{"product_id":"mitsubishi-electric-fr-a840-11k-1-fr-a800-series-variable-frequency-drive","title":"FR-A840-11K-1 | MITSUBISHI | Variateur de vitesse\/fréquence (VSD\/VFD) \/ Onduleur avec terme FM","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eRegulating three-phase asynchronous and synchronous motors in demanding industrial environments, the \u003cstrong\u003eMitsubishi Electric FR-A840-11K-1\u003c\/strong\u003e is a high-performance FR-A800 series variable frequency drive engineered for high-torque applications. This inverter features an integrated \u003cstrong\u003eFM pulse train output terminal\u003c\/strong\u003e, delivering real-world precision in speed and torque regulation across a wide 400V input range. Equipped with dynamic torque vector control and built-in PLC functionality, it coordinates complex motion sequences directly at the drive level, minimizing communication latency and system overhead.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem;\"\u003eKey Features\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\u003eAdvanced Vector Control:\u003c\/strong\u003e Supports Real Sensorless Vector (RSV) control and closed-loop vector control for exceptional speed accuracy and starting torque.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFM Pulse Output Terminal:\u003c\/strong\u003e Provides a high-speed pulse train output channel for accurate monitoring of operating frequency, output current, or motor speed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntegrated PLC Engine:\u003c\/strong\u003e Allows custom control algorithms, localized IO handling, and decentralized logic control without an external controller.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-Protocol Serial Interface:\u003c\/strong\u003e Built-in RS-485, RS-232, and RS-422 networks provide robust integration options for existing SCADA and DCS configurations.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComprehensive Protection:\u003c\/strong\u003e Built-in features protect against overcurrent, overvoltage, motor overload, and heatsink overheating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem;\"\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eHeavy-duty cranes, hoists, and material handling systems requiring high static starting torque.\u003c\/li\u003e\n  \u003cli\u003eIndustrial fan, blower, and centrifugal pumping configurations with quadratic load profiles.\u003c\/li\u003e\n  \u003cli\u003eExtrusion lines, compounding systems, and material mixing equipment.\u003c\/li\u003e\n  \u003cli\u003eWinding and tension-controlled unwinding systems in paper, textile, and metal processing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem;\"\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; font-size: 0.95rem;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #1a365d;\"\u003e\n        \u003cth style=\"padding: 0.75rem; font-weight: bold;\"\u003eSpecification\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem; font-weight: bold;\"\u003eValue\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 Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eFR-A840-11K-1\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;\"\u003eProduct Series\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eFR-A800 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;\"\u003eApplicable Motor Capacity\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e11 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;\"\u003eInput Voltage Class\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eThree-Phase 400 V Class\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 Input Power Supply\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eThree-phase 380 to 500 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: 0.75rem; font-weight: bold;\"\u003eOutput Rated Current\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e23 A\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;\"\u003eOutput Capacity\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e18 kVA\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;\"\u003eOutput Configuration\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eThree-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;\"\u003eExternal Communications\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eRS-232, RS-422, RS-485\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;\"\u003eStandards\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eCE, UL, cUL, RoHS Compliant\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 Protection Rating\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eIP20 (Open Type)\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;\"\u003eDimensions (W x H x D)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e220 mm x 300 mm x 190 mm\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;\"\u003e9.5 kg\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: 0.25rem;\"\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; font-size: 0.95rem;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #1a365d;\"\u003e\n        \u003cth style=\"padding: 0.75rem; font-weight: bold;\"\u003eTerminal \/ Connector\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem; font-weight: bold;\"\u003eCircuit Assignment \/ Function Description\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;\"\u003eR\/L1, S\/L2, T\/L3\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eMain AC power input terminals (Three-phase 380-500 V)\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;\"\u003eVariable frequency three-phase output to the induction or PM motor\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;\"\u003eFM\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003ePulse train output terminal (Monitors frequency, current, or voltage)\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;\"\u003eSD\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eCommon terminal for contact input and 24 V DC external power supply\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;\"\u003eSTF \/ STR\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eForward Rotation Start \/ Reverse Rotation Start control inputs\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: 0.25rem;\"\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe FR-A840-11K-1 is the direct technological successor to the legacy FR-A740-11K series in 400V industrial networks. When transitioning legacy machinery to the FR-A800 architecture, parameter lists can be converted using Mitsubishi's FR Configurator2 software. Although physical mounting dimensions are compatible, always cross-reference control terminal blocks as the FR-A800 series utilizes spring clamp terminals for control wiring compared to the screw terminals on older models.\u003c\/p\u003e\n\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen deploying the drive in sealed electrical panels, proper thermal management is critical. The unit generates approximately 330 Watts of heat under full-load conditions. Ensure a minimum lateral spacing of 50 mm and vertical clearance of 100 mm from adjacent equipment to avoid thermal derating. If the drive is run at high carrier frequencies (exceeding 14.5 kHz) to minimize motor acoustic noise, the rated output current must be derated by 15 percent to prevent premature thermal fault (E.THT) trips.\u003c\/p\u003e\n\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eFor motor applications requiring high starting torque at low speeds, execute an offline auto-tuning sequence (Parameter 96 set to 1) with the motor completely uncoupled. This maps the stator resistance and transient inductance, optimizing the dynamic torque vector control algorithms. Additionally, to avoid high-frequency capacitive leakage currents and EMC disruption on analog feedback loops, always use symmetrically shielded motor power cables, and ground the shielding braid 360 degrees directly at the drive grounding clamp.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem;\"\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:\u003c\/p\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0.5rem 0 0 0; font-size: 0.95rem;\"\u003eRisk of electric shock and lethal discharge. Disconnect all main power inputs (R\/L1, S\/L2, T\/L3) before opening the terminal cover or executing any maintenance. Wait at least 10 minutes for internal capacitors to discharge completely, and verify that the charge lamp is fully extinguished prior to working on internal electrical terminals.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 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; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 2px;\"\u003eMount the inverter vertically to a flat, rigid vertical wall or internal panel backplate using appropriate M5 mounting fasteners. Do not install the unit horizontally or upside down.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 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; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 2px;\"\u003eConnect the input power lines to R\/L1, S\/L2, and T\/L3 terminals. Connect the motor supply cables to U, V, and W terminals. Ensure proper phase configuration and torque connections. Do not apply AC power to the motor output terminals.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 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; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 2px;\"\u003eEstablish a solid low-impedance safety ground connection utilizing the ground terminal provided on the chassis. Do not daisy-chain ground lines with nearby equipment.\u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 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; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e4\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 2px;\"\u003eWire control signals (such as start\/stop commands and the FM analog monitoring output) using shielded twisted-pair cables, keeping control routing physically isolated from high-voltage motor lines.\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Mitsubishi Electric","offers":[{"title":"Default Title","offer_id":53102133444971,"sku":"FR-A840-11K-1","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/fr-a840-11k-1-plfehuvrhuc.png?v=1776137464","url":"https:\/\/www.plcprotech.com\/fr\/products\/mitsubishi-electric-fr-a840-11k-1-fr-a800-series-variable-frequency-drive","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}