Product Description
The ABB NASM02S is a robust and reliable adapter module engineered for seamless integration within ABB's automation systems. This module facilitates secure and efficient communication between various devices and the central control unit, ensuring optimal performance and data exchange. Its compact design allows for easy installation in existing setups, minimizing downtime and maximizing operational efficiency. The NASM02S is built with high-quality components to withstand demanding industrial environments, guaranteeing long-term durability and consistent operation. It is an essential component for expanding and maintaining ABB automation systems, providing a dependable solution for complex control applications.
Is Your Device Showing These Signs?
ABB NASM02S units commonly exhibit failures in the electrolytic capacitors within the power supply, leading to reduced output voltage and system instability. Encoder feedback issues arise from damaged encoder discs or faulty read heads, causing inaccurate positioning and motion control errors. Communication failures stem from corrupted firmware or damaged communication ports, disrupting data transmission and remote control capabilities. Overheating of the IGBT modules results from inadequate cooling or excessive load, triggering thermal shutdowns and potential component damage. Resolving these issues involves replacing faulty capacitors, recalibrating or replacing the encoder, reflashing firmware or repairing communication ports, and improving thermal management through heatsink maintenance or fan replacement.
Technical specifications
The ABB NASM02S is a compact, high-performance resolver-to-digital converter module designed for precise angular position and velocity feedback in demanding industrial automation applications. This module accepts signals from a standard resolver and transforms them into a digital format suitable for direct connection to a PLC, CNC, or other control system. It features a 12-bit resolution, providing accurate position data with minimal latency, and supports a wide range of resolver excitation frequencies. The NASM02S incorporates advanced error compensation algorithms to mitigate the effects of resolver imperfections and temperature variations, ensuring reliable operation in harsh environments. Integrated diagnostic functions continuously monitor the resolver signal and module health, providing real-time status information for proactive maintenance. The module is designed for DIN rail mounting and operates on a 24 VDC power supply, simplifying installation and integration into existing control architectures.
Our Repair Process for the
NASM02S
Our repair process for ABB NASM02S units begins with a comprehensive diagnostic assessment to pinpoint the root cause of the failure, focusing on common issues such as electrolytic capacitor degradation, encoder feedback malfunctions, communication failures, and IGBT module overheating. Upon identifying the problem, we proceed with component-level repairs, which includes replacing faulty capacitors with high-quality replacements, recalibrating or replacing the encoder assembly, reflashing firmware or repairing damaged communication ports, and enhancing thermal management by cleaning heatsinks or replacing cooling fans. Rigorous testing and quality control measures are implemented throughout the repair process to ensure optimal performance and reliability of the unit. The repaired unit undergoes a final functional test under simulated operating conditions to verify that all issues are resolved and that the unit meets or exceeds original performance specifications.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.

Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.

















