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Mitsubishi MR-J3-40BS Servo Control Unit

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Mitsubishi MR‑J3‑40BS

by Mitsubishi Electric

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OverviewThe Mitsubishi Electric MR-J3-40BS Servo Drive represents a pinnacle of contemporary motion control technology, meticulously engineered to provide exceptional accuracy and responsiveness within industrial automation systems. This 400W AC servo amplifier, a key component of the esteemed MELSERVO J3 Series, integrates effortlessly into advanced setups demanding meticulous performance. Optimized for operation with a 3-phase 200–230V input, the MR-J3-40BS excels in environments where rapid response times and superior positional accuracy are paramount. Its compact construction conceals significant capabilities, making it a prime selection for installations with limited space in robotics, specialized manufacturing, and diverse automated machinery. Employing SSCNET III communication protocol, this servo drive guarantees incredibly fast and dependable data exchange, which is vital for harmonized multi-axis operations. The sophisticated control algorithms embedded within the MR-J3-40BS ensure consistent and precise movement, leading to enhanced efficiency and increased reliability of your equipment. With its instant compatibility with J3 motors and intelligent auto-tuning features, integration is simplified, reducing setup durations and maximizing output from the initial deployment.Key Features Output Power: 400 W for robust and efficient functional performance. Voltage Compatibility: Accepts 3-phase 200–230 V AC, ensuring broad industrial power supply integration. Communication Protocol: SSCNET III enables high-speed, deterministic networking, crucial for intricate automation tasks. Operational Modes: Supports Position, Speed, and Torque control for adaptable use across various machinery types. Rapid Processing: Achieves an exceptional 0.44 µs speed loop response, facilitating dynamic and accurate regulation. Space Efficiency: Engineered for optimal use of panel area, simplifying installation into confined control cabinets. Motor Compatibility: Seamlessly integrates with Mitsubishi J3 series servo motors through auto-tuning and plug-and-play functionality. Diagnostic Capabilities: Features integrated status and error indicators for swift troubleshooting and system oversight. Technical Specifications Model Identifier: MR-J3-40BS Product Line: MELSERVO J3 Rated Output: 400 W Input Electrical: 3-phase 200–230 V AC ±10% Frequency Range: 50/60 Hz Control Methods: Position, Speed, Torque Connectivity: SSCNET III Speed Loop Response: 2.5 kHz Encoder Support: 131072 ppr absolute Operating Temperature: 0 °C to 55 °C Cooling System: Natural cooling Installation Type: Panel mount Approximate Mass: 1.5 kg ApplicationsThe Mitsubishi Electric MR-J3-40BS Servo Drive is engineered for a diverse range of demanding industrial applications where precision, speed, and dependability are absolutely critical. Its strong performance makes it an indispensable component in: Semiconductor and electronics production: Essential for highly accurate pick-and-place processes and delicate component handling. High-precision packaging and labeling systems: Guarantees accurate, rapid product packaging and labeling for consistent quality. Robotics and multi-axis control setups: Delivers the precision and responsiveness necessary for complex robotic movements and synchronized multi-axis operations. Compact industrial automation systems: Its small footprint and powerful capabilities are perfect for maximizing space in automated environments. Assembly lines and conveyor system integration: Facilitates smooth, accurate, and high-speed material handling and assembly tasks. Why Choose This Model?The MR-J3-40BS stands out as a superior selection for numerous reasons, making it a sound investment for upgrading your automation infrastructure: Advanced Network Performance: The integrated SSCNET III ensures ultra-fast, robust, and noise-resistant communication, virtually eliminating latency in critical applications. Exceptional Motion Accuracy: Equipped with sophisticated control algorithms, this drive provides outstanding precision and stability, vital for maintaining tight tolerances and consistent product quality. Dependable Integration: Designed for seamless and reliable integration. Order NowElevate your industrial automation with the Mitsubishi MR-J3-40BS Servo Drive. Contact us today for pricing and availability information.FAQWhat is the rated output power of the MR-J3-40BS?The MR-J3-40BS has a rated output power of 400 W, suitable for a variety of industrial applications.What communication protocol does the MR-J3-40BS utilize?This servo drive uses the SSCNET III communication protocol, known for its high-speed and deterministic networking capabilities.Can the MR-J3-40BS be used with existing Mitsubishi J3 motors?Yes, the MR-J3-40BS is designed for plug-and-play compatibility with Mitsubishi J3 series servo motors and supports advanced auto-tuning functions.

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PRODUCT DETAILS

Mitsubishi MR‑J3‑40BS

Overview

This is a genuine Mitsubishi Electric component. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Mitsubishi Electric catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Mitsubishi Electric automation ecosystem

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Mitsubishi Electric equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Mitsubishi Electric catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Mitsubishi Electric platform with documented conversion notes

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Model Identifier: MR-J3-40BS
  • Product Line: MELSERVO J3
  • Rated Output: 400 W
  • Input Electrical: 3-phase 200–230 V AC ±10%
  • Frequency Range: 50/60 Hz
  • Control Methods: Position, Speed, Torque
  • Connectivity: SSCNET III
  • Speed Loop Response: 2.5 kHz
  • Encoder Support: 131072 ppr absolute
  • Operating Temperature: 0 °C to 55 °C
  • Cooling System: Natural cooling
  • Installation Type: Panel mount
  • Approximate Mass: 1.5 kg

Applications

The Mitsubishi Electric MR-J3-40BS Servo Drive is engineered for a diverse range of demanding industrial applications where precision, speed, and dependability are absolutely critical. Its strong performance makes it an indispensable component in:

  • Semiconductor and electronics production: Essential for highly accurate pick-and-place processes and delicate component handling.
  • High-precision packaging and labeling systems: Guarantees accurate, rapid product packaging and labeling for consistent quality.
  • Robotics and multi-axis control setups: Delivers the precision and responsiveness necessary for complex robotic movements and synchronized multi-axis operations.
  • Compact industrial automation systems: Its small footprint and powerful capabilities are perfect for maximizing space in automated environments.
  • Assembly lines and conveyor system integration: Facilitates smooth, accurate, and high-speed material handling and assembly tasks.

Why Choose the MR‑J3‑40BS?

The MR-J3-40BS stands out as a superior selection for numerous reasons, making it a sound investment for upgrading your automation infrastructure:

  • Advanced Network Performance: The integrated SSCNET III ensures ultra-fast, robust, and noise-resistant communication, virtually eliminating latency in critical applications.
  • Exceptional Motion Accuracy: Equipped with sophisticated control algorithms, this drive provides outstanding precision and stability, vital for maintaining tight tolerances and consistent product quality.
  • Dependable Integration: Designed for seamless and reliable integration.

Availability & Shipping

  • In stock: MR‑J3‑40BS ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every MR‑J3‑40BS ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Mitsubishi Electric

The MR-J3-40BS has a rated output power of 400 W, suitable for a variety of industrial applications.

Machine down? We ship parts the same day.

New, surplus, and refurbished Mitsubishi Electric inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

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PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.

Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

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