{"product_id":"mitsubishi-electric-mr-j4-200b-rj-melservo-j4-series-servo-amplifier","title":"Mitsubishi Electric MR-J4-200B-RJ MELSERVO-J4 Series Servo Amplifier","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eProviding high-speed, high-precision motion control within the MELSERVO-J4 architecture, the \u003cstrong\u003eMitsubishi Electric MR-J4-200B-RJ\u003c\/strong\u003e is a \u003cstrong\u003e2 kW\u003c\/strong\u003e rated output AC servo amplifier. This unit utilizes the fiber-optic \u003cstrong\u003eSSCNET III\/H\u003c\/strong\u003e network interface to deliver synchronous real-time control with minimal noise susceptibility. The \u003cstrong\u003e-RJ\u003c\/strong\u003e suffix indicates its unique capability to support conversion units, enabling flexible integration with external encoder interfaces, CC-Link IE Field communication networks, or specialized absolute position detection systems. Operating on a three-phase input of 200 V AC to 240 V AC, this amplifier coordinates with HG-series rotary or linear servo motors to maintain exceptional loop response times in demanding industrial motion applications.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eHigh-Speed SSCNET III\/H:\u003c\/strong\u003e Uses optical fiber communication to ensure noise-free, high-speed command transmission and precise multi-axis synchronization.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eSpecialized -RJ Compatibility:\u003c\/strong\u003e Supports interface conversion units to connect with alternative absolute feedback encoders and auxiliary networks.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eAdvanced Vibration Suppression:\u003c\/strong\u003e Built-in machine resonance filter and low-frequency vibration suppression algorithm to protect mechanical structures.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eRobust Protective Functions:\u003c\/strong\u003e Integrated overcurrent shutoff, regenerative overvoltage shutoff, and motor overload (thermal overload) detection.\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 style=\"margin-bottom: 0.5rem;\"\u003eMulti-axis CNC machining centers and high-speed milling systems.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003ePrecision semiconductor assembly, pick-and-place, and wafer handling systems.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003eAutomated packaging machinery, rotary indexing tables, and high-speed labeling systems.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003eCartesian and multi-joint industrial robotics requiring coordinated trajectory control.\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; text-align: left;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0;\"\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold;\"\u003eSpecification Value\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;\"\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;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eMR-J4-200B-RJ\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eSeries Name\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;\"\u003eRated Output\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e2.0 kW\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eMain Circuit Power Supply\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e3-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;\"\u003eInterface Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eSSCNET III\/H (with Conversion Unit Support)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eMolded-Case Circuit Breaker (MCCB)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e30 A Frame (20 A Rated Current)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eMagnetic Contactor\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eDUD-N30\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eVibration Resistance\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e5.9 m\/s2, at 10 Hz to 55 Hz (X, Y, and Z axes)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eInstallation Environment\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eIndoors (no direct sunlight), free of corrosive gas, oil mist, dust\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eMax Altitude\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e2000 m or less above sea level\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eNet Mass\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e2.1 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;\"\u003eShipping Weight\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; text-align: left;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0;\"\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold;\"\u003eConnector \/ Terminal\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold;\"\u003eFunctional 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;\"\u003eL1, L2, L3\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eMain circuit 3-phase AC input power terminal 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;\"\u003eU, V, W\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eServo motor power output phase terminals (must not be crossed)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eCN1A \/ CN1B\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eSSCNET III\/H fiber-optic communication connection ports (IN \/ OUT)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eCN2\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eMotor encoder feedback signal input connector\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eCN3\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eAnalog monitor and auxiliary input\/output 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\n\u003ch3\u003eAlternative Models \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe standard MR-J4-200B version is directly compatible with basic SSCNET III\/H setups, but it lacks the interface translation layer of the -RJ variant. If you are substituting an older MR-J3-200B drive, you must run the system controller in J3 compatibility mode or migrate your network master parameters to SSCNET III\/H. Note that the -RJ model allows the attachment of the MR-J4-T20 card for seamless transition to CC-Link IE Field networks without replacing the entire amplifier chassis.\u003c\/p\u003e\n\n\u003ch3\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eEnsure optimal space layout: because the unit dissipates up to 120 W under continuous maximum loads, adjacent amplifiers must maintain a minimum 10 mm clear lateral spacing unless derated. In highly reflective optical environments, or where optical fiber cables are tightly bent, AL.37 (Parameter Error) or AL.16 (Encoder Initial Communication Error) can trigger due to packet loss. Maintain a fiber-optic bend radius of at least 25 mm to prevent light transmission degradation.\u003c\/p\u003e\n\n\u003ch3\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eAlways connect the ground terminal (PE) of the servo motor directly to the ground terminal of the amplifier to suppress high-frequency EMI. Grounding the motor only to the machine frame can cause intermittent absolute encoder errors due to structural potential differences. When utilizing absolute position detection, ensure a compliant lithium-metal battery pack (such as the MR-BAT6V1SET) is installed and operational before attempting to clear home parameters.\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 voltage levels up to 340 V DC may persist on the internal bus capacitors even after AC supply power is disconnected. Disconnect all primary power and wait at least 15 minutes before touching terminals. Confirm that the charge LED indicator on the front panel is completely extinguished before proceeding with wiring.\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 1rem; color: #2d3748;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start;\"\u003e\n    \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; min-width: 28px; height: 28px; border-radius: 50%; background-color: #2b6cb0; color: #ffffff; margin-right: 12px; font-weight: bold; flex-shrink: 0;\"\u003e1\u003c\/span\u003e\n    \u003cp style=\"margin: 0;\"\u003eMount the amplifier vertically on an unpainted metal electrical panel plate to optimize heat dissipation and ground path continuity.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start;\"\u003e\n    \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; min-width: 28px; height: 28px; border-radius: 50%; background-color: #2b6cb0; color: #ffffff; margin-right: 12px; font-weight: bold; flex-shrink: 0;\"\u003e2\u003c\/span\u003e\n    \u003cp style=\"margin: 0;\"\u003eWire the main supply input (L1\/L2\/L3) through a designated 30 A Frame circuit breaker and magnetic contactor to protect internal diode bridges from line spikes.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start;\"\u003e\n    \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; min-width: 28px; height: 28px; border-radius: 50%; background-color: #2b6cb0; color: #ffffff; margin-right: 12px; font-weight: bold; flex-shrink: 0;\"\u003e3\u003c\/span\u003e\n    \u003cp style=\"margin: 0;\"\u003eRoute motor output lines (U\/V\/W) separately from low-voltage signal wires (SSCNET fiber, encoder line, external I\/O) to avoid capacitive cross-talk.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start;\"\u003e\n    \u003cspan style=\"display: inline-flex; align-items: center; justify-content: center; min-width: 28px; height: 28px; border-radius: 50%; background-color: #2b6cb0; color: #ffffff; margin-right: 12px; font-weight: bold; flex-shrink: 0;\"\u003e4\u003c\/span\u003e\n    \u003cp style=\"margin: 0;\"\u003eConnect the SSCNET III\/H fiber-optic cables, verifying that they snap securely into CN1A and CN1B with their protective dust caps removed.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Mitsubishi Electric","offers":[{"title":"Default Title","offer_id":53102139310443,"sku":"MR-J4-200B-RJ","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/mr-j4-200b-rj-hbs52y5gzzu.png?v=1776137867","url":"https:\/\/www.plcprotech.com\/id\/products\/mitsubishi-electric-mr-j4-200b-rj-melservo-j4-series-servo-amplifier","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}