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Delta servo motor 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.

Delta Servo Motor Repair Services by Roc Industrial LLC

Is your Delta servo motor malfunctioning and causing downtime? Roc Industrial LLC specializes in providing fast, reliable, and expert Delta servo motor repair services. We understand the critical role these motors play in your operations, and our goal is to get you back up and running as quickly as possible. With decades of experience, state-of-the-art diagnostic equipment, and a commitment to quality, Roc Industrial LLC is your trusted partner for all your Delta servo motor repair needs.



About Delta Servo Motors

Delta Electronics is a global leader in power management and automation solutions, and their servo motors are renowned for their precision, reliability, and performance. Delta servo motors are integral components in a wide range of industrial applications, including CNC machinery, robotics, packaging equipment, and automated assembly lines. Known for their advanced control algorithms and robust design, Delta servo motors provide precise motion control, enhancing productivity and efficiency in demanding industrial environments. Their product line includes a variety of models designed to meet diverse application requirements, from compact, low-inertia motors to high-torque, high-performance units.


The widespread adoption of Delta servo motors across various industries underscores their reputation for quality and dependability. However, like all electronic and mechanical components, servo motors are subject to wear and tear, and can eventually experience failures. When this happens, it's crucial to have a reliable repair service provider that understands the intricacies of Delta servo motor technology. Roc Industrial LLC possesses the expertise and resources necessary to diagnose and repair a wide range of Delta servo motor issues, ensuring minimal downtime and maximum operational efficiency for our clients.



Supported Models & Series

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

  • ASD-A2 Series

  • ASD-B2 Series

  • ASD-A3 Series

  • ASD-M Series

  • ECMA Series (e.g., ECMA-C20401ES, ECMA-C20602ES)

  • ASDA-MS Series

  • ASDA-AB Series

  • ASDA-F Series

  • Various Frame Sizes (40mm to 220mm)

  • Power Ratings from 50W to 7.5kW

  • Incremental and Absolute Encoders

This list is not exhaustive. If you have a Delta servo motor model not listed, please contact us. Roc Industrial LLC has the capabilities to repair a vast array of Delta servo motor products.



Common Delta Servo Motor Problems We Repair

Delta servo motors, while reliable, can experience various issues over time. These problems can range from simple component failures to more complex control system malfunctions. Here are some common problems we address:

  • No Output/Motor Not Running: This can be due to a faulty power supply, damaged motor windings, or issues with the drive circuitry.

  • Overheating: Excessive heat can indicate overloading, insufficient cooling, or internal component failures.

  • Communication Errors: Problems with the communication interface (e.g., RS-485, EtherCAT) can prevent the motor from receiving commands.

  • Encoder Faults: Encoder issues can lead to inaccurate positioning or complete motor failure. This includes quadrature signal errors, index pulse problems, and complete encoder failure.

  • Blown Fuses: Repeatedly blown fuses often indicate a short circuit or overcurrent condition within the motor or drive.

  • Excessive Vibration/Noise: Unusual vibrations or noises can suggest bearing damage, imbalance, or mechanical wear.

  • Positioning Errors: Inaccurate positioning can result from encoder problems, control loop instability, or mechanical backlash.

  • Drive Fault Codes: Delta servo drives often display fault codes that indicate specific problems. We are experienced in diagnosing and resolving these faults.

  • Brake Malfunctions: Issues with the holding brake can prevent the motor from holding its position when stopped.

  • Torque Fluctuations: Inconsistent torque output can be caused by damaged windings, control system problems, or mechanical issues.

  • Moisture Contamination: Water or other contaminants can damage the motor windings, bearings, and electronic components.

  • Insulation Breakdown: Deterioration of the insulation on the motor windings can lead to short circuits and motor failure.


Our Delta Servo Motor Repair Process

Roc Industrial LLC follows a meticulous and thorough repair process to ensure the highest quality and reliability of our Delta servo motor repairs:

  1. Free Evaluation and Quote: Contact us with details about your Delta servo motor issue. 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 provide clear and concise shipping instructions to ensure your motor arrives safely at our repair facility. We can also arrange for pickup in certain areas.

  3. Diagnosis Using Specialized Test Equipment: Our experienced technicians utilize advanced diagnostic equipment to pinpoint the root cause of the problem. This includes testing the motor windings, encoder, feedback devices, and drive circuitry. We use oscilloscopes, signal generators, and specialized Delta servo motor testing software to accurately assess the motor's condition.

  4. Component-Level Repair and Replacement: We perform component-level repairs, replacing faulty components with high-quality replacements. This includes replacing damaged windings, encoders, bearings, and electronic components. We source our parts from reputable suppliers to ensure the longevity and reliability of our repairs.

  5. Load Testing and Quality Checks: After the repair is complete, we subject the motor to rigorous load testing to verify its performance under real-world conditions. We monitor parameters such as torque, speed, and current draw to ensure the motor meets or exceeds original specifications. Our quality control process includes vibration analysis, temperature monitoring, and visual inspections.

  6. Warranty-Backed Return and Support: We stand behind our work with a comprehensive warranty. If you experience any issues after the repair, we will provide prompt and effective support. We carefully package the repaired motor to prevent damage during shipping and provide tracking information so you can monitor its progress.


Nationwide Repair Services

Roc Industrial LLC provides Delta servo motor repair services to customers nationwide. Whether you are located in New York, Los Angeles, Chicago, Houston, Dallas, or any other city across the United States, we can help. We offer fast shipping options and quick turnaround times to minimize downtime and get your equipment back in operation as soon as possible.


We understand the urgency of industrial repairs and strive to provide the fastest possible service without compromising quality. Our streamlined repair process and efficient logistics ensure that your Delta servo motor is repaired and returned to you quickly and efficiently, no matter where you are located.



Why Choose Roc Industrial LLC?
  • 30+ Years of Experience: With over three decades of experience in industrial electronics repair, we have the knowledge and expertise to handle even the most complex Delta servo motor repairs.

  • Warranty-Backed Repairs: We stand behind our work with a comprehensive warranty, giving you peace of mind and assurance of quality.

  • Thousands of Parts in Stock: Our extensive inventory of Delta servo motor parts allows us to expedite repairs and minimize downtime.

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

  • ISO-Certified Repair Processes: Our ISO-certified repair processes ensure consistent quality and adherence to industry best practices.

  • 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 Delta servo motor slow down your operations. Contact Roc Industrial LLC today for a free evaluation and fast, reliable repair. We are committed to providing the highest quality Delta servo motor repair services to keep your business running smoothly.

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