{"product_id":"mitsubishi-electric-mr-j4-60b-mr-j4-series-servo-amplifier","title":"Mitsubishi Electric MR-J4-60B MR-J4 Series Servo Amplifier","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eProviding high-performance motion control via the SSCNET III\/H synchronous network, the \u003cstrong\u003eMitsubishi Electric MR-J4-60B\u003c\/strong\u003e delivers precise positioning and speed control for demanding industrial automation systems. This 600W servo amplifier features native integration with high-speed motion controllers, utilizing a dedicated serial interface to process feedback loop data with microsecond-level synchronization. Equipped with built-in Safe Torque Off (STO) functionality and advanced real-time auto-tuning, the module ensures robust operational safety and minimizes mechanical vibration during transient acceleration cycles.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSSCNET III\/H Communication:\u003c\/strong\u003e High-speed optical fiber network interface for reliable, noise-immune, and synchronous motion command updates.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSine-Wave PWM Control:\u003c\/strong\u003e Advanced current control loop design optimization for smooth rotation and minimized torque ripple.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEmbedded Safety Functionality:\u003c\/strong\u003e Integrated Safe Torque Off (STO) complying with IEC\/EN 61800-5-2 for direct hardware-level safety shutdown.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReal-Time Auto-Tuning:\u003c\/strong\u003e Automatically calculates load inertia ratio and adjusts servo gains continuously during machine operation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntegrated Dynamic Brake:\u003c\/strong\u003e Built-in hardware dynamic brake circuit for rapid motor deceleration in emergency-stop conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Profile:\u003c\/strong\u003e Optimized footprint supporting high-density multi-axis installation configurations.\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: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eMulti-axis pick-and-place robotic systems\u003c\/li\u003e\n  \u003cli\u003eHigh-speed packaging and cartoning machinery\u003c\/li\u003e\n  \u003cli\u003eSemiconductor fabrication and wafer handling systems\u003c\/li\u003e\n  \u003cli\u003ePrecision CNC tool positioning and indexing tables\u003c\/li\u003e\n  \u003cli\u003eAutomated print registration and web tension control lines\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 #2b6cb0;\"\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;\"\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; 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-J4-60B\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;\"\u003eSeries\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eMELSERVO-MR-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 Rated Voltage\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e3-phase 170 VAC\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 Rated Current\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e3.2 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;\"\u003eMain Circuit Power Supply\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e3-phase or 1-phase 200 VAC to 240 VAC, 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;\"\u003eMain Circuit Rated Current\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e3.2 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;\"\u003eControl Circuit Power Supply\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e1-phase 200 VAC to 240 VAC, 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 Circuit Rated Current\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e0.2 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;\"\u003eInterface Power Supply Requirement\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e24 VDC +\/- 10% (Required Current Capacity: 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;\"\u003eControl Method\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eSine-wave PWM control \/ current control method\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;\"\u003eSafety Standard Compliance\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eSTO (IEC\/EN 61800-5-2)\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;\"\u003eInfiltration Protection (IP Rating)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eIP20 (Natural cooling, 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;\"\u003eOperating Ambient Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\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: 10px; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003eNet Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e1.0 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;\"\u003e2.0 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;\"\u003ePackage Dimensions (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e250 mm x 200 mm x 100 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; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0;\"\u003e\n        \u003cth style=\"padding: 10px; text-align: left; font-weight: bold; border-right: 1px solid #e2e8f0;\"\u003ePort\/Connector\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; text-align: left; 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; border-right: 1px solid #e2e8f0;\"\u003eCN1A \/ CN1B\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eSSCNET III\/H synchronous bus loop input\/output 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;\"\u003eCN2\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eFeedback loop encoder connector (supports high-speed serial encoder 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;\"\u003eCN3\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eI\/O digital signals, limit switches, and physical stroke inputs\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;\"\u003eSafety system dual-channel STO signal connection\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;\"\u003eL1 \/ L2 \/ L3\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eMain circuit AC power supply input terminals\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;\"\u003eL11 \/ L21\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eControl circuit auxiliary AC power supply input terminals\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;\"\u003eU \/ V \/ W\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eServo motor power output phase terminals\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 MR-J4-60B serves as the standard replacement path for legacy MR-J3-60B amplifiers on SSCNET III networks. While drop-in physical installation is possible, migration requires setting the parameters via MR Configurator2 to J3 compatibility mode. Note that high-resolution encoder capabilities and specific safety routines are capped when running on older backplanes.\u003c\/p\u003e\n\n\u003ch4\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen utilizing single-phase 200 VAC instead of a balanced three-phase system, output current performance must be derated. Ensure the internal dynamic brake resistor cycle limit is not exceeded; high-frequency start\/stop sequences can thermal-trip the drive. Maintain at least 10 mm spacing between adjacent drives when close-mounting in high-temperature environments.\u003c\/p\u003e\n\n\u003ch4\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eAlways use correct fiber-optic bend radii (minimum 25 mm) for SSCNET III cabling to avoid communication packet losses (indicated by AL 37 or AL e6 alarms). Ensure that shield grounding brackets are clamped directly to the bare metal mounting plate close to the CN2 encoder cable breakout to minimize EMI loop intrusion.\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;\"\u003e\n  \u003cstrong style=\"color: #9b2c2c; display: block; margin-bottom: 0.5rem;\"\u003eCRITICAL WARNING: HIGH VOLTAGE RISK\u003c\/strong\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0;\"\u003eIsolate and lock out all AC input power feeds before performing any service work. Wait at least 15 minutes after power-down to allow internal high-capacitance reservoirs to discharge fully. Verify that the front panel charge indicator LED is completely extinguished and measure the DC bus voltage across terminals P+ and N- with a certified meter before accessing terminal blocks.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 1rem; color: #2d3748; 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; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-weight: bold;\"\u003e1\u003c\/div\u003e\n    \u003cdiv style=\"padding-top: 2px;\"\u003eMount the amplifier vertically on a flat, unpainted metal backplane panel to secure proper thermal dissipation paths and a robust common ground.\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; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-weight: bold;\"\u003e2\u003c\/div\u003e\n    \u003cdiv style=\"padding-top: 2px;\"\u003eEnsure separate routing channels for high-voltage power leads (L1\/L2\/L3, U\/V\/W) and low-signal communication cables (SSCNET III fiber-optic and CN2 encoder lines) to avoid inductive coupling.\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; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-weight: bold;\"\u003e3\u003c\/div\u003e\n    \u003cdiv style=\"padding-top: 2px;\"\u003eTighten all terminal connections to the OEM torque specification limits to prevent thermal hot spots under peak continuous operating currents.\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Mitsubishi Electric","offers":[{"title":"Default Title","offer_id":53102143013227,"sku":"MR-J4-60B","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/mr-j4-60b-m0z2qi54wd3.png?v=1776137881","url":"https:\/\/www.plcprotech.com\/ms\/products\/mitsubishi-electric-mr-j4-60b-mr-j4-series-servo-amplifier","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}