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Hitachi servo drive exchange program for brake resistor failure

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.

Hitachi Servo Drive Repair Services by Roc Industrial LLC

Is your Hitachi servo drive malfunctioning? Roc Industrial LLC provides expert Hitachi servo drive repair services, ensuring your equipment is back up and running quickly and reliably. Servo drives are critical components in various industrial applications, controlling the precise movement of motors in machinery. When a Hitachi servo drive fails, it can bring your entire operation to a standstill. Roc Industrial LLC offers fast, reliable, and cost-effective repair solutions, leveraging our extensive expertise and state-of-the-art equipment. Trust Roc Industrial LLC as your trusted repair provider to minimize downtime and maximize productivity.



About Hitachi Servo Drives

Hitachi is a globally recognized brand known for its high-quality and innovative industrial automation solutions. Hitachi servo drives are integral components in a wide range of applications, including CNC machines, robotics, packaging equipment, and other automated systems. These drives are designed for precision, reliability, and high performance, making them a preferred choice for industries demanding accurate motion control.


Hitachi servo drives are renowned for their advanced features, such as real-time control, high-speed communication, and sophisticated diagnostic capabilities. They are built to withstand harsh industrial environments and provide consistent performance over extended periods. However, like any electronic equipment, Hitachi servo drives are susceptible to wear and tear, component failure, and other issues that can compromise their functionality. Roc Industrial LLC specializes in restoring these drives to their optimal condition.



Supported Models & Series

We repair a wide range of Hitachi servo drive models and series, including but not limited to:

  • Hitachi Servo Amplifier Series: BL Series, BX Series, CL Series, CX Series

  • Hitachi Servo Motor Series: KL Series, KM Series, P Series, T Series

  • Hitachi Inverter Series: SJ700 Series, WJ200 Series, X200 Series

  • Hitachi Advanced Servo Systems: HI-E Series, HI-S Series

  • Hitachi Legacy Servo Drives: Specific models from older generations (contact us for details)

  • Hitachi Vector Control Drives

  • Hitachi AC Servo Units


Common Hitachi Servo Drive Problems We Repair

Customers often experience a range of issues with their Hitachi servo drives. These problems can stem from various factors, including environmental conditions, power fluctuations, and component aging. Roc Industrial LLC is equipped to diagnose and repair a wide array of common and complex failures.

  • No Output: The servo drive fails to provide any power to the motor, preventing it from operating.

  • Overvoltage/Undervoltage Errors: The drive detects voltage levels outside the acceptable range, triggering a fault.

  • Communication Errors: The drive is unable to communicate with the controller or other devices in the system.

  • Overheating: The drive's internal temperature exceeds safe limits, leading to shutdown or component damage.

  • Blown Fuses: Internal fuses blow due to excessive current, indicating a potential short circuit or overload.

  • Encoder Faults: The encoder, which provides feedback on the motor's position, malfunctions, causing inaccurate control.

  • Brake Resistor Failure: The brake resistor, responsible for dissipating energy during deceleration, fails, leading to braking issues. This is a common issue we address with our Hitachi servo drive exchange program.

  • Positioning Errors: Inaccurate or inconsistent positioning of the motor.

  • Excessive Vibration: Unusual vibrations during operation, indicating mechanical or control issues.

  • Drive Not Initializing: The drive fails to power on or complete its startup sequence.


Our Hitachi Servo Drive Repair Process

Roc Industrial LLC follows a meticulous and comprehensive repair process to ensure the highest quality and reliability of our services. Our experienced technicians use advanced diagnostic tools and techniques to identify the root cause of the problem and implement effective solutions.

  1. Free Evaluation and Quote: We offer a free evaluation of your Hitachi servo drive to determine the extent of the damage and provide a detailed repair quote.

  2. Shipping Instructions: We provide clear and concise shipping instructions to ensure your servo drive arrives safely at our repair facility.

  3. Diagnosis Using Specialized Test Equipment: Our technicians use specialized test equipment to thoroughly diagnose the servo drive and identify all faulty components.

  4. Component-Level Repair and Replacement: We perform component-level repairs, replacing only the necessary parts with high-quality replacements. We also offer a Hitachi servo drive exchange program for common issues like brake resistor failure.

  5. Load Testing and Quality Checks: After the repair, we conduct rigorous load testing and quality checks to ensure the servo drive meets or exceeds original performance specifications.

  6. Warranty-Backed Return and Support: All our repairs are backed by a comprehensive warranty, providing you with peace of mind and ongoing support.


Nationwide Repair Services

Roc Industrial LLC provides Hitachi servo drive repair services to customers nationwide. Whether you are located in a major metropolitan area or a remote industrial site, we can help you get your equipment back up and running quickly. We serve customers in major metro areas such as New York, Los Angeles, Chicago, Houston, and Dallas, as well as countless other locations across the country.


We offer fast shipping options and quick turnaround times to minimize downtime and keep your operations running smoothly. Our efficient logistics and streamlined repair process ensure that your Hitachi servo drive is repaired and returned to you as quickly as possible.



Why Choose Roc Industrial LLC?

When it comes to Hitachi servo drive repair, Roc Industrial LLC stands out as a trusted and reliable provider. We offer a range of benefits that set us apart from the competition:

  • 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 Hitachi servo drive issues.

  • Warranty-Backed Repairs: All our repairs are backed by a comprehensive warranty, giving you confidence in the quality and reliability of our services.

  • Thousands of Parts in Stock: We maintain a large inventory of Hitachi servo drive components, enabling us to perform repairs quickly and efficiently.

  • Fast Turnaround, Often Same-Day: We understand the importance of minimizing downtime, and we strive to provide the fastest possible turnaround times, often offering same-day service for critical repairs.

  • ISO-Certified Repair Processes: Our repair processes are ISO-certified, ensuring that we adhere to the highest standards of quality and consistency.

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

  • Free Evaluations: We provide free, no-obligation evaluations to assess the condition of your Hitachi servo drives.

Don’t let a faulty Hitachi servo drive slow down your operations. Contact Roc Industrial LLC today for a free evaluation and fast, reliable repair. Our Hitachi servo drive exchange program can quickly resolve issues like brake resistor failure. We are committed to providing the highest quality repair services and exceptional customer support.

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