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Hitachi PLC power supply rebuild – CNC machining

ISO 9001:2015 Certified Quality

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

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 Power Supply Repair Services

Is your Hitachi PLC power supply failing and causing downtime? Roc Industrial LLC specializes in fast, reliable Hitachi PLC power supply repair services to get your automation systems back online quickly. We understand the critical role these power supplies play in your operations. With our extensive experience, state-of-the-art equipment, and commitment to quality, Roc Industrial LLC is your trusted partner for all your Hitachi PLC power supply repair needs.



About Hitachi PLCs and Power Supplies

Hitachi is a globally recognized leader in industrial automation, and their Programmable Logic Controllers (PLCs) are widely used in various industries for controlling complex processes. Hitachi PLCs are known for their reliability, performance, and versatility. A crucial component of any PLC system is the power supply, which provides the necessary voltage and current to operate the PLC's CPU, I/O modules, and communication interfaces. A faulty power supply can lead to unpredictable PLC behavior, system shutdowns, and significant production losses.


Hitachi PLC power supplies are designed to be robust and dependable, but they are still susceptible to failures due to factors such as age, environmental conditions, voltage fluctuations, and component degradation. When a Hitachi PLC power supply fails, it's essential to have it repaired quickly and effectively to minimize downtime and prevent further damage to the PLC system. Roc Industrial LLC offers comprehensive repair services for a wide range of Hitachi PLC power supplies, ensuring that your automation systems operate at peak performance.



Supported Models & Series

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

  • H Series Power Supplies

  • EHV Series Power Supplies

  • Micro-EHV Series Power Supplies

  • EH-150 Series Power Supplies

  • EH-LE Series Power Supplies

  • Various Input Voltage Models (100-240VAC, 24VDC)

  • Output Current Variations (e.g., 5A, 10A, 20A)

  • Specific Models: EH-PSU2405, EH-PSU2410, H-PSU1005

  • Legacy Hitachi PLC Power Supplies (Contact us for older models)


Common Hitachi PLC Power Supply Problems We Repair

Hitachi PLC power supplies can experience a variety of issues that can disrupt your operations. Our experienced technicians are equipped to diagnose and repair a wide range of common failures.

  • No Output Voltage: The power supply fails to provide any output voltage, preventing the PLC from powering on.

  • Low Output Voltage: The output voltage is lower than the specified value, causing erratic PLC behavior.

  • Overvoltage: The output voltage exceeds the specified value, potentially damaging the PLC and connected devices.

  • Unstable Output Voltage: The output voltage fluctuates, leading to unreliable PLC operation.

  • Blown Fuses: Repeated fuse failures indicate a more serious underlying problem within the power supply.

  • Overheating: The power supply overheats, potentially causing component damage and premature failure.

  • Communication Errors: The power supply fails to communicate properly with the PLC, resulting in system errors.

  • Component Failure: Individual components within the power supply, such as capacitors, resistors, or diodes, fail.

  • Power Supply Not Turning On: The power supply does not power on when voltage is applied.

  • Audible Noise: Unusual buzzing or humming sounds emanating from the power supply.


Our Hitachi PLC Power Supply Repair Process

Roc Industrial LLC follows a meticulous and comprehensive repair process to ensure the highest quality repairs for your Hitachi PLC power supplies. Our process is designed to identify the root cause of the failure, repair or replace faulty components, and thoroughly test the power supply to ensure it meets or exceeds original performance specifications.

  1. Free Evaluation and Quote: We offer a free evaluation of your faulty Hitachi PLC power supply. Simply contact us to arrange for shipping or drop-off. Our technicians will thoroughly inspect the unit and provide you with a detailed quote for the repair.

  2. Shipping Instructions: Once you approve the quote, we will provide you with detailed shipping instructions to ensure the safe transport of your power supply to our repair facility. We recommend using appropriate packaging materials to prevent damage during shipping.

  3. Diagnosis Using Specialized Test Equipment: Upon receiving your power supply, our experienced technicians will use specialized test equipment to diagnose the root cause of the failure. We utilize advanced diagnostic techniques to identify faulty components and assess the overall condition of the unit.

  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 component identification, ensuring precise and reliable repairs. We source our components from reputable suppliers to guarantee the quality and longevity of our repairs.

  5. Load Testing and Quality Checks: After the repair is complete, we subject the power supply to rigorous load testing to ensure it performs within specified parameters. We simulate real-world operating conditions to verify the stability and reliability of the unit. Our quality control process includes thorough inspections and functional tests to ensure that the power supply meets our high standards.

  6. Warranty-Backed Return and Support: We stand behind our repairs with a comprehensive warranty. If you experience any issues with the repaired power supply within the warranty period, simply contact us for assistance. We are committed to providing exceptional customer support and ensuring your complete satisfaction.


Nationwide Repair Services

Roc Industrial LLC provides Hitachi PLC power supply repair services to customers nationwide. We understand that downtime can be costly, so we offer fast turnaround times and convenient shipping options to minimize disruption to your operations. Whether you are located in New York, Los Angeles, Chicago, Houston, Dallas, or any other city in the United States, we can provide you with reliable and efficient repair services.


We offer expedited shipping options to ensure that your power supply is returned to you as quickly as possible. Our team is experienced in handling delicate electronic equipment, and we take extra precautions to protect your power supply during shipping. We also provide tracking information so you can monitor the progress of your shipment.



Why Choose Roc Industrial LLC?

When you choose Roc Industrial LLC for your Hitachi PLC power supply repair needs, you can be confident that you are working with a trusted and experienced provider. We are committed to providing our customers with the highest quality repairs, fast turnaround times, and exceptional customer service.

  • 30+ Years of Experience: We have over 30 years of experience in repairing industrial electronic equipment, including Hitachi PLC power supplies.

  • Warranty-Backed Repairs: We stand behind our repairs with a comprehensive warranty, giving you 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 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 that we adhere to 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 power supply slow down your operations. Contact Roc Industrial LLC today for a free evaluation and fast, reliable Hitachi PLC power supply repair.

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