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Mitsubishi motion controller exchange program: thermal overload 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.

Mitsubishi Motion Controller Repair Services by Roc Industrial LLC

Is your Mitsubishi motion controller malfunctioning? Roc Industrial LLC specializes in fast, reliable Mitsubishi motion controller repair services to minimize your downtime. We understand the critical role these controllers play in your automation systems. With our experienced technicians and state-of-the-art equipment, we offer comprehensive repair solutions. Trust Roc Industrial LLC to get your Mitsubishi motion controllers back to peak performance quickly and efficiently.



About Mitsubishi Motion Controllers

Mitsubishi Electric is a global leader in automation technology, and their motion controllers are renowned for their precision, reliability, and advanced features. These controllers are integral to a wide range of industrial applications, providing precise control over motors and other actuators. Mitsubishi motion controllers are designed to handle complex motion profiles, ensuring smooth and accurate operation in demanding environments.


Mitsubishi motion controllers are widely used in industries such as robotics, CNC machining, packaging, and material handling. Their advanced features, including high-speed processing, network connectivity, and sophisticated programming capabilities, make them a preferred choice for manufacturers seeking to optimize their automation processes. The MELSERVO series, in particular, is known for its high performance and versatility, offering solutions for a variety of motion control applications.



Supported Models & Series

We repair a wide range of Mitsubishi motion controller models and series, including but not limited to:

  • MELSERVO MR-J4 Series

  • MELSERVO MR-JE Series

  • MELSERVO MR-JN Series

  • MELSERVO MR-J3 Series

  • MELSERVO MR-J2S Series

  • Q Series Motion Controllers

  • L Series Motion Controllers

  • iQ-R Series Motion Controllers

  • Simple Motion Modules

  • SSCNet III/H Compatible Controllers


Common Mitsubishi Motion Controller Problems We Repair

Mitsubishi motion controllers are generally reliable, but like all electronic equipment, they can experience failures over time. We have extensive experience troubleshooting and repairing a wide array of issues.

  • No Output: The controller fails to send signals to the connected devices, resulting in a complete system shutdown.

  • Communication Errors: Issues with network connectivity or communication protocols, preventing the controller from communicating with other devices.

  • Overheating: Excessive heat buildup within the controller, potentially damaging internal components and leading to premature failure.

  • Power Supply Failures: Problems with the internal power supply, causing the controller to malfunction or shut down completely.

  • Encoder Faults: Errors related to the encoder feedback system, resulting in inaccurate positioning or motion control.

  • Drive Errors: Faults related to the servo drives connected to the motion controller, such as overcurrent or overvoltage conditions.

  • Parameter Corruption: Loss or corruption of stored parameters, leading to incorrect operation or system instability.

  • Blown Fuses: Indicates a short circuit or overload condition within the controller.

  • Thermal Overload: Controller shuts down due to excessive temperature, often caused by fan failure or blocked ventilation.

  • Software Glitches: Errors or bugs in the controller's firmware, causing unpredictable behavior or system crashes.


Our Mitsubishi Motion Controller Repair Process

Roc Industrial LLC follows a meticulous repair process to ensure the highest quality and reliability in our Mitsubishi motion controller repairs:

  1. Free Evaluation and Quote: We begin with a thorough evaluation of your faulty Mitsubishi motion controller. This includes a visual inspection and preliminary testing 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 clear and concise shipping instructions to ensure your Mitsubishi motion controller arrives safely at our repair facility. We can also arrange for expedited shipping if needed.

  3. Diagnosis Using Specialized Test Equipment: Upon arrival, our skilled technicians conduct a comprehensive diagnosis using specialized test equipment. This allows us to pinpoint the exact components that are failing or malfunctioning. We utilize advanced diagnostic tools to simulate real-world operating conditions and identify intermittent issues.

  4. Component-Level Repair and Replacement: We perform component-level repairs, replacing faulty components with high-quality replacements. Our extensive inventory of parts ensures that we can quickly address a wide range of issues. We use only industry-standard components and follow strict quality control procedures.

  5. Load Testing and Quality Checks: After the repairs are completed, we conduct rigorous load testing to ensure the Mitsubishi motion controller performs flawlessly under various operating conditions. We simulate real-world scenarios to verify its functionality and stability. Our quality checks include thorough inspections and performance evaluations to guarantee the highest level of reliability.

  6. Warranty-Backed Return and Support: All our Mitsubishi motion controller repairs are backed by a comprehensive warranty. We stand behind our work and are committed to providing exceptional customer support. If you experience any issues after the repair, simply contact us, and we will promptly address your concerns.


Nationwide Repair Services

Roc Industrial LLC provides Mitsubishi motion controller repair services to customers nationwide. We understand that downtime can be costly, so we offer fast turnaround times and reliable service, no matter where you are located.


We serve customers in major metropolitan areas, including New York, Los Angeles, Chicago, Houston, and Dallas, as well as smaller cities and rural areas across the country. Our streamlined shipping process and efficient repair services ensure that your Mitsubishi motion controller is back in operation as quickly as possible. We offer various shipping options to meet your specific needs, including expedited shipping for urgent repairs.



Why Choose Roc Industrial LLC?
  • 30+ Years of Experience: With over three decades of experience in industrial electronic repair, we have the knowledge and expertise to handle even the most complex Mitsubishi motion controller repairs.

  • Warranty-Backed Repairs: All our repairs are backed by a comprehensive warranty, giving you peace of mind and assurance of quality.

  • Thousands of Parts in Stock: Our extensive inventory of parts allows us to quickly address a wide range of issues, minimizing downtime.

  • Fast Turnaround, Often Same-Day: We understand the importance of minimizing downtime, so 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: We are committed to providing exceptional customer support, with a dedicated team ready to assist you with any questions or concerns.

Don’t let a faulty Mitsubishi motion controller 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 Mitsubishi motion controller service needs.

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