Product Description
The Allen-Bradley PowerFlex 700 series drive, model 20BC085A0NNNACN0, is a 3-phase, 85-Amp variable frequency drive (VFD) that converts AC power to DC, adjusts the frequency, and then converts it back to AC to control AC motor speed and torque, delivering up to 45 kW under normal load. It features an IP20-rated, panel-mountable enclosure (suitable for cabinet installation but not water-resistant), lacks a built-in braking system but includes a braking resistor, and utilizes a ControlNet adapter for internal communication. Without a human-machine interface, the front panel displays status indicators. High-speed analog inputs enhance response, and a droop function enables load sharing. Built-in protective features include ground fault and electronic motor overload protection for simplified installation and increased motor lifespan.
Is Your Device Showing These Signs?
The Allen Bradley 20BC085A0NNNACN0 Servo Drive commonly experiences issues related to IGBT failures, often indicated by fault codes. Resolving this requires IGBT replacement and thorough testing of gate driver circuitry. Capacitor degradation within the DC bus is another frequent problem, leading to instability and requiring capacitor replacement. Encoder feedback issues, stemming from damaged encoder cables or faulty encoder modules, cause positioning errors and necessitate cable repair or encoder replacement. Overcurrent faults, triggered by motor winding shorts or excessive load, demand investigation of the motor and load conditions, along with potential drive parameter adjustments. Communication errors on the ControlNet network, due to cabling problems or node configuration conflicts, require network diagnostics and reconfiguration.
Technical specifications
The Allen-Bradley PowerFlex 700 (20BC085A0NNNACN0) is an 85-Amp, 3-phase VFD that controls AC motor speed and torque by converting AC to DC and back, outputting up to 45 kW. It's IP20-rated for panel mounting, includes a braking resistor but no built-in braking, uses ControlNet for communication, and has status indicators instead of an HMI. Features include high-speed analog inputs, a droop function for load sharing, and built-in ground fault and motor overload protection.
Our Repair Process for the
20BC085A0NNNACN0
Our repair process for the Allen Bradley 20BC085A0NNNACN0 Servo Drive begins with a comprehensive diagnostic assessment to pinpoint the failure. For IGBT failures, indicated by fault codes, we replace the faulty IGBTs and rigorously test the gate driver circuitry to ensure proper functionality. Capacitor degradation in the DC bus necessitates capacitor replacement to restore stability. Encoder feedback issues are addressed through cable repair or encoder replacement, depending on the source of the positioning errors. Overcurrent faults require a thorough investigation of the motor and load conditions, followed by necessary repairs and drive parameter adjustments. Communication errors on the ControlNet network are resolved through network diagnostics and reconfiguration to eliminate cabling problems or node configuration conflicts.
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.