Product Description
The Rockwell Automation PowerFlex 700 AC drive, model 20BC085A0NNNADC0, is a 400VAC, 85 Amp variable frequency drive with an adjustable frequency setting. This Frame 4 drive, featuring a conformal coating, delivers 45 kilowatts of power under normal conditions and utilizes vector control for superior torque regulation. It's designed for panel mounting in an IP20-rated enclosure (not waterproof) and includes CE filters and a CM choke, but lacks a precharge circuit, drive-mounted braking resistor, and braking system. The front panel has a blank cover instead of a human-machine interface, and communication is facilitated via a DeviceNet adapter with activity displayed on the front panel. Input/output is rated at 24VDC, and a shielded armor cable minimizes electromagnetic noise. The drive tolerates 1g vibration and 15g shock (for 11ms), supporting intermittent overloads of 110% for 1 minute and 150% for 3 seconds. Enhanced control is provided by a Position Indexer (speed profiler) that uses a 16-step indexer for point-to-point positioning or velocity profiling based on encoder counts, digital input, and parameter levels/time.
Is Your Device Showing These Signs?
The Allen Bradley 20BC085A0NNNADC0 Servo Drive commonly experiences issues related to IGBT failures, often indicated by fault codes stemming from overcurrent or short circuits within the power stage. Capacitor degradation on the DC bus is a frequent problem, leading to voltage instability and drive malfunction. Encoder feedback problems, resulting in positioning errors and velocity fluctuations, are also typical. Communication faults on the EtherNet/IP network, due to cabling issues or configuration errors, require troubleshooting. Resolving these issues involves component replacement, firmware updates, and thorough system diagnostics.
Technical specifications
The Rockwell Automation PowerFlex 700 (20BC085A0NNNADC0) is a 400VAC, 85A (45kW) variable frequency drive designed for panel mounting. It features vector control, a conformal coating, CE filters, and a CM choke, but lacks precharge, braking resistor, and braking system. It uses a DeviceNet adapter for communication, has a blank front panel, and 24VDC I/O. It's rated IP20, tolerates moderate vibration and shock, and allows short-term overloads. A Position Indexer enables precise point-to-point positioning and velocity profiling.
Our Repair Process for the
20BC085A0NNNADC0
Our repair process for the Allen Bradley 20BC085A0NNNADC0 Servo Drive begins with a comprehensive diagnostic evaluation to pinpoint the root cause of the malfunction, focusing on IGBT failures, capacitor degradation, encoder feedback problems, and communication faults. Confirmed component failures mandate immediate replacement with new, high-quality parts. DC bus capacitors are assessed and replaced if degradation is present. Encoder functionality is verified and corrected to eliminate positioning errors. Communication issues are resolved through cable inspection, reconfiguration, and firmware updates as required. Post-repair, rigorous testing is conducted to ensure the drive operates within specified parameters and all fault codes are cleared, guaranteeing optimal performance and reliability.
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