Product Description
The Allen-Bradley 20BC085A3NNNANC0 PowerFlex 700 AC drive controls 3-phase induction motors, accepting a 400V AC 3-phase input and providing an 85A, 45kW output. Housed in an IP20 NEMA/UL Type 1 enclosure suitable for cabinet mounting (inside or outside), it features an LCD display with a numeric keypad, supports sensorless vector control, and uses 24V DC for I/Os. Standard features include a CE filter and CM choke; however, a brake resistor, brake IGBT, and communication slot are optional. Available communication options include BACnet, Ethernet (single/dual port), Profibus DP, and ControlNet. Operating ambient temperature should be kept between 0-50C to avoid derating, with a storage temperature range of -40 to 70C. The fan produces 59 dB of noise at 190 CFM, dissipating 930W of heat (722W external, 207W internal). This frame-4 unit weighs 24.49 kg and measures 29.87 x 8.66 x 7.94 inches. Installation, commissioning, and maintenance should only be performed by qualified personnel, and bus capacitor voltage must be verified as discharged before any work is undertaken to prevent electrical shock.
Is Your Device Showing These Signs?
The Allen Bradley 20BC085A3NNNANC0 Servo Drive commonly experiences issues such as blown power modules due to overvoltage or excessive current draw, requiring replacement of IGBTs or the entire module. Communication faults arise from corrupted firmware, necessitating a firmware update or complete reflash. Encoder feedback problems, stemming from damaged encoder cables or faulty encoder interfaces, demand cable replacement or interface board repair. Overheating issues result from inadequate cooling or a malfunctioning fan, which requires fan replacement or heatsink cleaning. Parameter corruption leads to erratic motor behavior, mandating parameter verification and restoration to factory defaults if necessary.
Technical specifications
The Allen-Bradley 20BC085A3NNNANC0 PowerFlex 700 AC drive is a 400V 3-phase input, 85A/45kW output drive for controlling 3-phase induction motors. It's an IP20-rated, cabinet-mountable unit with an LCD display, sensorless vector control, and 24V DC I/Os. Standard features include a CE filter and CM choke, while brake components and communication modules (BACnet, Ethernet, Profibus DP, ControlNet) are optional. It operates between 0-50C, dissipates 930W of heat, and weighs 24.49 kg. Only qualified personnel should install, maintain, or commission the drive, ensuring capacitor discharge before working on it.
Our Repair Process for the
20BC085A3NNNANC0
Our repair process for the Allen Bradley 20BC085A3NNNANC0 Servo Drive begins with a thorough diagnostic evaluation to pinpoint the failure. For blown power modules, we replace the faulty IGBTs or the entire module. Communication faults are rectified through firmware updates or a complete firmware reflash. Encoder feedback problems are addressed by replacing damaged encoder cables or repairing the encoder interface board. Overheating issues are resolved by replacing malfunctioning fans or cleaning the heatsink. Parameter corruption is corrected by verifying parameters and restoring the drive to factory defaults if necessary.
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.