Product Description
The Allen-Bradley 20BD248A3AYNACN0 is a PowerFlex 700 series adjustable frequency AC drive designed for 480VAC 3-phase input and delivering 248 Amps output. It features an IP20 Type 1 enclosure with conformal coating, an integrated brake IGBT (but no drive-mounted brake resistor), and a ControlNet communication module with an LCD HMI and numeric keypad. Protection features include a heatsink thermistor monitored by a microprocessor for over-temperature trips, a hardware overcurrent trip rated at 220-300% of rated current, and logic control noise immunity against showering arc transients up to 1500V peak. It offers power ride-thru of 15ms and logic control ride-thru of 0.5ms at full load. Installation requires an environment meeting specific conditions: altitude below 1000m, relative humidity between 5-95% (non-condensing), storage temperature from -40 to 70C, operating temperature from 0 to 50C, and an atmosphere free of volatile, corrosive gases, vapors, and dust. The drive operates with a frequency tolerance of 47-63 Hz.
Is Your Device Showing These Signs?
The Allen Bradley 20BD248A3AYNACN0 PowerFlex 755 AC drive commonly experiences issues related to IGBT failures, often indicated by overcurrent faults and requiring IGBT replacement. Capacitor bank degradation is another frequent problem, leading to DC bus undervoltage faults and necessitating capacitor replacement. Communication errors on the EtherNet/IP network, stemming from faulty network interface cards or configuration issues, demand troubleshooting and potential NIC replacement. Cooling fan failures cause overheating and thermal trips, mandating fan replacement to maintain optimal operating temperature. Parameter corruption within the drive's memory results in erratic motor control and requires parameter reset or firmware reflashing.
Technical specifications
The Allen-Bradley 20BD248A3AYNACN0 is a PowerFlex 700 AC drive for 480VAC 3-phase input, providing 248A output. It has an IP20 enclosure with conformal coating, a built-in brake IGBT (but no resistor), and ControlNet communication with an LCD HMI. It includes over-temperature and overcurrent protection, noise immunity, and ride-thru capabilities. Installation requires specific environmental conditions regarding altitude, humidity, temperature, and air quality, and it operates with a frequency tolerance of 47-63 Hz.
Our Repair Process for the
20BD248A3AYNACN0
Our repair process for the Allen Bradley 20BD248A3AYNACN0 PowerFlex 755 AC drive begins with a comprehensive diagnostic evaluation to pinpoint the root cause of the malfunction. For IGBT failures indicated by overcurrent faults, we proceed with immediate IGBT replacement. Capacitor bank degradation, identified through DC bus undervoltage faults, necessitates capacitor replacement. Communication errors on the EtherNet/IP network are addressed through thorough troubleshooting, with faulty network interface cards replaced as needed. Overheating issues due to cooling fan failures are resolved by replacing the faulty fan to restore proper cooling. Parameter corruption, leading to erratic motor control, is rectified through parameter reset or firmware reflashing to restore factory settings or update to the latest firmware version.
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.
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Ships from Rochester, NY