic discharge, careful installation is crucial. Optimal performance is achieved by locating the drive close to the motor, minimizing cable length to reduce power loss.
Is Your Device Showing These Signs?
The Allen Bradley 20G14ND361JN0NNNNN 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 nuisance tripping requires thorough inspection of motor insulation resistance and drive parameters. Correcting erratic motor speed or torque control involves recalibrating the drive's autotune function and verifying proper encoder feedback. Repairing these drives often includes replacing damaged power components, updating firmware to address known bugs, and restoring configuration parameters to factory settings or user-defined profiles.
Technical specifications
The Allen-Bradley 20G14ND361JN0NNNNN PowerFlex 755 variable drive controls motor speed, torque, acceleration, and deceleration. It offers soft start/stop, operates at 50-60 Hz with 480 VAC/650 VDC, and is rated for 361 Amp motors. Proper installation is vital due to its sensitivity to temperature and electrostatic discharge, and performance is maximized by minimizing cable length.
Our Repair Process for the
20G14ND361JN0NNNNN
Our repair process for the Allen Bradley 20G14ND361JN0NNNNN PowerFlex 755 AC drive begins with a comprehensive diagnostic evaluation to pinpoint the root cause of the reported issue, whether it be IGBT failures, DC bus capacitor degradation, control board corruption, nuisance tripping, or erratic motor control. This evaluation includes a thorough inspection of motor insulation resistance, drive parameters, and encoder feedback. The repair proceeds with replacing damaged power components, updating firmware to address known bugs, and recalibrating the drive's autotune function. Finally, configuration parameters are restored to factory settings or user-defined profiles, ensuring optimal performance and reliability upon return.
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
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Ships from Rochester, NY