Product Description
The Allen-Bradley 20AC072A3AYNANN0 PowerFlex 70 series AC drive is a 50 HP, 72 Amp, 400V 3-phase variable frequency drive designed for controlling machine speed and torque via frequency adjustment. It utilizes a Volt/Hertz algorithm for basic fan and pump applications and features an IGBT braking system without a braking resistor or external chopper. Housed in a panel-mounted, E-frame NEMA/UL Type 1/IP20 enclosure, it lacks safe torque-off and encoder feedback but offers enhanced control and complies with EMC directives. A multi-lingual human-machine interface on the front panel facilitates configuration, troubleshooting, and communication.
Is Your Device Showing These Signs?
The Allen Bradley 20AC072A3AYNANN0 commonly experiences failures related to IGBT degradation, capacitor ESR increase, and cooling fan malfunction, leading to over-temperature faults and drive trips. Resolving these issues involves replacing degraded IGBTs, swapping out dried electrolytic capacitors on the DC bus, and servicing or replacing the cooling fan to restore proper thermal management. Firmware corruption can also occur, necessitating a firmware reload or drive parameter reset to factory defaults. Communication failures on the EtherNet/IP network are addressed through troubleshooting network connectivity and verifying proper IP address configuration.
Technical specifications
The Allen-Bradley 20AC072A3AYNANN0 PowerFlex 70 is a 50 HP, 72 Amp, 400V 3-phase AC drive used to control machine speed and torque. It uses Volt/Hertz control, IGBT braking (without resistor/chopper), and comes in a panel-mounted NEMA/UL Type 1/IP20 enclosure. It lacks safe torque-off and encoder feedback but offers enhanced control and EMC compliance, with a multi-lingual HMI for easy operation.
Our Repair Process for the
20AC072A3AYNANN0
Our repair process for the Allen Bradley 20AC072A3AYNANN0 drive begins with a comprehensive diagnostic evaluation to pinpoint the root cause of failure. This evaluation includes a thorough inspection of IGBTs, replacement of any degraded components, and capacitor testing, with replacement of dried electrolytic capacitors on the DC bus. The cooling fan is serviced or replaced to ensure proper thermal management. In cases of firmware corruption, the firmware is reloaded, or drive parameters are reset to factory defaults. Communication failures on the EtherNet/IP network are resolved through meticulous troubleshooting of network connectivity and verification of correct IP address configuration.
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.