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Product Description
The Allen-Bradley 20BD077A0NNNAND1 is a PowerFlex 700 series AC drive designed for 3-phase induction motor control. It operates on 3-phase input voltage, supports 480 VAC input with a 60 HP output, and delivers 77 Amps output current within a 32-528 VAC operating range (460-528 VAC full-power range). Housed in an IP20-rated, frame 4 enclosure, it dissipates 930 Watts and operates between 32-122F, cooled by a 190 CFM fan producing 59 dB of noise. Vertical mounting requires 101.6 mm clearance above and below. It lacks a built-in communication slot but offers 19 optional communication modules. Standard features include an encoder, CE line filter, vector control, and common-mode choke; however, it lacks a brake IGBT, brake resistor, and integrated HMI, while supporting 115 VAC I/O.
Is Your Device Showing These Signs?
The Allen Bradley 20BD077A0NNNAND1 PowerFlex 755 AC drive commonly experiences issues related to IGBT failures, often indicated by fault codes stemming from overcurrent or ground faults. Capacitor bank degradation leads to DC bus undervoltage faults and reduced drive performance. Encoder feedback problems cause erratic motor control and speed regulation issues, necessitating encoder replacement or wiring repair. Communication failures on the EtherNet/IP network disrupt control system integration, requiring firmware updates or network configuration adjustments. Cooling fan malfunctions result in overheating and premature component failure; replace fans promptly to maintain thermal management.
Technical specifications
The Allen-Bradley 20BD077A0NNNAND1 is a PowerFlex 700 AC drive for 3-phase induction motors. It accepts 480 VAC 3-phase input, outputs 60 HP and 77 Amps, and operates within a 32-528 VAC range. It's an IP20-rated, frame 4 unit with a 930W dissipation, 32-122F operating temperature, and fan cooling with 59 dB noise. It requires vertical mounting clearance and lacks a built-in communication slot but offers 19 optional modules. Standard features include an encoder, CE filter, vector control, and common-mode choke, but it lacks a brake IGBT, resistor, and HMI, while supporting 115 VAC I/O.
Our Repair Process for the
20BD077A0NNNAND1
Our repair process for the Allen Bradley 20BD077A0NNNAND1 PowerFlex 755 AC drive begins with a comprehensive diagnostic evaluation to pinpoint the root cause of the failure, focusing on common issues such as IGBT failures indicated by overcurrent or ground fault codes. Technicians assess the capacitor bank for degradation, addressing DC bus undervoltage faults to restore drive performance. Encoder feedback systems are thoroughly inspected and repaired or replaced to resolve erratic motor control and speed regulation issues. Communication failures on the EtherNet/IP network are resolved through firmware updates or network configuration adjustments. Cooling fan functionality is verified, and malfunctioning fans are replaced to prevent overheating and ensure optimal thermal management.
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