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Fanuc resolver testing: IGBT failure fixed

ISO 9001:2015 Certified Quality

Our certified process ensures consistent quality and reliable repairs every time.

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2-Year Repair Warranty

We stand behind our repairs with an extensive 2-year warranty on parts and labor for your peace of mind.

Fast Turnaround Time

Our efficient process and large parts inventory help minimize your operational downtime.

Expert Component-Level Repair

We find and replace individual failed components, offering a more affordable and effective repair than full replacement.

Free, No-Obligation Quote

Send us your item for a free evaluation and receive a detailed repair quote with no commitment required.

Fanuc Resolver Repair Services by Roc Industrial LLC

Is your Fanuc resolver malfunctioning and causing downtime? Roc Industrial LLC specializes in providing fast, reliable, and expert Fanuc resolver repair services. Resolvers are critical components in servo systems, providing accurate position feedback for precise motor control. When they fail, it can bring your entire operation to a standstill. Roc Industrial LLC offers comprehensive repair solutions to get your Fanuc resolvers back in optimal working condition, minimizing downtime and maximizing productivity. We understand the urgency of these situations and are committed to providing the fastest turnaround times possible. With decades of experience and a commitment to quality, Roc Industrial LLC is your trusted partner for all your Fanuc resolver repair needs.



About Fanuc Resolvers

Fanuc is a globally recognized leader in industrial automation, renowned for its high-performance robots, CNC systems, and servo drives. Fanuc resolvers are integral components within these systems, playing a crucial role in providing accurate position feedback for servo motors. These resolvers are known for their robustness and reliability, but even the best components can fail over time due to wear and tear, environmental factors, or electrical surges. Fanuc resolvers are widely used in various industries, including CNC machining, robotics, automation, and manufacturing, where precise motor control is essential for optimal performance. Their reputation for accuracy and durability makes them a preferred choice for demanding applications.


Fanuc resolvers are essential for closed-loop control systems, ensuring that the motor accurately follows the commands issued by the controller. They provide continuous feedback on the motor's position, allowing the controller to make real-time adjustments to maintain the desired speed and torque. This precise control is critical for applications requiring high accuracy and repeatability, such as CNC machining and robotic assembly. When a Fanuc resolver fails, it can lead to a variety of problems, including inaccurate positioning, erratic motor behavior, and complete system shutdown. Roc Industrial LLC understands the importance of these components and offers comprehensive repair services to restore them to optimal working condition.



Supported Models & Series

We repair a wide range of Fanuc resolver models and series, including but not limited to:

  • A860-0309-T001

  • A860-0309-T002

  • A860-0309-T003

  • A860-0309-T011

  • A860-0309-T012

  • A860-0309-T013

  • A860-0309-T101

  • A860-0309-T102

  • A860-0309-T103

  • Beta Series Resolvers

  • Alpha Series Resolvers

  • Various Resolver Feedback Cables

  • Incremental Encoders

  • Absolute Encoders


Common Fanuc Resolver Problems We Repair

Customers often experience a variety of issues with their Fanuc resolvers, leading to decreased performance or complete system failure. Roc Industrial LLC is equipped to handle a wide array of these problems, providing comprehensive repair solutions to get your equipment back up and running.

  • No Output Signal: The resolver fails to provide any feedback signal to the servo drive, preventing the motor from operating.

  • Inaccurate Position Feedback: The resolver provides incorrect position information, leading to inaccurate motor movements and potential damage to the equipment.

  • Signal Noise: Excessive noise in the resolver signal can interfere with the servo drive's ability to accurately interpret the position feedback.

  • Communication Errors: The resolver fails to communicate properly with the servo drive, resulting in error messages and system shutdown.

  • Overheating: Excessive heat can damage the resolver's internal components, leading to premature failure.

  • Blown Fuses: Internal shorts or overloads can cause the resolver's fuses to blow, preventing it from operating.

  • Encoder Faults: Issues with the encoder portion of the resolver (if equipped) can lead to inaccurate position feedback.

  • Resolver Cable Damage: Damaged or frayed resolver cables can cause signal degradation or complete loss of communication.

  • Resolver Winding Failure: Internal winding shorts or opens can render the resolver unusable.

  • Contamination: Ingress of contaminants such as oil, coolant, or dust can damage the resolver's internal components.


Our Fanuc Resolver Repair Process

Roc Industrial LLC follows a rigorous and comprehensive repair process to ensure that your Fanuc resolvers are restored to optimal working condition. Our experienced technicians use specialized test equipment and component-level repair techniques to diagnose and resolve a wide range of issues.

  1. Free Evaluation and Quote: We begin with a free evaluation of your Fanuc resolver to determine the extent of the damage and provide you with a detailed repair quote.

  2. Shipping Instructions: Once you approve the quote, we provide you with clear and concise shipping instructions to ensure that your resolver arrives safely at our repair facility.

  3. Diagnosis Using Specialized Test Equipment: Our technicians use specialized test equipment to thoroughly diagnose the resolver and identify the root cause of the problem. This includes testing the resolver's signal output, insulation resistance, and winding integrity. We also perform Fanuc resolver testing to ensure proper functionality.

  4. Component-Level Repair and Replacement: We perform component-level repairs, replacing faulty components with high-quality replacements. This includes replacing damaged windings, bearings, and other critical components. We also address issues such as IGBT failure fixed.

  5. Load Testing and Quality Checks: After the repair is complete, we perform rigorous load testing and quality checks to ensure that the resolver meets or exceeds original performance specifications.

  6. Warranty-Backed Return and Support: We back our repairs with a comprehensive warranty, providing you with peace of mind and assurance of quality. We also offer ongoing technical support to answer any questions you may have.


Nationwide Repair Services

Roc Industrial LLC provides Fanuc resolver repair services to customers nationwide. Whether you are located in New York, Los Angeles, Chicago, Houston, Dallas, or any other city in the United States, we can help you get your equipment back up and running quickly and efficiently. We offer fast shipping options and quick turnaround times to minimize downtime and maximize productivity.


We understand that downtime can be costly, which is why we are committed to providing the fastest possible turnaround times without compromising on quality. Our nationwide service network allows us to reach customers quickly and efficiently, regardless of their location. We also offer expedited repair services for critical situations where downtime is unacceptable.



Why Choose Roc Industrial LLC?

When it comes to Fanuc resolver repair, Roc Industrial LLC offers a number of distinct advantages:

  • 30+ Years of Experience: We have decades of experience in repairing industrial electronic equipment, including Fanuc resolvers.

  • Warranty-Backed Repairs: We stand behind our repairs with a comprehensive warranty, providing you with peace of mind.

  • Thousands of Parts in Stock: We maintain a large inventory of replacement parts, allowing us to complete repairs quickly and efficiently.

  • Fast Turnaround, Often Same-Day: We understand the urgency of downtime and offer fast turnaround times, often same-day service.

  • ISO-Certified Repair Processes: Our repair processes are ISO-certified, ensuring the highest standards of quality and reliability.

  • Exceptional Customer Support: We provide exceptional customer support, answering your questions and addressing your concerns promptly and professionally.

Don't let a faulty Fanuc resolver slow down your operations. Contact Roc Industrial LLC today for a free evaluation and fast, reliable repair. We are your trusted partner for all your Fanuc resolver repair and troubleshooting needs. We offer free evaluation and warranty on all repairs.

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