Product Description
The Allen-Bradley (Rockwell Automation) 20DD077A0NNNA2DCL is a 480V, 77-amp, three-phase AC adjustable-frequency drive for industrial use, featuring an IP20/NEMA Type 1 enclosure for indoor environments, a blank cover (no HMI), no braking, adjustable bus undervoltage trip, internal heat sink thermistor with overtemperature protection, 0.25-second logic ride-thru, and 15-millisecond power ride-thru at full load.
Is Your Device Showing These Signs?
The Allen Bradley 20DD077A0NNNA2DCL commonly experiences failures in the IGBT power module, requiring replacement to restore motor control functionality. Capacitor degradation within the DC bus is a frequent issue, leading to drive trips and necessitating capacitor bank replacement. Encoder feedback problems, stemming from faulty encoder cables or resolver issues, cause erratic motor behavior and demand encoder repair or cable replacement. Overcurrent faults, often triggered by short circuits in the motor windings or excessive load, require thorough motor and wiring inspection. Communication errors on the EtherNet/IP network, resulting from incorrect IP addressing or network configuration, are resolved through network troubleshooting and parameter adjustments.
Technical specifications
The Allen-Bradley 20DD077A0NNNA2DCL is a 480V, 77A industrial AC drive designed for indoor use. It lacks a human-machine interface (HMI) and braking functionality, but includes features like adjustable undervoltage trip, heat sink overtemperature protection, and ride-thru capabilities for brief power interruptions.
Our Repair Process for the
20DD077A0NNNA2DCL
Our repair process for the Allen Bradley 20DD077A0NNNA2DCL begins with a comprehensive diagnostic evaluation to pinpoint the failure. For IGBT power module failures, the module is replaced with a new, tested component. Capacitor degradation in the DC bus requires a complete capacitor bank replacement. Encoder feedback problems are addressed by repairing or replacing the encoder or its cable. Overcurrent faults necessitate a thorough inspection of the motor and wiring, with repairs performed as needed. Communication errors on the EtherNet/IP network are resolved through network troubleshooting and parameter adjustments to ensure proper connectivity.
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
To receive a quote within 2 hours, please provide us with the details of your requirements. Our team will promptly review your request and send you a custom offer.
Ships from Rochester, NY