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Servo drive DC bus undervoltage repair

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.

Allen-Bradley Servo Drive Repair Services by Roc Industrial LLC

Is your Allen-Bradley servo drive malfunctioning? Roc Industrial LLC specializes in comprehensive Allen-Bradley servo drive repair services, ensuring your critical equipment is back online quickly and reliably. We understand the importance of minimizing downtime, and our team of experienced technicians is dedicated to providing fast, efficient, and cost-effective solutions. With decades of experience and a commitment to quality, Roc Industrial LLC is your trusted partner for Allen-Bradley servo drive repair.



About Allen-Bradley Servo Drives

Allen-Bradley, a brand of Rockwell Automation, is a global leader in industrial automation, renowned for its high-performance and reliable servo drives. Allen-Bradley servo drives are integral components in a wide range of applications, including CNC machines, robotics, packaging equipment, and other automated systems. These drives provide precise motion control, contributing to increased productivity and efficiency in manufacturing and industrial processes. Their reputation for durability and advanced features has made them a preferred choice for businesses worldwide.


The Allen-Bradley servo drive family encompasses a diverse range of models and series, each designed to meet specific application requirements. From compact, low-power drives to high-performance, multi-axis systems, Allen-Bradley offers solutions for virtually any motion control need. Their commitment to innovation and continuous improvement ensures that their servo drives remain at the forefront of automation technology. When these critical components fail, Roc Industrial LLC provides expert repair services to get your operations back on track.



Supported Models & Series

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

  • Kinetix 5500 Series

  • Kinetix 5700 Series

  • Kinetix 6000 Series (e.g., Kinetix 6200, Kinetix 6500)

  • Kinetix 7000 Series

  • Ultra 3000 Series

  • Ultra 5000 Series

  • Bulletin 1394 Servo Controllers

  • MP-Series Servo Motors (often paired with the drives above)

  • VP-Series Servo Motors

  • 8720MC Series


Common Allen-Bradley Servo Drive Problems We Repair

Allen-Bradley servo drives, while robust, can experience various issues due to age, environmental factors, or operational stress. Our technicians are highly skilled in diagnosing and repairing a wide array of problems. We understand the urgency of these failures and strive to provide the fastest turnaround possible.

  • No Output: The drive fails to provide any power to the motor, preventing any motion.

  • Overvoltage Errors: The drive detects excessive voltage levels, triggering a fault and shutting down.

  • Undervoltage Errors: The drive detects insufficient voltage levels, triggering a fault and shutting down. This can be due to DC bus undervoltage.

  • Communication Errors: The drive loses communication with the controller, preventing proper operation.

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

  • Blown Fuses: Internal fuses blow due to power surges or component failures.

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

  • Motor Stalling: The motor fails to rotate or stops unexpectedly during operation.

  • Excessive Vibration: The motor exhibits unusual vibrations, indicating potential mechanical issues.

  • Current Overload: The drive detects excessive current draw, triggering a fault and shutting down.

  • Positioning Errors: Inaccurate positioning of the motor due to drive or encoder issues.

  • Drive Not Powering On: The drive fails to power on at all.

  • Internal Component Failure: Failure of internal components such as capacitors, resistors, or transistors.


Our Allen-Bradley Servo Drive Repair Process

Roc Industrial LLC follows a meticulous repair process to ensure the highest quality and reliability. Our goal is to provide a comprehensive solution that addresses the root cause of the problem and prevents future failures.

  1. Free Evaluation and Quote: We offer a free, no-obligation evaluation of your Allen-Bradley servo drive. Our technicians will assess the condition of the drive and provide a detailed quote for the repair.

  2. Shipping Instructions: Once you approve the quote, we will provide clear and concise shipping instructions to ensure your drive arrives safely at our repair facility. We can also arrange for expedited shipping if needed.

  3. Diagnosis Using Specialized Test Equipment: Our technicians use advanced diagnostic tools and equipment to pinpoint the exact cause of the failure. We simulate real-world operating conditions to thoroughly test the drive's functionality.

  4. Component-Level Repair and Replacement: We perform component-level repairs, replacing faulty components with high-quality replacements. We maintain a large inventory of parts to minimize turnaround time.

  5. Load Testing and Quality Checks: After the repair, we subject the drive to rigorous load testing to ensure it meets or exceeds original performance specifications. We perform thorough quality checks to verify the repair's integrity.

  6. Warranty-Backed Return and Support: All of our Allen-Bradley servo drive repairs are backed by a comprehensive warranty. We provide ongoing technical support to ensure your complete satisfaction.


Nationwide Repair Services

Roc Industrial LLC provides Allen-Bradley servo drive repair services to customers nationwide. Whether you are located in a major metropolitan area or a remote industrial site, we can help. We understand the importance of minimizing downtime, and we offer fast shipping options and quick turnaround times to get your equipment back online as quickly as possible.


We frequently serve customers in major metro areas such as New York, Los Angeles, Chicago, Houston, and Dallas. Our streamlined logistics and experienced team ensure that your Allen-Bradley servo drive repair is handled efficiently and professionally, regardless of your location. Contact us today to learn more about our nationwide repair services.



Why Choose Roc Industrial LLC?

When it comes to Allen-Bradley servo drive repair, Roc Industrial LLC offers a distinct advantage. Our commitment to quality, expertise, and customer satisfaction sets us apart from the competition.

  • 30+ Years of Experience: With over three decades of experience in industrial electronics repair, we have the knowledge and skills to handle even the most complex Allen-Bradley servo drive repairs.

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

  • Thousands of Parts in Stock: We maintain a large inventory of parts, minimizing turnaround time and ensuring that we can quickly complete your repair.

  • Fast Turnaround, Often Same-Day: We understand the importance of minimizing downtime, and we offer fast turnaround times, often providing 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 professionalism.

  • 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 Allen-Bradley servo drive slow down your operations. Contact Roc Industrial LLC today for a free evaluation and fast, reliable repair. We are your trusted partner for Allen-Bradley servo drive repair services.

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