Product Description
The Mitsubishi Electric QX82-S1, a 24V DC input module with 64 I/O pins, is a MELSEC-Q series component designed for industrial automation, providing seamless integration between external digital devices (like sensors and switches) and a PLC-based control system via connector-based wiring. Its applications span manufacturing, process control, and robotics, enabling machine control, parameter monitoring, and robot-environment interaction.
Is Your Device Showing These Signs?
The Mitsubishi QX82S1 commonly experiences issues related to blown output transistors, often resulting in a failure to switch connected loads. Diagnose this by checking transistor continuity with a multimeter. Corrosion on the terminal block and internal PCB traces interrupts signal integrity, causing intermittent operation or complete module failure. Address this with thorough cleaning and trace repair. Power supply capacitor degradation leads to voltage instability, affecting the module's ability to reliably activate outputs. Replace these capacitors to restore stable operation. Firmware corruption, though less frequent, necessitates reprogramming the module to factory settings to resolve erratic behavior.
Technical specifications
The Mitsubishi Electric QX82-S1 is a 24V DC input module with 64 I/O pins for MELSEC-Q series PLCs, used in industrial automation for connecting digital devices to a control system in manufacturing, process control, and robotics.
Our Repair Process for the
QX82S1
Our repair process for the Mitsubishi QX82S1 begins with diagnosing blown output transistors by checking transistor continuity using a multimeter. We then address corrosion on the terminal block and internal PCB traces through thorough cleaning and trace repair to restore signal integrity. Next, we replace degraded power supply capacitors to ensure stable voltage and reliable output activation. Finally, in cases of erratic behavior, we reprogram the module to factory settings to correct any firmware corruption.
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.
Buying Options
To receive a quote within 2 hours, please provide us with the details of your requirements. Our team will promptly review your request and send you a custom offer.
Ships from Rochester, NY