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Mitsubishi MR-J4-200B-RJ020

Mitsubishi

Drives

MELSERVO MR-J4

MR-J4-200B-RJ020

ISO 9001:2015 Certified Quality

Our certified process ensures consistent quality and reliable repairs every time.

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2-Year Repair Warranty

We stand behind our repairs with an extensive 2-year warranty on parts and labor for your peace of mind.

Fast Turnaround Time

Our efficient process and large parts inventory help minimize your operational downtime.

Expert Component-Level Repair

We find and replace individual failed components, offering a more affordable and effective repair than full replacement.

Free, No-Obligation Quote

Send us your item for a free evaluation and receive a detailed repair quote with no commitment required.

Product Description

The Mitsubishi MR-J4-200B-RJ020 is a compact, high-performance 2.0 kW servo drive from the MELSERVO MR-J4 series, operating on 200-230V three-phase AC with an 8.0 A output. It achieves precise motion control using vector and position control, reaching speeds up to 3000 RPM (motor-dependent), and offers RS-422/485 and SSCNET III connectivity. Its absolute encoder enables 0.01 arc-min positioning accuracy (motor-dependent), while forced air cooling maintains operation between 0C and 55C. Safety features include STO and Safe Stop 1. Dimensions are approximately 50x150x160 mm, and it weighs 1.5 kg.

Is Your Device Showing These Signs?

The Mitsubishi MR-J4-200B-RJ020 servo drive commonly experiences issues such as overcurrent faults stemming from shorted motor windings or incorrect wiring, necessitating insulation testing and cable inspection. Parameter corruption within the drive's memory leads to erratic motor behavior and requires parameter verification against the original configuration or a factory reset. Communication errors on the RJ020 interface arise from damaged cables, incorrect network settings, or incompatible PLC configurations, demanding cable replacement and network diagnostics. Overheating due to inadequate cooling or excessive load causes thermal faults, which are resolved through improved ventilation and load reduction. Finally, encoder feedback problems, indicated by position errors or alarms, are addressed by encoder cable checks and encoder replacement if necessary.

Technical specifications

  • The Mitsubishi MR-J4-200B-RJ020 is a compact 2.0 kW servo drive (200-230V, 8.0 A) offering precise motion control up to 3000 RPM with RS-422/485 and SSCNET III connectivity, 0.01 arc-min positioning accuracy, forced air cooling, STO and Safe Stop 1 safety features, and dimensions of 50x150x160 mm weighing 1.5 kg.

Our Repair Process for the

MR-J4-200B-RJ020

Our repair process for the Mitsubishi MR-J4-200B-RJ020 servo drive begins with a thorough assessment of the reported fault. Overcurrent faults trigger insulation testing of the motor windings and a meticulous inspection of all motor cables for shorts or incorrect wiring. Suspected parameter corruption necessitates immediate parameter verification against documented configurations or a complete factory reset. Communication errors on the RJ020 interface demand cable replacement and comprehensive network diagnostics to ensure proper connectivity and configuration. Overheating issues are resolved through improved ventilation strategies and a reduction of the operational load. Encoder feedback problems initiate encoder cable checks, and if the issue persists, the encoder is replaced.

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.

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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.

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Ships from Rochester, NY

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