Product Description
The Mitsubishi MR-J4-DU55KB4-RJ is a high-performance, reliable 55 kW AC servo drive with a 143 A maximum current, designed for demanding 3-phase industrial applications requiring 380-480 Vac (400V class). It features SSCNET III/H communication, safety unit compatibility, converter-supplied power, a 0 to +55C operating temperature range, and IP20 protection for controlled environments.
Is Your Device Showing These Signs?
Mitsubishi MR-J4-DU55KB4-RJ servo amplifiers commonly exhibit issues such as overcurrent faults stemming from shorted motor windings or damaged IGBTs. Drive instability and oscillation are traced to incorrect gain tuning or resolver signal degradation. Communication errors on the RJ45 interface arise from damaged cables, faulty network configuration, or a defective network interface card. Overheating is often caused by a malfunctioning cooling fan or obstructed heat sink. Parameter corruption necessitates a complete memory reset and parameter re-entry.
Technical specifications
The Mitsubishi MR-J4-DU55KB4-RJ is a 55 kW AC servo drive for 3-phase 380-480 Vac industrial applications. It offers SSCNET III/H communication, safety unit compatibility, converter-supplied power, a 0 to +55C operating temperature range, and IP20 protection.
Our Repair Process for the
MR-J4-DU55KB4-RJ
Our repair process for Mitsubishi MR-J4-DU55KB4-RJ servo amplifiers begins with a thorough diagnostic evaluation to pinpoint the root cause of the failure, addressing common issues such as overcurrent faults by inspecting motor windings and IGBTs, drive instability through gain tuning and resolver signal analysis, communication errors via RJ45 interface checks and network configuration verification, overheating by examining cooling fans and heat sinks, and parameter corruption through memory resets and parameter re-entry; each component is meticulously tested and replaced or repaired as needed, followed by rigorous testing under load to ensure optimal performance and adherence to factory 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.
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