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Product Description
The Allen-Bradley/Rockwell Automation PowerFlex 753 AC Drive, model 20F11NC072AA0NNNNN, is designed for general-purpose applications and can control AC servo motors. This drive features a slot-based architecture supporting up to five optional cards, DeviceLogix embedded control technology, AC input with precharge, a DC terminal, and uses shielded cables for control and signal wiring. It requires installation in a suitable enclosure meeting industry standards and environmental conditions, and a reflected wave reduction module can be selected based on its normal duty ratings. The drive includes an option kit with auxiliary power supply, DC bus connectors/bars, and EMC components, along with an internal brake resistor kit and connectivity for safety, feedback, and communication modules. Key specifications include a 400VAC/540VDC rated voltage, frame size 4, 37kW rated wattage, open NEMA/UL enclosure, 72A rated current, and 400V normal duty voltage at 50Hz; separation of motor cables from control/signal wiring is recommended.
Is Your Device Showing These Signs?
The Allen Bradley 20F11NC072AA0NNNNN PowerFlex 753 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 from improper motor parameter settings and addressing cooling fan malfunctions that trigger thermal overload faults are typical repairs. Firmware upgrades are essential to mitigate software bugs and improve drive performance, while replacing damaged power terminals ensures secure connections and prevents arcing.
Technical specifications
The Allen-Bradley PowerFlex 753 AC Drive (model 20F11NC072AA0NNNNN) is a general-purpose drive for AC servo motors. It has a slot-based architecture for optional cards, DeviceLogix embedded control, AC input with precharge, a DC terminal, and uses shielded cables. It requires proper enclosure installation and may need a reflected wave reduction module. The drive includes an option kit with auxiliary power, DC bus connectors, and EMC components, plus an internal brake resistor kit and connectivity for safety, feedback, and communication. Key specs include 400VAC/540VDC voltage, frame size 4, 37kW wattage, open enclosure, 72A current, and 400V normal duty voltage at 50Hz; separating motor and control/signal wiring is advised.
Our Repair Process for the
20F11NC072AA0NNNNN
Our repair process for the Allen Bradley 20F11NC072AA0NNNNN PowerFlex 753 AC drive begins with a comprehensive diagnostic evaluation to pinpoint the failure. This includes a thorough inspection of IGBTs, DC bus capacitors, and the control board for signs of damage or degradation. We address communication errors by reprogramming or replacing corrupted control boards and resolve nuisance tripping by recalibrating motor parameter settings. Cooling fan malfunctions are corrected through fan replacement, and thermal overload faults are cleared. Firmware upgrades are performed to eliminate software bugs and enhance drive performance. Finally, damaged power terminals are replaced to guarantee secure connections and prevent arcing, ensuring the drive operates reliably and efficiently.
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