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Product Description
The Allen-Bradley 20G11ND077AA0NNNNN, a PowerFlex 755 AC drive, simplifies development, use, and maintenance through premier integration. It offers exceptional integration with controllers, streamlining installation and minimizing programming. Features include user-friendly tools for reduced development time, advanced graphical interfaces for parameter configuration, and easy maintenance with predictive diagnostics. DeviceLogix control technology reduces network dependency, enabling scaling and data manipulation. It operates between 0 and 50 degrees Celsius, stores between -40 and 70 degrees Celsius with 5-95% non-condensing humidity, and supports advanced speed/torque control and integrated motion over Ethernet I/P for safety-critical applications. This 60 HP (normal duty) / 50 HP (heavy duty) drive, with output currents of 77A/65A respectively, is designed for IP20/IP00 or equivalent enclosures with adequate ventilation. Allen-Bradley recommends specific IEC or UL fuses for incoming power. Premier integration allows direct access to drive parameters via CompactLogix or ControlLogix controllers, enabling remote and automated operation through HMI/SCADA systems.
Is Your Device Showing These Signs?
The Allen Bradley 20G11ND077AA0NNNNN PowerFlex 755 AC drive commonly experiences issues such as IGBT failures, DC bus capacitor degradation leading to over-voltage faults, and cooling fan malfunctions causing thermal overload trips. Communication errors on EtherNet/IP or other network interfaces are addressed through firmware upgrades or parameter adjustments. Current sensor drift affects motor control accuracy, requiring calibration or replacement. Ground faults and short circuits in the motor wiring or drive output necessitate thorough insulation testing and component replacement. Parameter corruption within the drive's memory is resolved by restoring the original configuration or performing a factory reset.
Technical specifications
The Allen-Bradley 20G11ND077AA0NNNNN PowerFlex 755 AC drive offers simplified development, use, and maintenance through premier integration with controllers. It features user-friendly tools, advanced graphical interfaces, predictive diagnostics, and DeviceLogix control technology for reduced network dependency. It supports advanced speed/torque control and integrated motion over Ethernet I/P, operates within a specific temperature and humidity range, and is designed for IP20/IP00 enclosures with proper ventilation. The drive is rated at 60 HP (normal duty) / 50 HP (heavy duty) with corresponding output currents, and Allen-Bradley recommends specific fuses for incoming power. Premier integration allows direct access to drive parameters via controllers for remote and automated operation.
Our Repair Process for the
20G11ND077AA0NNNNN
Our repair process for the Allen Bradley 20G11ND077AA0NNNNN PowerFlex 755 AC drive begins with a comprehensive diagnostic evaluation to pinpoint the failure. Suspected IGBT failures are confirmed through testing, and faulty units are replaced with new components. DC bus capacitors are assessed for degradation; replacement occurs if capacitance values fall outside specified tolerances. Cooling fan malfunctions are addressed by replacing the faulty fan unit. Communication errors are resolved through firmware upgrades or parameter adjustments. Current sensor drift is corrected via calibration or sensor replacement. Ground faults and short circuits are investigated through insulation testing, and damaged wiring or components are replaced. Parameter corruption is rectified by restoring the original configuration or performing a factory reset.
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