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Hitachi PLC CPU exchange program & testing

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 PLC CPU Repair Services by Roc Industrial LLC

Is your Hitachi PLC CPU malfunctioning and causing downtime? Roc Industrial LLC specializes in providing fast, reliable, and expert Hitachi PLC CPU repair services. We understand the critical role these CPUs play in your automation systems, and we are committed to getting them back up and running as quickly as possible. Our experienced technicians have the knowledge and tools to diagnose and repair a wide range of Hitachi PLC CPU issues. Trust Roc Industrial LLC to be your trusted repair provider, ensuring minimal disruption to your operations.



About Hitachi PLCs

Hitachi is a globally recognized leader in industrial automation, and their Programmable Logic Controllers (PLCs) are renowned for their reliability and performance. Hitachi PLCs are integral components in various industrial applications, including manufacturing, robotics, and process control. These PLCs are designed to provide robust and efficient control over complex automated systems. Hitachi PLCs are known for their advanced features, scalability, and ease of integration, making them a popular choice for businesses seeking to optimize their operations.


Hitachi PLC CPUs are the brains of these systems, responsible for executing the control logic and managing the input and output signals. A malfunctioning CPU can bring your entire operation to a standstill, leading to significant losses in productivity and revenue. That's why it's crucial to have a reliable repair partner like Roc Industrial LLC to quickly diagnose and resolve any issues with your Hitachi PLC CPUs. We understand the intricacies of these systems and offer comprehensive repair services to ensure your equipment operates at peak performance.



Supported Models & Series

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

  • H Series CPUs (e.g., H-051, H-150, H-250)

  • EHV Series CPUs (e.g., EHV-CPU05, EHV-CPU15, EHV-CPU30)

  • Micro-EHV Series CPUs (e.g., Micro-EHV CPU)

  • EH-150 Series CPUs

  • EH-A Series CPUs

  • Various Expansion Modules and Communication Modules

  • Legacy Hitachi PLC CPU Models (Contact us for specific models)


Common Hitachi PLC CPU Problems We Repair

Hitachi PLC CPUs, like any electronic component, can experience failures over time. These failures can manifest in various ways, disrupting your automation processes. We specialize in diagnosing and repairing a wide range of issues, ensuring your PLC CPU is back in operation quickly.

  • CPU Failure/No Power: The CPU fails to power on, preventing the PLC from operating.

  • Communication Errors: The CPU is unable to communicate with other modules or devices on the network.

  • Program Corruption: The PLC program becomes corrupted, leading to unpredictable behavior.

  • Memory Errors: The CPU experiences memory errors, causing the PLC to malfunction.

  • Input/Output (I/O) Failures: The CPU is unable to properly process input or output signals.

  • Overheating: The CPU overheats, leading to performance degradation or failure.

  • Blown Fuses: Internal fuses blow, preventing the CPU from operating.

  • Backplane Issues: Problems with the backplane connection affecting CPU functionality.

  • Real-Time Clock (RTC) Errors: Inaccurate or failing real-time clock functionality.

  • Power Supply Problems: Issues with the CPU's internal power supply.


Our Hitachi PLC CPU Repair Process

Roc Industrial LLC follows a meticulous and comprehensive repair process to ensure the highest quality repairs for your Hitachi PLC CPUs. Our goal is to quickly diagnose the problem, efficiently repair the unit, and thoroughly test it to ensure it meets or exceeds original performance specifications.

  1. Free Evaluation and Quote: Contact us with details about your faulty Hitachi PLC CPU. We offer a free evaluation to determine the extent of the damage and provide you with a detailed repair quote.

  2. Shipping Instructions: Once you approve the quote, we will provide you with clear shipping instructions to ensure your PLC CPU arrives safely at our repair facility. We recommend using appropriate packaging to prevent further damage during transit.

  3. Diagnosis Using Specialized Test Equipment: Our experienced technicians use state-of-the-art diagnostic equipment to pinpoint the root cause of the problem. We perform thorough testing to identify all faulty components and assess the overall condition of the CPU.

  4. Component-Level Repair and Replacement: We perform component-level repairs, replacing faulty components with high-quality replacements. Our technicians are skilled in soldering, desoldering, and other advanced repair techniques. We use only industry-standard components to ensure reliability and longevity.

  5. Load Testing and Quality Checks: After the repair is complete, we perform rigorous load testing to ensure the CPU operates correctly under various conditions. We conduct thorough quality checks to verify that all functions are working as expected.

  6. Warranty-Backed Return and Support: We stand behind our repairs with a comprehensive warranty. If you experience any issues with your repaired Hitachi PLC CPU within the warranty period, we will provide prompt and efficient support.


Nationwide Repair Services

Roc Industrial LLC provides Hitachi PLC CPU repair services to customers nationwide. We understand that downtime can be costly, so we offer fast turnaround times and reliable service to minimize disruption to your operations. 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 to ensure your PLC CPU arrives at our facility quickly. Our streamlined repair process allows us to diagnose and repair your unit efficiently, minimizing downtime. We are committed to providing exceptional service to customers across the country.



Why Choose Roc Industrial LLC?

When you choose Roc Industrial LLC for your Hitachi PLC CPU repair needs, you can be confident that you're working with a trusted and experienced partner. We are committed to providing the highest quality repairs and exceptional customer service.

  • 30+ Years of Experience: We have over 30 years of experience in industrial electronic repair, giving us the expertise to handle even the most complex Hitachi PLC CPU issues.

  • 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 parts, allowing us to quickly repair your PLC CPU and minimize 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 quality standards.

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

Don't let a faulty Hitachi PLC CPU slow down your operations. Contact Roc Industrial LLC today for a free evaluation and fast, reliable Hitachi PLC CPU repair. We are your trusted partner for all your industrial electronic repair needs. We also offer Hitachi PLC CPU exchange program & testing.

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