{"product_id":"mitsubishi-electric-mr-j3-500a-melservo-j3-ac-servo-amplifier","title":"Mitsubishi Electric MR-J3-500A MELSERVO-J3 AC Servo Amplifier","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nPrecision motion profiles in demanding industrial automation architectures are governed by the \u003cstrong\u003eMitsubishi Electric MR-J3-500A\u003c\/strong\u003e, a digital \u003cstrong\u003eMELSERVO-J3 AC Servo Amplifier\u003c\/strong\u003e designed to drive 5.0 kW rotary servo motors. This unit features a versatile general-purpose analog and pulse-train interface, enabling seamless integration into conventional positioning, velocity, and torque control loops. By leveraging real-time adaptive auto-tuning and advanced vibration suppression filters, this amplifier dynamically counteracts mechanical resonance and load inertia fluctuations, ensuring stable, high-speed positioning operations.\n\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 5px; margin-top: 1.5rem;\"\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 20px; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Resolution Feedback Compatibility:\u003c\/strong\u003e Interfaces natively with 18-bit absolute\/incremental encoders (262,144 pulses per revolution) to ensure exceptional speed stability and tracking precision.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdvanced Vibration Suppression:\u003c\/strong\u003e Employs adaptive vibration control filters that automatically adjust to eliminate high-frequency mechanical resonances and low-frequency load oscillations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReal-Time Auto-Tuning:\u003c\/strong\u003e Continuously monitors machine inertia changes during operation, automatically optimizing gain parameters without requiring manual site intervention.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRugged Electrical Design:\u003c\/strong\u003e Includes built-in dynamic braking circuits for controlled emergency deceleration under high-inertia conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 5px; margin-top: 1.5rem;\"\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 20px; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eHigh-speed pick-and-place packaging systems.\u003c\/li\u003e\n  \u003cli\u003eMulti-axis CNC machining centers and metal forming machinery.\u003c\/li\u003e\n  \u003cli\u003eAutomated materials handling and high-capacity gantry lifters.\u003c\/li\u003e\n  \u003cli\u003eAutomotive assembly lines and precision indexing tables.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 5px; margin-top: 1.5rem;\"\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\u003e\n        \u003cth style=\"border: 1px solid #e2e8f0; padding: 12px; text-align: left; font-weight: bold; border-bottom: 2px solid #2b6cb0;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"border: 1px solid #e2e8f0; padding: 12px; text-align: left; font-weight: bold; border-bottom: 2px solid #2b6cb0;\"\u003eSpecification Value\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px;\"\u003eMitsubishi Electric\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px;\"\u003eMR-J3-500A\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px; font-weight: bold;\"\u003eSeries\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px;\"\u003eMELSERVO-J3\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px; font-weight: bold;\"\u003eCompatible Motor Capacity\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px;\"\u003e5.0 kW (5000 W)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px; font-weight: bold;\"\u003eMain Circuit Power Input\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px;\"\u003e3-phase 200 to 230 VAC, 50\/60 Hz\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px; font-weight: bold;\"\u003eControl Circuit Power Input\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px;\"\u003eSingle-phase 200 to 230 VAC, 50\/60 Hz\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px; font-weight: bold;\"\u003eRated Output Voltage\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px;\"\u003e3-phase 170 VAC (PWM controlled)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px; font-weight: bold;\"\u003eControl Method\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px;\"\u003eSine-wave PWM control, current control system\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px; font-weight: bold;\"\u003eControl Interface\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px;\"\u003ePulse train input \/ Analog voltage command interface\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px; font-weight: bold;\"\u003eDynamic Brake\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px;\"\u003eBuilt-in\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px; font-weight: bold;\"\u003eCooling System\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px;\"\u003eForced ventilation fan\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px; font-weight: bold;\"\u003eAmbient Operating Temperature\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px;\"\u003e0 to 55 degC (non-freezing)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px;\"\u003e6.0 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px; font-weight: bold;\"\u003ePackage Dimensions (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px;\"\u003e350 mm x 250 mm x 150 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 5px; margin-top: 1.5rem;\"\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\u003e\n        \u003cth style=\"border: 1px solid #e2e8f0; padding: 12px; text-align: left; font-weight: bold; border-bottom: 2px solid #2b6cb0;\"\u003eTerminal \/ Connector\u003c\/th\u003e\n        \u003cth style=\"border: 1px solid #e2e8f0; padding: 12px; text-align: left; font-weight: bold; border-bottom: 2px solid #2b6cb0;\"\u003eFunctional Assignment\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px; font-weight: bold;\"\u003eL1, L2, L3\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px;\"\u003eMain circuit power supply input (3-phase AC)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px; font-weight: bold;\"\u003eL11, L21\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px;\"\u003eControl circuit power supply input (single-phase AC)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px; font-weight: bold;\"\u003eU, V, W\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px;\"\u003eServo motor power output connection\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px; font-weight: bold;\"\u003eP, C, D\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px;\"\u003eExternal regenerative brake resistor interface terminals\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px; font-weight: bold;\"\u003eCN1\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px;\"\u003eI\/O signal connector (analog commands, control signals, pulse input)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px; font-weight: bold;\"\u003eCN2\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px;\"\u003eEncoder feedback communication port\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px; font-weight: bold;\"\u003eCN3\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e2e8f0; padding: 12px;\"\u003ePC setup software (MR Configurator) serial communication port\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 5px; margin-top: 1.5rem;\"\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4 style=\"color: #2d3748; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nWhen upgrading legacy motion control hardware to newer architectures, the MR-J3-500A can be replaced by the newer MELSERVO-J4 series counterpart (MR-J4-500A). However, this migration requires the use of a conversion cable adapter kit to adapt the older encoder wiring and physical mounting adapters, as the bolt holes differ. Always back up the drive parameters using MR Configurator setup software (version MRZJW3-SETUP221E or later) via the CN3 port prior to removing a faulty unit.\n\u003c\/p\u003e\n\n\u003ch4 style=\"color: #2d3748; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nAt 5.0 kW, the thermal dissipation inside electrical cabinets is substantial. Ensure a minimum clearance of 40 mm above and below the amplifier for airflow. In high-cycle deceleration profiles, the built-in regenerative resistor may saturate, triggering the \u003cstrong\u003eAL.30 (Regenerative Error)\u003c\/strong\u003e fault. Under these circumstances, you must disconnect the built-in resistor bar between the P and D terminals, and mount an external high-capacity regenerative brake resistor option (such as the MR-RB5E) across the P and C terminals.\n\u003c\/p\u003e\n\n\u003ch4 style=\"color: #2d3748; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nFor absolute positioning configurations, an external battery (MR-J3BAT) must be connected to the dedicated slot on the front of the unit to retain the encoder's multi-turn data during power-off states. Additionally, wire the control circuit power supply (L11\/L21) upstream of the main power contactor. This ensures that even when the main three-phase power (L1\/L2\/L3) is tripped during an E-stop condition, the drive maintains absolute encoder communications and displays active error diagnostics on the built-in LED display.\n\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 5px; margin-top: 1.5rem;\"\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 15px; margin-bottom: 1.5rem;\"\u003e\n  \u003cstrong style=\"color: #9b2c2c; display: block; margin-bottom: 5px;\"\u003eCRITICAL WARNING\u003c\/strong\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0;\"\u003e\n    Before performing mounting, wiring, or manual inspection, completely de-energize the incoming three-phase supply lines. After isolating power, wait at least 15 minutes for the internal high-voltage bus capacitors to discharge. Verify that the charge LED indicator on the front panel is completely extinguished before handling any physical terminals or connections.\n  \u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 15px; margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 12px;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold;\"\u003e1\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003e\n      \u003cstrong\u003eMechanical Mounting:\u003c\/strong\u003e Securely install the unit vertically on a flat, vibration-free panel using the rear mounting screws. Ensure the cooling fan airflow is completely unobstructed.\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 12px;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold;\"\u003e2\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003e\n      \u003cstrong\u003eGround Connection:\u003c\/strong\u003e Establish a robust grounding network by connecting the amplifier protective earth (PE) terminal to the cabinet's main ground bar using a low-impedance copper wire.\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 12px;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold;\"\u003e3\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003e\n      \u003cstrong\u003ePower \u0026amp; Control Connections:\u003c\/strong\u003e Route control circuit (L11\/L21) and main circuit (L1\/L2\/L3) lines separately from the motor power outputs (U\/V\/W) to minimize electromagnetic interference (EMI). Use shielded twisted-pair cables for signal connections.\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 12px;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold;\"\u003e4\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003e\n      \u003cstrong\u003eParameter Configuration:\u003c\/strong\u003e Power up the control circuit first, establish serial communication via the CN3 port, and upload\/verify operational parameter configurations before enabling the main power input.\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Mitsubishi Electric","offers":[{"title":"Default Title","offer_id":53102130987371,"sku":"MR-J3-500A","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/MR-J3-500A-wazpg234fdo.png?v=1776137849","url":"https:\/\/www.plcprotech.com\/fa\/products\/mitsubishi-electric-mr-j3-500a-melservo-j3-ac-servo-amplifier","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}