{"product_id":"mitsubishi-electric-mr-j4-70b-eb-melservo-j4-servo-amplifier","title":"Mitsubishi Electric MR-J4-70B-EB MELSERVO-J4 Servo Amplifier","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eDesigned to meet high-performance motion requirements in automated industrial systems, the Mitsubishi Electric MR-J4-70B-EB AC servo amplifier delivers precise torque, speed, and positioning control. Operating within the high-speed \u003cstrong\u003eMELSERVO-J4\u003c\/strong\u003e ecosystem, this unit is engineered for systems requiring synchronized multi-axis control over the high-speed \u003cstrong\u003eSSCNET III\/H\u003c\/strong\u003e fiber optic motion network. With a rated output of \u003cstrong\u003e0.75 kW\u003c\/strong\u003e (750 Watts), it provides high-frequency response and robust thermal efficiency under demanding heavy-duty operating cycles.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Speed SSCNET III\/H Interface:\u003c\/strong\u003e Utilizes noise-immune fiber optic communication for high-speed, synchronized system connection.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdvanced Vibration Suppression:\u003c\/strong\u003e Incorporates dual-model vibration suppression control to minimize machine resonance during high-speed moves.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Resolution Feedback:\u003c\/strong\u003e Supports high-resolution serial encoders to ensure positional repeatability and absolute positioning accuracy.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact IP20 Enclosure:\u003c\/strong\u003e Designed for space-saving control cabinet mounting with integrated forced-cooling management.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003eSynchronized multi-axis packaging and bottling machinery.\u003c\/li\u003e\n  \u003cli\u003eHigh-speed industrial pick-and-place gantry systems.\u003c\/li\u003e\n  \u003cli\u003eAutomated drainage pumps and industrial fluid transport system control.\u003c\/li\u003e\n  \u003cli\u003ePrecision semiconductor and electronics assembly systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #cbd5e0;\"\u003e\n        \u003cth style=\"padding: 10px; text-align: left; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003eValue\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eMitsubishi Electric\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eModel Identifier\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eMR-J4-70B-EB\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eProduct Series\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eMELSERVO-J4\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eOutput Rating\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e0.75 kW (750 W)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eInput Power Supply Voltage\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e1-phase or 3-phase 200 V AC to 240 V AC, 50\/60 Hz\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eControl Communication Interface\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eSSCNET III\/H (Optical Communication)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eInterface Power Supply\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e24 V DC (tolerance limits: +\/-10%, required current: 0.3 A)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eCooling Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eForce cooling\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eIngress Protection Rating\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eIP20 (open structure)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eNet Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e1.4 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e3.0 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eConnections and Interfaces\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #cbd5e0;\"\u003e\n        \u003cth style=\"padding: 10px; text-align: left; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eConnector Code\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003eFunction \/ Connection Assignment\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eCN1\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eDigital Input \/ Output signals\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eCN2\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eLoad-side feedback encoder interface (High-speed serial)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eCN3\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003ePersonal Computer Configuration Interface (USB port)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eCN8\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eSafe Torque Off (STO) integrated functional safety connections\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eCN1A \/ CN1B\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eSSCNET III\/H Optical Fiber Network Inbound \/ Outbound Links\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4 style=\"color: #1a365d; font-size: 1.1rem; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe MR-J4-70B-EB serves as a direct upgrade to previous generation MELSERVO units. When migrating a system configured with MR-J3-70B components to the MR-J4 series, confirm configuration parameter mappings in MT Developer2. Note that while SSCNET III\/H optic fiber cables are physically identical, parameter setups differ in scan rate cycles. Check firmware versions if matching older controller units.\u003c\/p\u003e\n\n\u003ch4 style=\"color: #1a365d; font-size: 1.1rem; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eTo prevent thermal degradation within high-density control enclosures, maintain a clear ventilation space of at least 50 mm above and below the amplifier frame. Close-mounting multiple MR-J4 modules requires dynamic derating or the installation of auxiliary cabinet circulation fans, as ambient temperatures exceeding 55 Celsius inside the enclosure can trigger protective overtemperature faults.\u003c\/p\u003e\n\n\u003ch4 style=\"color: #1a365d; font-size: 1.1rem; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eOptical communication cables (MR-J3BUS lines) are highly sensitive to sharp physical bends. Maintain a minimum bending radius of at least 25 mm when routing fibers inside wire ducts to prevent signal loss faults (indicated by communication error codes such as AL.37). Ensure that the 24 V DC auxiliary interface power supply maintains a stable voltage within its 10% tolerance limit during peak brake activation periods.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem; border-radius: 4px;\"\u003e\n  \u003cstrong style=\"color: #9b2c2c; display: block; margin-bottom: 0.5rem;\"\u003eCRITICAL WARNING: SAFETY FIRST\u003c\/strong\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0; font-size: 0.95rem;\"\u003eIsolate and lock out all AC input power before initiating installation, removal, or terminal wiring of the servo amplifier. Wait at least 15 minutes after power-down to allow internal high-voltage storage capacitors to fully discharge. Always verify the DC bus voltage across terminals L+ and L- is below safe thresholds with a digital multimeter before contacting terminals.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 1rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; font-weight: bold; border-radius: 50%; min-width: 30px; height: 30px; display: flex; align-items: center; justify-content: center;\"\u003e1\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0; padding-top: 2px;\"\u003eMount the amplifier vertically on a flat, rigid metal surface inside your enclosure to maximize heat dissipation through the integrated heat sink.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; font-weight: bold; border-radius: 50%; min-width: 30px; height: 30px; display: flex; align-items: center; justify-content: center;\"\u003e2\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0; padding-top: 2px;\"\u003eConnect the protective earth (PE) grounding conductor directly to the dedicated ground terminal on the chassis before executing other wiring phases.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; font-weight: bold; border-radius: 50%; min-width: 30px; height: 30px; display: flex; align-items: center; justify-content: center;\"\u003e3\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0; padding-top: 2px;\"\u003eTerminate the AC power supply lines to terminals L1, L2, and L3 (three-phase setups) or correct single-phase configuration layout terminals as detailed in the technical manual.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; font-weight: bold; border-radius: 50%; min-width: 30px; height: 30px; display: flex; align-items: center; justify-content: center;\"\u003e4\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0; padding-top: 2px;\"\u003eConnect the high-speed fiber optic cables to optical ports CN1A and CN1B, ensuring complete insertion until a positive physical click lock is felt.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Mitsubishi Electric","offers":[{"title":"Default Title","offer_id":53102123680107,"sku":"MR-J4-70B-EB","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/MR-J4-70B-EB-kd5kakkpfp3.png?v=1776137887","url":"https:\/\/www.plcprotech.com\/id\/products\/mitsubishi-electric-mr-j4-70b-eb-melservo-j4-servo-amplifier","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}