Product Description
The Mitsubishi MDS-D-SVJ3-03 servo drive delivers precise, real-time control for dynamic applications, featuring air-cooling, a 200-230V AC power supply, 3A continuous current, 300W output, a 0-40C operating range, and built-in over-voltage, under-voltage, over-current, and thermal protection. Weighing 2.5kg and measuring 140x120x260mm, it supports incremental and absolute encoders and offers RS-232/RS-485 communication.
Is Your Device Showing These Signs?
The Mitsubishi MDS-D-SVJ3-03 servo drive commonly experiences issues stemming from capacitor degradation within the power supply, resulting in over-voltage alarms and operational failure. Troubleshooting often reveals IGBT failures in the inverter section, leading to drive trips and motor control problems. Encoder feedback errors, caused by faulty encoder cables or resolver issues, disrupt accurate positioning and velocity control. Overheating due to inadequate cooling or a malfunctioning fan is a frequent cause of component stress and eventual drive failure. Communication errors on the CC-Link interface also prevent proper integration with the CNC controller.
Technical specifications
The Mitsubishi MDS-D-SVJ3-03 servo drive provides precise control with features like air-cooling, 200-230V AC power, 3A current, 300W output, 0-40C operating range, and comprehensive protection. It weighs 2.5kg, measures 140x120x260mm, supports incremental/absolute encoders, and uses RS-232/RS-485 communication.
Our Repair Process for the
MDS-D-SVJ3-03
Our repair process for the Mitsubishi MDS-D-SVJ3-03 servo drive begins with a comprehensive evaluation to pinpoint the root cause of failure, focusing on common issues such as capacitor degradation in the power supply, IGBT failures in the inverter section, encoder feedback errors, overheating, and CC-Link communication problems. We replace all degraded capacitors in the power supply to prevent over-voltage alarms and operational failures. All faulty IGBTs in the inverter are replaced to eliminate drive trips and motor control problems. Encoder cables are inspected and replaced if necessary, and resolver issues are addressed to ensure accurate positioning and velocity control. Cooling systems are thoroughly inspected, and malfunctioning fans are replaced to prevent overheating and component stress. Finally, CC-Link interface issues are resolved to restore proper integration with the CNC controller, followed by rigorous testing to guarantee optimal performance and reliability.
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