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Lenze inverter troubleshooting & 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.

Lenze Inverter Repair Services by Roc Industrial LLC

Is your Lenze inverter malfunctioning and causing downtime? Roc Industrial LLC specializes in fast, reliable Lenze inverter repair services to get your equipment back up and running quickly. We understand the critical role Lenze inverters play in various industrial applications, and our team of experienced technicians is dedicated to providing top-notch repair and testing services. With our expertise, state-of-the-art equipment, and commitment to quality, you can trust Roc Industrial LLC to deliver exceptional results.



About Lenze Inverters

Lenze is a globally recognized leader in drive and automation technology, renowned for its innovative and high-performance inverters. Lenze inverters are designed to control the speed and torque of electric motors, providing precise and efficient operation in a wide range of industrial applications. These inverters are known for their robust construction, advanced features, and reliable performance, making them a popular choice for demanding environments.


Lenze inverters are widely used in industries such as manufacturing, packaging, material handling, and renewable energy. They are commonly found in CNC machines, robotics systems, conveyor systems, pumps, fans, and other critical equipment. Their ability to precisely control motor speed and torque makes them essential components in modern automation systems, contributing to increased productivity, energy efficiency, and overall operational performance. Lenze's commitment to quality and innovation has solidified its reputation as a trusted provider of drive and automation solutions worldwide.



Supported Models & Series

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

  • Lenze i500 Series: i510, i520, i550

  • Lenze 8200 Vector Series: 8200 Vector E, 8200 Vector C

  • Lenze 9400 Series: 9400 Servo Inverters, 9400 HighLine, 9400 TopLine

  • Lenze ECS Series: ECS Servo Inverters

  • Lenze SMVector Series: SMVector NEMA 1, SMVector NEMA 4X

  • Lenze AC Tech Series: AC Tech SCF Series, AC Tech MC Series

  • Lenze SE Series: SE Inverters

  • Lenze g500 Series: g500 Gearboxes combined with Inverters

  • Legacy Lenze Inverters: Many older and discontinued models are also supported. Contact us with your specific model number.


Common Lenze Inverter Problems We Repair

Lenze inverters, like any electronic equipment, can experience failures over time. We specialize in diagnosing and repairing a wide array of issues. Here are some common problems we address:

  • No Output Voltage: The inverter fails to provide the necessary output voltage to the motor.

  • Overvoltage Faults: The inverter detects an overvoltage condition, causing it to shut down.

  • Overcurrent Faults: The inverter detects an overcurrent condition, often due to a motor issue or short circuit.

  • Communication Errors: The inverter is unable to communicate with the control system or other devices.

  • Overheating: The inverter overheats, leading to reduced performance or complete failure.

  • Blown Fuses: Fuses within the inverter blow, indicating a fault condition.

  • Encoder Faults: Issues with the encoder feedback signal, affecting motor control.

  • Drive Not Ready: The inverter fails to initialize or enter a ready state.

  • Parameter Errors: Incorrect or corrupted parameter settings.

  • IGBT Failures: Failure of the Insulated Gate Bipolar Transistors (IGBTs) which are critical for power switching.

  • DC Bus Problems: Fluctuations or instability in the DC bus voltage.

  • Display Issues: Problems with the inverter's display screen, making it difficult to monitor parameters.

  • Ground Faults: Detection of current leakage to ground, indicating insulation breakdown.

  • Software Corruption: Issues with the inverter's firmware or software, leading to operational problems.


Our Lenze Inverter Repair Process

Roc Industrial LLC follows a comprehensive and meticulous repair process to ensure the highest quality Lenze inverter repairs:

  1. Free Evaluation and Quote: We offer a free evaluation of your Lenze inverter to determine the extent of the damage and provide you with a detailed repair quote. There are no hidden fees or obligations.

  2. Shipping Instructions: Once you approve the quote, we provide clear and concise shipping instructions to ensure your inverter arrives safely at our repair facility. We can also arrange for pickup in certain areas.

  3. Diagnosis Using Specialized Test Equipment: Our experienced technicians use advanced diagnostic tools and techniques to pinpoint the root cause of the inverter's failure. We thoroughly inspect all components and circuits to identify any issues.

  4. Component-Level Repair and Replacement: We perform component-level repairs, replacing faulty components with high-quality replacements. We source our parts from trusted suppliers to ensure reliability and performance.

  5. Load Testing and Quality Checks: After the repair, we subject the inverter to rigorous load testing to verify its performance under real-world conditions. We also conduct thorough quality checks to ensure it meets our strict standards.

  6. Warranty-Backed Return and Support: We stand behind our repairs with a comprehensive warranty. If you experience any issues after the repair, simply contact us, and we will resolve them promptly. We also provide ongoing technical support to assist you with any questions or concerns.


Nationwide Repair Services

Roc Industrial LLC provides Lenze inverter repair services to customers nationwide. Whether you are 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 and quick turnaround times to minimize downtime and get your equipment back in operation as soon as possible.


We understand the importance of minimizing downtime in industrial settings. That's why we prioritize speed and efficiency in our repair process. Our goal is to provide you with the fastest possible turnaround time without compromising on quality. We also offer expedited repair services for critical situations.



Why Choose Roc Industrial LLC?

When it comes to Lenze inverter repair, Roc Industrial LLC is the clear choice. Here's why:

  • 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 Lenze inverter 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 Lenze inverter parts, allowing us to complete repairs quickly and efficiently.

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

  • ISO-Certified Repair Processes: Our repair processes are ISO-certified, ensuring the highest standards of quality and consistency.

  • Exceptional Customer Support: We are committed to providing exceptional customer support, and our friendly and knowledgeable team is always available to assist you.

Don't let a faulty Lenze inverter slow down your operations. Contact Roc Industrial LLC today for a free evaluation and fast, reliable Lenze inverter repair. We are your trusted partner for all your Lenze inverter troubleshooting & testing needs.

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