Product Description
The Mitsubishi MR-J4-500 b is a high-performance, single-axis servo amplifier with a 5 kW output, 28 A current, and SSCNET III/H interface, designed for precise control of servo motors in demanding industrial applications.
Is Your Device Showing These Signs?
The Mitsubishi MR-J4-500B servo drive commonly experiences issues such as overcurrent faults stemming from shorted motor windings or incorrect wiring, necessitating thorough inspection and replacement of damaged components. Parameter corruption within the drive's memory leads to erratic motor behavior, requiring parameter verification and reprogramming using MR Configurator2 software. Communication errors on the CC-Link IE Field network arise from faulty Ethernet cables, incorrect IP address configurations, or network card failures, demanding cable testing, IP address reconfiguration, and network interface card replacement. Overheating problems result from inadequate cooling, excessive load, or a malfunctioning cooling fan, prompting fan replacement, load reduction, and improved ventilation. Finally, alarm code occurrences, such as E6, E7, or E9, indicate specific hardware or software failures, mandating troubleshooting based on the Mitsubishi Electric documentation and component-level repair.
Technical specifications
Mitsubishi MR-J4-500B: amplificador servo de alto rendimiento (5 kW, 28 A) para control preciso de servomotores en aplicaciones industriales exigentes, con interfaz SSCNET III/H.
Our Repair Process for the
MR-J4-500B
Our repair process for the Mitsubishi MR-J4-500B servo drive begins with a comprehensive evaluation to pinpoint the root cause of the malfunction. Overcurrent faults require immediate inspection of motor windings and wiring, with replacement of any shorted components. Parameter corruption necessitates verification and reprogramming using MR Configurator2 software to restore proper motor function. Communication errors on the CC-Link IE Field network demand thorough testing of Ethernet cables, IP address reconfiguration, and replacement of faulty network interface cards. Overheating issues are addressed by replacing the cooling fan, reducing the load, and improving ventilation to ensure optimal operating temperature. Alarm codes are systematically resolved through troubleshooting based on Mitsubishi Electric documentation, culminating in component-level repair as needed to rectify hardware or software failures.
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