{"product_id":"mitsubishi-electric-mr-j4-500a-melservo-j4-series-1-axis-servo-amplifier","title":"Mitsubishi Electric MR-J4-500A MELSERVO-J4 Series 1-Axis Servo Amplifier","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eProviding high-performance motion control within modern automation architectures, the \u003cstrong\u003eMitsubishi Electric MR-J4-500A\u003c\/strong\u003e operates as a highly reliable 1-axis servo amplifier. This general-purpose unit integrates seamlessly with diverse motion control networks using pulse train or analog voltage commands. Designed for the \u003cstrong\u003eMELSERVO-J4 series\u003c\/strong\u003e, it provides high-resolution 22-bit encoder feedback, superior positioning accuracy, and \u003cstrong\u003e5.0 kW\u003c\/strong\u003e rated output. The integrated Safe Torque Off (STO) safety functions and advanced auto-tuning vibration filters ensure safe, smooth, and highly efficient industrial operation.\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\u003eGeneral-Purpose Interface:\u003c\/strong\u003e Flexible control capability supporting position, speed, and torque control via pulse train or analog input.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Resolution Feedback:\u003c\/strong\u003e Complemented by 22-bit absolute\/incremental encoders (4,194,304 pulses\/rev) for exceptional positioning accuracy.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdvanced Vibration Suppression:\u003c\/strong\u003e Employs Adaptive Filter II and robust filter algorithms to eliminate mechanical resonance and dynamic vibration.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEmbedded Safety Functionality:\u003c\/strong\u003e Integrated Safe Torque Off (STO) according to IEC\/EN 61800-5-2, certified to SIL 3 and PL e.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTough Drive Function:\u003c\/strong\u003e Features automatic temperature and vibration adjustment options to maximize operational uptime under harsh environmental conditions.\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\u003ePrecision positioning systems in semiconductor and electronics manufacturing.\u003c\/li\u003e\n  \u003cli\u003eHigh-speed rotary and linear packaging machinery.\u003c\/li\u003e\n  \u003cli\u003eMulti-axis gantry robots and pick-and-place material handling systems.\u003c\/li\u003e\n  \u003cli\u003eAutomated assembly lines, metal forming, and tooling 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; font-size: 0.95rem;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #1a365d; text-align: left;\"\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold; color: #1a365d;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold; color: #1a365d;\"\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 Identifier\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eMR-J4-500A\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 Series\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eCommand Interface\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eGeneral-purpose interface (Pulse Train \/ Analog Command)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eMotor Rated Output\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e5.0 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;\"\u003eOutput Rated Voltage\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eThree-phase AC170 V\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eOutput Rated Current\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e28.0 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;\"\u003eMain Circuit Power Input\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eThree-phase AC200 V to 240 V, 50 Hz \/ 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;\"\u003eMain Circuit Rated Current\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e21.7 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;\"\u003eControl Circuit Power Input\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eSingle-phase AC200 V to 240 V, 50 Hz \/ 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;\"\u003eControl Circuit Rated Current\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e0.3 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;\"\u003eControl Circuit Power Consumption\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e45 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;\"\u003eInterface Power Supply Requirement\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eDC24 V (±10%), required current capacity 0.5 A (including CN8)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eControl System\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eSinusoidal wave PWM control and current control system\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eDynamic Brake\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eBuilt-in\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eRegenerative Resistor Capacity\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eBuilt-in (130 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;\"\u003eCommunication Functions\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eUSB connection (to PC), RS-422 \/ RS-485 (up to 32 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;\"\u003eSafety Certification Standards\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eEN ISO 13849-1 Category 3 PL e, IEC 61508 SIL 3, EN 62061 SIL CL 3, 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;\"\u003eEnclosure Rating\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eIP20 (Open, force-cooled)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eAmbient Operating Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e0 degC 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;\"\u003eAmbient Operating Humidity\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\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: 10px; font-weight: bold;\"\u003eNet Mass\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e4.0 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;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e5.0 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; font-size: 0.95rem;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #1a365d; text-align: left;\"\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold; color: #1a365d;\"\u003eConnector\/Terminal\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold; color: #1a365d;\"\u003eFunction \/ 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;\"\u003eCN1\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eI\/O signal interface (analog control commands, digital inputs\/outputs)\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;\"\u003eEncoder connection (serial communication feedback interface)\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;\"\u003eRS-422 serial communication interface \/ PC setup utility interface\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eCN8\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eSafe Torque Off (STO) functional safety 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;\"\u003eL1 \/ L2 \/ L3\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eThree-phase 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;\"\u003eL11 \/ L21\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eControl circuit 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;\"\u003eU \/ V \/ W\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eServo motor main power outputs (must match motor phase sequence)\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 general-purpose MR-J4-500A serves as a replacement for legacy MR-J3-500A modules. Note that parameters, terminal block pinouts, and physical depth measurements differ. Use MR Configurator2 to convert legacy MR-J3 parameter files to the newer J4 format before attempting download. Additionally, ensure the encoder resolution parameter corresponds to the correct motor series, as J4-series drives require 22-bit high-resolution motor feedback.\u003c\/p\u003e\n\n\u003ch3\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThis 5.0 kW servo amplifier generates substantial heat under full dynamic duty cycles. When installing multiple units, maintain a horizontal distance of at least 10 mm between adjacent drives and 40 mm clearance above and below the cooling fans. Failure to maintain adequate airflow can trigger AL 30 (Regenerative Error) or AL 50 (Overload) faults. If high duty cycle acceleration\/deceleration sequences are required, use an external, higher capacity regenerative resistor instead of relying on the integrated 130 W resistor.\u003c\/p\u003e\n\n\u003ch3\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1.5rem;\"\u003eFor configurations that do not utilize the Safe Torque Off safety function, the short-circuit connector supplied with the unit must remain firmly seated in the CN8 connector. Leaving this port disconnected will lock the drive in a safe state, displaying safety interlock errors. Always route the motor encoder cable in a separate, shielded conduit away from the main power lines (U, V, W) and the incoming AC power lines to avoid AL 16 (Encoder communication error) caused by electromagnetic noise interference.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 15px; margin-bottom: 1.5rem; color: #9b2c2c;\"\u003e\n  \u003cstrong\u003eCRITICAL WARNING:\u003c\/strong\u003e Ensure all main AC power lines (L1\/L2\/L3) and control power supply inputs (L11\/L21) are fully de-energized before mounting, wiring, or handling the unit. Wait at least 15 minutes after power-off and verify that the charge LED on the front panel has completely extinguished. Residual high voltage on internal bus capacitors poses an immediate risk of lethal electrical shock.\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: 10px;\"\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;\"\u003eMount the servo amplifier vertically on a flat, clean metal panel to maximize thermal heat dissipation and maintain proper internal cooling fan efficiency.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 10px;\"\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;\"\u003eWire the incoming control power supply to L11 and L21, and the main power supply to L1, L2, and L3. Ensure all wire connections meet torque specifications.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 10px;\"\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;\"\u003eConnect the U, V, and W outputs to the corresponding terminals on the servo motor. Do not swap motor phases, as incorrect sequencing can cause erratic rotation or immediate overcurrent trips.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 10px;\"\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;\"\u003eAttach encoder and control signaling lines to CN2 and CN1, ensuring proper shielding connections are terminated to the chassis ground plate.\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Mitsubishi Electric","offers":[{"title":"Default Title","offer_id":53102130725227,"sku":"MR-J4-500A","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/MR-J4-500A-xys1wsw243m.png?v=1776137877","url":"https:\/\/www.plcprotech.com\/products\/mitsubishi-electric-mr-j4-500a-melservo-j4-series-1-axis-servo-amplifier","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}