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Heidenhain resolver diagnostics troubleshooting guide

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.

Heidenhain Resolver Repair Services by Roc Industrial LLC

Is your Heidenhain resolver malfunctioning, causing downtime and impacting your production? Roc Industrial LLC specializes in providing fast, reliable, and expert Heidenhain resolver repair services. Resolvers are critical components in many industrial applications, providing precise position feedback for motors and machinery. When they fail, it can bring your entire operation to a standstill. Roc Industrial LLC understands the urgency and offers comprehensive repair solutions to get you back up and running quickly. We combine decades of experience with state-of-the-art diagnostic and repair equipment to ensure the highest quality service. Trust Roc Industrial LLC as your trusted partner for all your Heidenhain resolver repair needs.



About Heidenhain Resolvers

Heidenhain is a globally recognized leader in precision measurement and control technology. Their resolvers are renowned for their accuracy, reliability, and robustness in demanding industrial environments. Heidenhain resolvers are used extensively in CNC machines, robotics, automation systems, and various other applications requiring precise angular position feedback. These resolvers are designed to withstand harsh conditions, including extreme temperatures, vibration, and contamination. However, even the most robust resolvers can fail over time due to wear and tear, electrical surges, or other unforeseen issues.


The Heidenhain resolver product line encompasses a wide range of models designed for diverse applications. From compact resolvers for small servo motors to high-resolution resolvers for precision CNC machines, Heidenhain offers solutions to meet virtually any need. Their resolvers are known for their high accuracy, reliability, and long service life. When a Heidenhain resolver fails, it's crucial to have it repaired by experienced technicians who understand the intricacies of these complex devices. Roc Industrial LLC has the expertise and resources to diagnose and repair Heidenhain resolvers to their original factory specifications.



Supported Models & Series

We repair a wide range of Heidenhain resolver models and series, including but not limited to:

  • ROD Series (ROD 426, ROD 436, ROD 456, ROD 466, ROD 486)

  • ERN Series (ERN 1387, ERN 1381, ERN 480, ERN 487)

  • EQN Series (EQN 1325, EQN 1337, EQN 425, EQN 431)

  • ROC Series (ROC 413, ROC 213)

  • Specific Resolver Types: Inductosyn Resolvers, Brushless Resolvers, Pancake Resolvers

  • Angle Encoders with Resolver Feedback

  • Heidenhain Motor Feedback Systems

  • Custom Heidenhain Resolver Solutions

  • Heidenhain Absolute Encoders with Resolver Interface


Common Heidenhain Resolver Problems We Repair

Heidenhain resolvers are built to last, but they can still experience problems that require professional repair. These issues can range from simple connection problems to complex internal failures. Recognizing these common problems can help you identify when your resolver needs service.

  • No Output Signal: The resolver fails to provide any position feedback to the control system.

  • Inaccurate Readings: The resolver provides incorrect or inconsistent position data, leading to errors in machine operation.

  • Signal Distortion: The output signal from the resolver is distorted or noisy, making it difficult for the control system to interpret.

  • Communication Errors: The resolver fails to communicate properly with the control system, resulting in error messages or system shutdowns.

  • Overheating: The resolver becomes excessively hot during operation, indicating a potential internal problem.

  • Encoder Faults: Resolver-based encoders report errors or failures.

  • Loose Connections: Physical connections within the resolver or to external wiring become loose or corroded.

  • Contamination: Dirt, oil, or other contaminants enter the resolver, causing damage or malfunction.

  • Worn Bearings: The bearings within the resolver become worn or damaged, leading to inaccurate readings or complete failure.

  • Damaged Windings: The windings within the resolver become damaged due to electrical surges, overheating, or physical stress.

  • Resolver Diagnostics Troubleshooting Guide Issues stemming from incorrect diagnostic procedures.


Our Heidenhain Resolver Repair Process

Roc Industrial LLC follows a rigorous and comprehensive repair process to ensure that your Heidenhain resolver is restored to its original factory specifications. Our experienced technicians use state-of-the-art equipment and proven techniques to diagnose and repair even the most complex resolver problems. Here's a step-by-step breakdown of our process:

  1. Free Evaluation and Quote: We start with a free evaluation of your Heidenhain resolver to determine the extent of the damage and the necessary repairs. We then provide you with a detailed quote outlining the cost of the repair.

  2. Shipping Instructions: Once you approve the quote, we provide you with detailed shipping instructions to ensure that your resolver arrives safely at our repair facility. We can also arrange for pickup if needed.

  3. Diagnosis Using Specialized Test Equipment: Upon arrival, our technicians conduct a thorough diagnosis of your resolver using specialized test equipment. This includes checking the windings, bearings, and other critical components to identify the root cause of the problem. We utilize advanced diagnostic tools to pinpoint even the most elusive issues.

  4. Component-Level Repair and Replacement: Once the problem has been identified, our technicians perform component-level repairs and replacements as needed. We use only high-quality replacement parts that meet or exceed the original factory specifications. Our technicians are skilled in soldering, wiring, and other precision repair techniques.

  5. Load Testing and Quality Checks: After the repairs have been completed, we conduct rigorous load testing and quality checks to ensure that your resolver is functioning properly. This includes testing the accuracy, resolution, and repeatability of the resolver. We simulate real-world operating conditions to ensure that the resolver can withstand the demands of your application.

  6. Warranty-Backed Return and Support: We stand behind our work with a comprehensive warranty. If you experience any problems with your repaired resolver, simply contact us, and we will take care of it. We also provide ongoing technical support to answer any questions you may have.


Nationwide Repair Services

Roc Industrial LLC provides Heidenhain resolver repair services to customers nationwide. Whether you're located in New York, Los Angeles, Chicago, Houston, or Dallas, we can help you get your resolvers back in operation quickly. We offer fast shipping options and quick turnaround times to minimize downtime. Our nationwide service network ensures that you can access our expert repair services no matter where you are located. We understand the importance of minimizing downtime, and we are committed to providing fast and efficient repair services to all of our customers.



Why Choose Roc Industrial LLC?
  • 30+ Years of Experience: Roc Industrial LLC has over 30 years of experience in industrial electronic repair.

  • Warranty-Backed Repairs: We stand behind our work with a comprehensive warranty.

  • Thousands of Parts in Stock: We have a large inventory of replacement parts to minimize turnaround time.

  • Fast Turnaround, Often Same-Day: We understand the importance of minimizing downtime and offer fast turnaround times, often same-day service.

  • ISO-Certified Repair Processes: Our repair processes are ISO-certified to ensure the highest quality standards.

  • Exceptional Customer Support: We provide exceptional customer support to answer any questions you may have.

Don't let a faulty Heidenhain resolver slow down your operations. Contact Roc Industrial LLC today for a free evaluation and fast, reliable Heidenhain resolver repair.

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