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Product Description
The ABB ACS550-U1-097A-4 is a robust and reliable general purpose AC drive engineered for a broad spectrum of industrial applications. This drive provides precise motor speed and torque control, optimizing energy efficiency and process performance. It features advanced sensorless vector control, delivering exceptional performance even without encoder feedback. The integrated EMC filter and braking chopper minimize installation costs and ensure compliance with stringent regulatory standards. Its user-friendly interface, including an intuitive control panel, simplifies programming and operation. The ACS550-U1-097A-4 is a dependable solution for demanding environments, offering enhanced productivity and reduced downtime.
Is Your Device Showing These Signs?
ABB ACS550-U1-097A-4 drives commonly exhibit faults related to DC bus overvoltage, often stemming from excessive regenerative energy or inadequate braking resistor capacity. Overcurrent trips are frequent, indicating motor insulation breakdown, incorrect motor parameters programmed, or drive overload. Communication failures on the fieldbus network, such as Modbus or Ethernet, require troubleshooting of cabling, network configuration, and parameter settings. Capacitor bank degradation leads to reduced drive performance and eventual failure, necessitating replacement. IGBT failures are also a concern, resulting from voltage spikes, thermal stress, or gate drive issues.
Technical specifications
The ABB ACS550-U1-097A-4 is a robust, general-purpose AC drive engineered for comprehensive motor control in diverse industrial applications. This drive accepts a three-phase, 380-480V AC input and delivers a continuous output current of 97 Amperes, suitable for motors up to 55kW (75 horsepower). It features sensorless vector control, providing precise speed and torque regulation across varying load conditions, enhancing process efficiency and stability. Integrated functionalities include PID control, brake chopper, and EMC filter, minimizing external component requirements and simplifying installation. The drive supports multiple communication protocols, such as Modbus RTU, enabling seamless integration into existing automation systems. Its coated circuit boards ensure reliable operation in harsh environments, while the user-friendly interface and adaptive programming facilitate straightforward commissioning and diagnostics.
Our Repair Process for the
ACS550-U1-097A-4
Our repair process for ABB ACS550-U1-097A-4 drives begins with a comprehensive diagnostic evaluation to pinpoint the root cause of the reported fault, focusing on common issues such as DC bus overvoltage, overcurrent trips, communication failures, capacitor bank degradation, and IGBT failures. This involves thorough inspection of the drive's components, including the DC bus capacitors, braking resistor circuit, IGBT modules, and gate drive circuitry. Motor insulation and parameter settings are verified to eliminate external factors contributing to overcurrent. Fieldbus communication is tested, and cabling, network configuration, and parameter settings are scrutinized. Defective components are replaced with genuine ABB parts, and the drive undergoes rigorous testing under load conditions to ensure it meets original performance specifications. Finally, all parameter settings are verified and adjusted as needed before the drive is returned.
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