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Keyence inverter calibration and refurbishment

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.

Keyence Inverter Repair Services by Roc Industrial LLC

Is your Keyence inverter malfunctioning and causing downtime? Roc Industrial LLC specializes in providing fast, reliable, and expert Keyence inverter repair services. We understand the critical role Keyence inverters play in your automation systems, and we are committed to getting them back up and running as quickly as possible. Keyence inverters are essential components in various industrial applications, controlling motor speed and torque with precision. Trust Roc Industrial LLC for all your Keyence inverter troubleshooting, testing, calibration, and refurbishment needs.



About Keyence Inverters

Keyence is a globally recognized leader in the development and manufacturing of automation sensors, vision systems, laser markers, measuring instruments, and more. Their inverters are known for their high performance, reliability, and advanced features. Keyence inverters are designed to provide precise motor control, energy efficiency, and seamless integration into complex automation systems. They are widely used in industries such as manufacturing, robotics, CNC machining, and packaging.


Keyence offers a diverse range of inverter models tailored to meet the specific needs of different applications. These inverters are engineered to deliver optimal performance and durability, even in demanding industrial environments. However, like all electronic equipment, Keyence inverters can experience failures over time due to wear and tear, environmental factors, or electrical surges. When this happens, you need a trusted repair partner like Roc Industrial LLC to restore your inverters to their original operating condition.



Supported Models & Series

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

  • VZ Series Inverters

  • SZ Series Inverters

  • SV Series Inverters

  • VG Series Inverters

  • Various legacy Keyence Inverter models

  • Keyence Servo Drives with integrated inverter functionality

  • Keyence AC Inverter Drives

If you don't see your specific model listed, please contact us. Our experienced technicians can handle a wide variety of Keyence inverter repair needs.



Common Keyence Inverter Problems We Repair

Keyence inverters are built to last, but they can still experience problems that require professional repair. Here are some common issues we address:

  • No Output: The inverter fails to provide any voltage or current to the motor.

  • Overvoltage Errors: The inverter detects an excessive voltage level, causing it to shut down.

  • Undervoltage Errors: The inverter detects an insufficient voltage level, leading to malfunction.

  • Communication Errors: The inverter is unable to communicate with the control system or other devices.

  • Overheating: The inverter's temperature exceeds its safe operating limit, triggering a shutdown.

  • Blown Fuses: Internal fuses blow due to overcurrent or short circuits.

  • Drive Faults: The inverter reports a generic drive fault, indicating an internal problem.

  • Motor Overload: The inverter detects that the motor is drawing excessive current.

  • Parameter Errors: Incorrect or corrupted parameter settings cause the inverter to malfunction.

  • IGBT Failures: Failure of the Insulated Gate Bipolar Transistors (IGBTs), a critical component in the inverter's power stage.

  • Encoder Faults: Issues with the motor encoder feedback signal.

  • Current Imbalance: Unequal current distribution among the inverter's output phases.

  • Ground Faults: Detection of current leakage to ground.

  • Display Issues: Problems with the inverter's display screen, such as dimness or unreadable characters.


Our Keyence Inverter Repair Process

Roc Industrial LLC follows a rigorous and proven process to ensure the highest quality Keyence inverter repairs:

  1. Free Evaluation and Quote: We begin with a free evaluation of your faulty Keyence inverter. Our technicians carefully inspect the unit to identify the root cause of the problem. Based on our findings, we provide you with a detailed repair quote, outlining the necessary repairs and associated costs.

  2. Shipping Instructions: Once you approve the quote, we provide you with clear and easy-to-follow shipping instructions to ensure your inverter arrives safely at our repair facility. We can also arrange for pickup services in certain areas.

  3. Diagnosis Using Specialized Test Equipment: Upon arrival, your Keyence inverter undergoes a thorough diagnosis using our state-of-the-art test equipment. We simulate real-world operating conditions to accurately identify all faulty components and potential issues.

  4. Component-Level Repair and Replacement: Our skilled technicians perform component-level repairs, replacing faulty components with high-quality replacements. We use only genuine or equivalent parts to ensure optimal performance and reliability. We meticulously clean and inspect all other components to prevent future failures.

  5. Calibration and Parameter Reset: After component replacement, we calibrate the inverter to factory specifications and reset all parameters to ensure proper operation. This step is crucial for restoring the inverter's original performance characteristics.

  6. Load Testing and Quality Checks: We subject the repaired Keyence inverter to rigorous load testing to verify its performance under various operating conditions. We monitor voltage, current, frequency, and other critical parameters to ensure it meets or exceeds original specifications. Our quality control team performs a final inspection to ensure the repair meets our strict standards.

  7. Warranty-Backed Return and Support: We back our Keyence inverter repairs with a comprehensive warranty, giving you peace of mind. Your repaired inverter is carefully packaged and shipped back to you promptly. Our customer support team is available to answer any questions you may have and provide ongoing technical assistance.


Nationwide Repair Services

Roc Industrial LLC provides Keyence inverter repair services to customers nationwide. Whether you're located in New York, Los Angeles, Chicago, Houston, Dallas, or any other city in the United States, we can help. We offer fast shipping options and quick turnaround times to minimize downtime and keep your operations running smoothly.


We understand that downtime can be costly, which is why we prioritize speed and efficiency in our repair process. Our goal is to get your Keyence inverters back in operation as quickly as possible, without compromising on quality or reliability. Contact us today to learn more about our nationwide repair services.



Why Choose Roc Industrial LLC?

When you choose Roc Industrial LLC for your Keyence inverter repair needs, you benefit from:

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

  • Warranty-Backed Repairs: We stand behind our work with a comprehensive warranty on all Keyence inverter repairs.

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

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

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

  • Exceptional Customer Support: Our dedicated customer support team is available to answer your questions and provide technical assistance.

  • Free Evaluations: We offer free evaluations to accurately diagnose the problem and provide a transparent repair quote.

  • Component Level Repair: We repair down to the component level, saving you money compared to full unit replacements.

Don’t let a faulty Keyence inverter slow down your operations. Contact Roc Industrial LLC today for a free evaluation and fast, reliable Keyence inverter repair.

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