Product Description
The Allen-Bradley/Rockwell Automation 20BD3P4A3AYYANB0 is a 480V AC drive featuring an internal brake resistor to manage excess energy. This resistor, connected to the drive's DC bus capacitor stage, dissipates harmful voltage spikes by converting electrical energy into heat. A brake IGBT protects against overcurrents and short circuits, providing fast switching capabilities (on in ~400ns, off in ~500ns). This drive has a current rating of 3.4 Amps, a horsepower rating of 2.0 HP, and uses standard 115V AC I/O control. Monitoring is facilitated by LED status indicators and a human-machine interface with an LCD and numeric keypad.
Is Your Device Showing These Signs?
The Allen Bradley 20BD3P4A3AYYANB0 PowerFlex 753 AC drive commonly experiences failures related to the DC bus capacitors degrading, resulting in over-voltage faults and reduced drive performance. IGBT failures are frequent due to thermal stress or excessive current, leading to drive trips and potential damage to the motor. Communication errors on the Ethernet/IP network occur due to firmware corruption or faulty network interface cards. Cooling fan malfunctions cause overheating, triggering thermal overload faults and shortening the lifespan of internal components. Current sensor drift affects motor control accuracy, necessitating calibration or replacement to maintain optimal performance.
Technical specifications
The Allen-Bradley 20BD3P4A3AYYANB0 is a 480V AC drive with a built-in brake resistor that dissipates excess energy as heat to prevent voltage spikes. It's protected by a brake IGBT for overcurrent and short circuit protection, offering fast switching speeds. The drive is rated at 3.4 Amps and 2.0 HP, utilizes 115V AC I/O control, and features LED status indicators and an LCD/keypad HMI for monitoring.
Our Repair Process for the
20BD3P4A3AYYANB0
Our repair process for the Allen Bradley 20BD3P4A3AYYANB0 PowerFlex 753 AC drive begins with a comprehensive diagnostic evaluation to pinpoint the failure. We meticulously inspect the DC bus capacitors, replacing them with high-quality components to eliminate over-voltage faults and restore drive performance. IGBTs are thoroughly tested and replaced if necessary, ensuring robust operation and preventing motor damage. Communication errors are addressed by reflashing or upgrading the firmware and replacing faulty network interface cards. Cooling fan functionality is verified, and malfunctioning fans are replaced to prevent overheating and thermal overload faults. Current sensors are calibrated or replaced to guarantee accurate motor control and optimal performance. Each repaired drive undergoes rigorous testing under load conditions to validate its functionality and reliability before it is returned.
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