Product Description
The Rockwell Automation PowerFlex 700 drive, model 20BD077A0NNNADD0, is a 60 HP, three-phase drive with a 480 VAC input voltage and 77-ampere output current. It features a frame size 5, IP20 NEMA/UL Type 1 enclosure, a blank cover operator interface, DeviceNet communication, vector control, and 115 VAC I/O. It includes a CE EMC directive-compliant second environment filter, no brake resistor, no IGBT braking, a CE filter, and a CM choke to minimize electrical interference. Additional features include a heatsink thermistor for overtemperature protection, a 15-millisecond ground fault trip, a 5-95% non-condensing relative humidity rating, and an operating/storage temperature range of 0-50C and -40-70C, respectively.
Is Your Device Showing These Signs?
The Allen Bradley 20BD077A0NNNADD0 PowerFlex 755 AC drive commonly experiences issues related to IGBT failures, often indicated by fault codes and requiring module replacement. Capacitor bank degradation is a frequent problem, leading to DC bus undervoltage faults and necessitating capacitor replacement. Communication errors on the Ethernet/IP network, stemming from corrupted firmware or faulty network interface cards, demand firmware reflashing or card replacement. Overcurrent faults, resulting from motor insulation breakdown or incorrect drive parameters, require motor testing and parameter adjustments. Encoder feedback problems, causing speed regulation issues, mandate encoder inspection and replacement if defective.
Technical specifications
The Rockwell Automation PowerFlex 700 drive, model 20BD077A0NNNADD0, is a 60 HP, 480 VAC, 77-ampere three-phase drive. It has a frame size 5, IP20 NEMA/UL Type 1 enclosure, DeviceNet communication, vector control, 115 VAC I/O, and a blank cover operator interface. It also includes EMC filtering, a CM choke, a heatsink thermistor, ground fault protection, and specified humidity and temperature operating ranges. It does not include a brake resistor or IGBT braking.
Our Repair Process for the
20BD077A0NNNADD0
Our repair process for the Allen Bradley 20BD077A0NNNADD0 PowerFlex 755 AC drive begins with a comprehensive diagnostic evaluation to pinpoint the failure. For IGBT failures, the module is replaced with a new, tested component. Capacitor bank degradation is addressed through complete capacitor replacement to restore proper DC bus voltage. Communication errors are resolved by reflashing the firmware or replacing the network interface card, depending on the root cause. Overcurrent faults necessitate thorough motor testing and subsequent adjustment of drive parameters to ensure proper operation. Encoder feedback problems are corrected by inspecting the encoder and replacing it if found to be defective, guaranteeing accurate speed regulation.
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.