{"product_id":"mitsubishi-electric-mr-j2s-350a-melservo-j2s-ac-servo-drive","title":"Mitsubishi Electric MR-J2S-350A MELSERVO-J2S AC Servo Drive","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eExecuting high-precision closed-loop motion control, the \u003cstrong\u003eMitsubishi Electric MR-J2S-350A\u003c\/strong\u003e is a high-performance AC servo drive engineered for demanding industrial positioning applications. This \u003cstrong\u003e3.5 kW\u003c\/strong\u003e capacity drive operates within the renowned MELSERVO-J2S series, utilizing advanced \u003cstrong\u003esinusoidal PWM control\u003c\/strong\u003e with current loop integration to ensure exceptionally smooth motor rotation even at low speeds. Compatible with both three-phase 200V AC and single-phase 230V AC input configurations, this unit serves as a critical component in machine tool feed drives, automated packaging lines, and multi-axis Cartesian systems.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 20px; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eHigh-resolution encoder feedback interface supporting absolute and incremental configurations.\u003c\/li\u003e\n  \u003cli\u003eReal-time adaptive tuning that dynamically matches changing load inertia for optimal stability.\u003c\/li\u003e\n  \u003cli\u003eIntegrated dynamic brake for rapid deceleration and emergency stop execution.\u003c\/li\u003e\n  \u003cli\u003eHigh-speed response frequency performance exceeding 550 Hz to handle rapid-cycle dynamics.\u003c\/li\u003e\n  \u003cli\u003eRS-232C and RS-422 serial interfaces facilitating multi-drop monitoring and setup diagnostics.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 20px; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eHeavy-duty packaging machinery and vertical form-fill-seal (VFFS) systems.\u003c\/li\u003e\n  \u003cli\u003eCNC machine tool feed axes and high-speed indexing tables.\u003c\/li\u003e\n  \u003cli\u003eMulti-axis gantry robots and material handling transfer lines.\u003c\/li\u003e\n  \u003cli\u003ePrecision rotary printing presses and web tension control 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;\"\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold; width: 40%;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eMitsubishi Electric\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eModel\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eMR-J2S-350A\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eSeries\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eMELSERVO-J2S\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eControl System\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eSinusoidal PWM control \/ current control system\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eRated Output Power\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e3.5 kW\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eInput Voltage \/ Phase\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e3-phase 200-230V AC, 50\/60 Hz OR Single-phase 230V AC, 50\/60 Hz\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003ePermissible Frequency Fluctuation\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eWithin +\/- 5%\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eSpeed Frequency Response\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e550 Hz or more\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eDynamic Brake\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eBuilt-in\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eCooling Method\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eForced ventilation (built-in cooling fan)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eOperating Ambient Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e0 to 55 degC (non-freezing)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eAmbient Humidity\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e90% RH or less (non-condensing)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eCountry of Origin\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eJapan\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e3.5 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003ePackage Dimensions (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e280 x 200 x 130 mm\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;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0;\"\u003e\n        \u003cth style=\"padding: 8px; text-align: left; font-weight: bold; width: 30%;\"\u003eTerminal \/ Port\u003c\/th\u003e\n        \u003cth style=\"padding: 8px; text-align: left; font-weight: bold;\"\u003eFunction \/ Circuit 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: 8px; font-weight: #2d3748;\"\u003eL1, L2, L3\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eMain circuit power input (3-phase AC)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: #2d3748;\"\u003eL11, L21\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eControl circuit power input\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: #2d3748;\"\u003eU, V, W\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eServo motor output terminals (Phase matching is critical)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: #2d3748;\"\u003eP, Cr\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eExternal regenerative resistor connections (Remove jumper across P-D if used)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: #2d3748;\"\u003eCN1A \/ CN1B\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eI\/O signal connector ports for host controller interfacing\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: #2d3748;\"\u003eCN2\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eEncoder feedback connector port\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\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe MELSERVO-J2S series is a legacy standard. When migrating legacy systems to newer architectures (such as the MR-J4 or MR-J5 series), dynamic parameter conversion and specialized terminal adapter modules are required. Ensure any replaced units match the correct physical suffix (e.g., \"-A\" for general-purpose analog\/pulse train, or \"-B\" for SSCNET bus networks) as their control boards are completely non-interchangeable.\u003c\/p\u003e\n\n\u003ch4\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eUnder heavy, high-inertia duty cycles, the MR-J2S-350A is prone to \u003cstrong\u003eAL-30\u003c\/strong\u003e (Regenerative Error) or \u003cstrong\u003eAL-32\u003c\/strong\u003e (Overvoltage) faults. If these faults persist during rapid deceleration ramps, the built-in regenerative capacity has been exceeded. Resolving this requires installation of an external, high-wattage regenerative resistor across terminals P and C, with the factory jumper between P and D removed in the software parameters.\u003c\/p\u003e\n\n\u003ch4\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eAlways route high-voltage motor output cables (U, V, W) in separate conduits away from sensitive low-voltage I\/O cables (CN1A\/CN1B) and encoder lines (CN2). Unshielded parallel routing is a primary cause of position deviation errors and signal noise. Ensure control circuit power (L11, L21) is energized prior to or simultaneously with main power (L1, L2, L3) to allow the control CPU to initialize phase-loss diagnostics correctly.\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; color: #9b2c2c;\"\u003e\n  \u003cstrong\u003eCRITICAL WARNING:\u003c\/strong\u003e Hazardous voltages remain present within the internal bus capacitors even after the mains power supply is isolated. Wait at least 10 minutes following isolation and confirm that the red \"CHARGE\" LED on the physical front panel is completely extinguished before removing terminal covers or executing wiring changes.\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 1rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold;\"\u003e1\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 4px;\"\u003eMount the drive vertically inside an enclosed electrical cabinet. Ensure a minimum spacing clearance of 40 mm on both sides and 100 mm above and below the drive to facilitate unobstructed airflow from the built-in cooling fan.\u003c\/div\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; min-width: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold;\"\u003e2\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 4px;\"\u003eConnect the dedicated PE (protective earth) ground terminal first using a low-impedance copper conductor to mitigate high-frequency electrical noise and protect system electronics.\u003c\/div\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; min-width: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold;\"\u003e3\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 4px;\"\u003eWire the control circuit power supply to L11 and L21, and the main input circuit power to terminals L1, L2, and L3, ensuring proper sizing of branch circuit protection devices (breakers\/fuses).\u003c\/div\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; min-width: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold;\"\u003e4\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 4px;\"\u003eSecurely connect the motor phase lines to terminals U, V, and W. Do not reverse these phase outputs as it will result in motor runaway faults and potential physical mechanical damage.\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Mitsubishi Electric","offers":[{"title":"Default Title","offer_id":53102144160107,"sku":"MR-J2S-350A","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/mr-j2s-350a1-10days-n3yhhpotxjh.png?v=1776137829","url":"https:\/\/www.plcprotech.com\/products\/mitsubishi-electric-mr-j2s-350a-melservo-j2s-ac-servo-drive","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}