Product Description
The Allen-Bradley 20G21NC043JA0NNNNN is a general-purpose PowerFlex 755TS motor control drive, Size 3 frame, designed for diverse industrial applications. It supports 22 kW in normal duty and 18.5 kW in heavy duty, operating at 400VAC/50Hz (0-400VAC output) or 540VDC input. This 6-pulse drive features TotalFORCE technology for efficient, responsive motor control with self-monitoring capabilities. Suitable for both basic and advanced applications, it has IP00-rated enclosures and requires indoor installation in clean environments. It includes an input filter cap, common mode cap jumpers, and an internal DB transistor (31.6 Ohms minimum braking resistance), but lacks a factory-installed HMI and accessory kits, though slots are available for optional accessories.
Is Your Device Showing These Signs?
The Allen Bradley 20G21NC043JA0NNNNN PowerFlex 755 AC drive commonly experiences issues related to IGBT failures, often stemming from overvoltage events or excessive current draw. Resolving communication faults on the EtherNet/IP network requires verifying cabling integrity, IP address configurations, and network switch settings. Capacitor bank degradation leads to DC bus undervoltage faults, necessitating capacitor replacement. Firmware corruption during upgrades causes operational errors, requiring a firmware re-flash using ControlFlash software. Encoder feedback problems result in speed regulation issues, demanding encoder cable inspection and encoder alignment verification.
Technical specifications
The Allen-Bradley 20G21NC043JA0NNNNN is a PowerFlex 755TS Size 3 motor control drive for industrial use, supporting 22kW (normal) or 18.5kW (heavy) duty at 400VAC/50Hz or 540VDC. It uses TotalFORCE technology for efficient motor control with self-monitoring. It's IP00-rated, suitable for indoor use, and includes an input filter cap, common mode cap jumpers, and an internal DB transistor. It lacks a factory HMI and accessory kits, but has slots for optional accessories.
Our Repair Process for the
20G21NC043JA0NNNNN
Our repair process for the Allen Bradley 20G21NC043JA0NNNNN PowerFlex 755 AC drive begins with a comprehensive diagnostic evaluation to pinpoint the failure. For IGBT failures, we conduct thorough testing to identify the root cause, such as overvoltage or excessive current, and replace the faulty IGBT modules with new, high-quality components. Communication faults on the EtherNet/IP network are resolved through meticulous verification of cabling, IP address configurations, and network switch settings, ensuring seamless network connectivity. Capacitor bank degradation is addressed by replacing the deteriorated capacitors, restoring proper DC bus voltage levels. Firmware corruption is rectified by performing a complete firmware re-flash using ControlFlash software, ensuring the drive operates with the correct software version. Encoder feedback problems are corrected by inspecting encoder cables for damage and verifying encoder alignment, guaranteeing accurate speed regulation.
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