{"product_id":"mitsubishi-electric-mr-j2s-350b-melservo-j2-super-servo-amplifier","title":"Mitsubishi Electric MR-J2S-350B MELSERVO J2-Super Servo Amplifier","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eExecuting high-precision position and velocity profiles, the \u003cstrong\u003eMitsubishi Electric MR-J2S-350B\u003c\/strong\u003e is a 3.5 kW digital servo amplifier designed for seamless integration within the \u003cstrong\u003eMELSERVO J2-Super\u003c\/strong\u003e control architecture. This module operates on a high-speed \u003cstrong\u003eSSCNET\u003c\/strong\u003e (Servo System Controller Network) synchronous serial bus, facilitating real-time motion synchronization and eliminating complex analog command wiring. Engineered with a sinusoidal PWM control and current control system, it provides optimal torque response and minimal thermal output. The drive incorporates a built-in dynamic brake for emergency stopping cycles, while its advanced internal protection networks continuously monitor operational parameters to shield both the amplifier and the connected low-inertia or medium-inertia rotary servomotor from electrical or thermal overload conditions.\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\u003eSSCNET Bus Integration:\u003c\/strong\u003e Uses fiber-optic or high-speed serial communications to drastically reduce cabling and mitigate electromagnetic noise interferences.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eHigh Response Rate:\u003c\/strong\u003e Delivers a speed frequency response of 550 Hz or greater, satisfying high-speed positioning requirements.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eComprehensive Safety Shutdowns:\u003c\/strong\u003e Integrates overcurrent, regenerative overvoltage, overload, and absolute encoder fault diagnostics directly into the control loop.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eSinusoidal PWM Control:\u003c\/strong\u003e Optimizes current delivery to reduce motor torque ripple and thermal losses during continuous duty cycles.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eForced-Air Cooling:\u003c\/strong\u003e Integrated cooling fan maintains optimal power stage temperatures under demanding ambient 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 style=\"margin-bottom: 0.5rem;\"\u003eHigh-speed multi-axis packaging machinery requiring microsecond synchronization.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003eAutomated pick-and-place assembly lines utilizing high-resolution absolute feedback.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003eMetalworking CNC feed axes requiring robust positioning torque.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003ePrecision semiconductor handling equipment operating in cleanroom panel spaces.\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=\"text-align: left; padding: 0.75rem; font-weight: bold;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 0.75rem; font-weight: bold;\"\u003eSpecification Values\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: 0.75rem; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eMitsubishi Electric\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eModel Series\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eMELSERVO J2-Super (MR-J2S Series)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eRated Power Output\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e3.5 kW\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003ePrimary Input Voltage\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e3-phase 200 to 230 VAC, 50\/60 Hz\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003ePermissible Voltage Fluctuation\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e3-phase 170 to 253 VAC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003ePermissible Frequency Fluctuation\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e+\/- 5%\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eControl Method\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\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: 0.75rem; font-weight: bold;\"\u003eDynamic Brake\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eBuilt-in\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eEnclosure Rating\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eIP00 (Open structure, fan-cooled)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eOperating Temperature Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e0 to 55 degC (no freezing)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eStorage Temperature Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e-20 to 65 degC (no freezing)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eAmbient Humidity Limit\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e90% RH maximum (non-condensing)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eMaximum Elevation\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e1000m 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: 0.75rem; font-weight: bold;\"\u003eMaximum Oscillation Tolerance\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e5.9 m\/s² maximum\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\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; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0;\"\u003e\n        \u003cth style=\"text-align: left; padding: 0.75rem; font-weight: bold;\"\u003eConnector \/ Terminal\u003c\/th\u003e\n        \u003cth style=\"text-align: left; padding: 0.75rem; font-weight: bold;\"\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: 0.75rem; font-weight: bold;\"\u003eL1 \/ L2 \/ L3\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eMain 3-phase AC power input terminal block\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eL11 \/ L21\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eControl circuit power supply input (single-phase)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eU \/ V \/ W\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eThree-phase motor output to servomotor winding\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eCN1A\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eSSCNET bus connection input port (from system controller or previous axis)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eCN1B\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eSSCNET bus connection output port (to downstream axis or terminal connector)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eCN2\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eFeedback encoder connection port (for linear\/rotary absolute or incremental signals)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eCN3\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eRS-232C \/ RS-422 serial interface port (for parameter tuning via MR Configurator)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eP \/ C \/ D\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eExternal regenerative brake resistor interface 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\n\u003ch3\u003eAlternative Models \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe \u003cstrong\u003eMR-J2S-350B\u003c\/strong\u003e relies specifically on the legacy \u003cstrong\u003eSSCNET\u003c\/strong\u003e protocol. It cannot be directly swapped with newer \u003cstrong\u003eMR-J4-350B\u003c\/strong\u003e or \u003cstrong\u003eMR-J5-350B\u003c\/strong\u003e units without incorporating the \u003cstrong\u003eMR-J4-T20\u003c\/strong\u003e SSCNET compatibility interface or converting the system network topology to \u003cstrong\u003eSSCNET III\/H\u003c\/strong\u003e. To retain existing fiber routing without controller modifications, ensure direct MR-J2S replacement. When substituting from analog-command models (e.g., MR-J2S-350A), please note that the control board, control cables, and PLC output modules must be completely reconfigured to accommodate the network-style command structure.\u003c\/p\u003e\n\n\u003ch3\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eBecause this amplifier has an \u003cstrong\u003eIP00\u003c\/strong\u003e open-frame physical construction, it must be mounted inside a sealed, forced-ventilation or air-conditioned electrical control cabinet. Infiltration of conductive metallic dust, oil mists, or humidity will cause immediate catastrophic failure of the main high-voltage DC bus capacitors. If operating under high-frequency start-stop cycles, monitor the thermal capacity of the internal regenerative resistor; if fault code \u003cstrong\u003eAL.30\u003c\/strong\u003e (Regenerative Error) is persistently triggered, an external cooling fan must be directed at the heat sinks, or a high-capacity external regenerative option must be wired between terminals P and C with the factory-installed jumper wire removed.\u003c\/p\u003e\n\n\u003ch3\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen routing \u003cstrong\u003eSSCNET\u003c\/strong\u003e optical fiber cables to the \u003cstrong\u003eCN1A\u003c\/strong\u003e and \u003cstrong\u003eCN1B\u003c\/strong\u003e ports, do not violate the minimum physical bend radius of 25mm. Tight kinks or sharp bends will degrade optical transmission, resulting in intermittent \u003cstrong\u003eAL.16\u003c\/strong\u003e (Encoder Communications Error) or network dropout states. For absolute position configurations, remember to connect a fresh \u003cstrong\u003eMR-BAT\u003c\/strong\u003e lithium battery unit to the designated port. Replacing the battery must be performed with the control circuit power supply (L11\/L21) energized; failing to power the drive control board during battery swaps will result in immediate erasure of the reference origin position, requiring a full re-homing calibration sequence.\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  \u003cp style=\"color: #9b2c2c; margin: 0; font-weight: bold;\"\u003eCRITICAL WARNING: HIGH VOLTAGE RISK\u003c\/p\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0.5rem 0 0 0;\"\u003eIsolate all primary three-phase AC power lines before initiating mechanical or electrical installation. After de-energizing, wait a minimum of 15 minutes to allow internal high-voltage DC bus capacitors to discharge to safe threshold levels. Measure terminal voltage across the P and N terminal points with a calibrated digital multimeter before contacting wiring or screw terminals.\u003c\/p\u003e\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=\"display: flex; align-items: center; justify-content: center; background-color: #2b6cb0; color: #ffffff; min-width: 2rem; height: 2rem; border-radius: 50%; font-weight: bold;\"\u003e1\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eMount the servo amplifier vertically on a flat, unpainted metal panel to maximize thermal dissipation and ground surface contact. Leave a minimum space of 40mm at the top\/bottom and 10mm on both sides for sufficient airflow.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"display: flex; align-items: center; justify-content: center; background-color: #2b6cb0; color: #ffffff; min-width: 2rem; height: 2rem; border-radius: 50%; font-weight: bold;\"\u003e2\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eConnect the protective earth (PE) ground terminal directly to the panel backplane with a heavy-gauge, low-impedance conductor. Do not daisy-chain ground lines with other high-power drives or industrial power sources.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"display: flex; align-items: center; justify-content: center; background-color: #2b6cb0; color: #ffffff; min-width: 2rem; height: 2rem; border-radius: 50%; font-weight: bold;\"\u003e3\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003eWire the control input power terminals (L11, L21) separate from the main drive power feed (L1, L2, L3) via an independent circuit breaker, maintaining diagnostic feedback capabilities during main power-down safety shutdowns.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"display: flex; align-items: center; justify-content: center; background-color: #2b6cb0; color: #ffffff; min-width: 2rem; height: 2rem; border-radius: 50%; font-weight: bold;\"\u003e4\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748;\"\u003ePlug in the motor encoder cable to the CN2 port, securing the retention screws fully to prevent intermittent encoder feedback loss due to machinery vibration.\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Mitsubishi Electric","offers":[{"title":"Default Title","offer_id":53102154416491,"sku":"MR-J2S-350B","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/MR-J2S-350B-lipqk4tufwu.png?v=1776137830","url":"https:\/\/www.plcprotech.com\/pt\/products\/mitsubishi-electric-mr-j2s-350b-melservo-j2-super-servo-amplifier","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}