Product Description
The Allen-Bradley PowerFlex 700S 20DJ300N5NNNBCNNN is a 650V DC, 300-amp adjustable frequency drive for demanding motor control applications, featuring an open IP00 enclosure, a programmer-only LCD display, undervoltage trip protection, heat sink thermistor monitoring, and brief ride-thru capabilities (0.25 seconds logic control, 15 milliseconds full load), but lacks a braking feature.
Is Your Device Showing These Signs?
The Allen Bradley 20DJ300N5NNNBCNNN AC drive commonly experiences issues related to IGBT failures, often indicated by fault codes. Resolving this involves replacing the damaged IGBT module and thoroughly testing gate drive circuitry. Capacitor bank degradation is another frequent problem, leading to DC bus voltage instability and requiring capacitor replacement. Communication errors on the EtherNet/IP network are addressed by verifying network configurations, updating firmware, and inspecting cabling for connectivity issues. Parameter corruption within the drive's memory necessitates a factory reset and subsequent reprogramming with the correct application parameters. Overcurrent faults are resolved by inspecting the motor, load, and drive output for shorts or excessive current draw, potentially requiring motor insulation testing or drive recalibration.
Technical specifications
The Allen-Bradley PowerFlex 700S 20DJ300N5NNNBCNNN is a 650V DC, 300A adjustable frequency drive designed for demanding motor control. It has an open IP00 enclosure, a programmer-only LCD, undervoltage protection, heat sink monitoring, and short ride-thru capabilities, but no braking feature.
Our Repair Process for the
20DJ300N5NNNBCNNN
Our repair process for the Allen Bradley 20DJ300N5NNNBCNNN AC drive begins with diagnosing IGBT failures, indicated by fault codes, which requires immediate replacement of the damaged IGBT module and rigorous testing of the gate drive circuitry. Capacitor bank degradation, identified by DC bus voltage instability, necessitates capacitor replacement. Communication errors on the EtherNet/IP network are resolved through verification of network configurations, firmware updates, and thorough inspection of cabling for connectivity issues. Parameter corruption requires a mandatory factory reset followed by reprogramming with the correct application parameters. Overcurrent faults are addressed by inspecting the motor, load, and drive output for shorts or excessive current draw, potentially leading to motor insulation testing or drive recalibration.
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