{"product_id":"mitsubishi-electric-fr-a840-37-1-fr-a800-series-variable-frequency-drive","title":"FR-A840-37-1 | MITSUBISHI | Variateur de Vitesse\/Fréquence (VSD\/VFD) \/ Onduleur avec terminaison FM","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eEngineered to meet the demands of heavy-duty industrial motor applications, the \u003cstrong\u003eMitsubishi Electric FR-A840-37-1\u003c\/strong\u003e is a high-performance, three-phase \u003cstrong\u003eVariable Frequency Drive (VFD)\u003c\/strong\u003e belonging to the premier FR-A800 Series. Designed for robust speed and torque control, this inverter features an integrated \u003cstrong\u003eFM terminal\u003c\/strong\u003e configuration for high-precision analog pulse train monitoring. Offering seamless integration into existing control architectures, the unit features built-in \u003cstrong\u003eModbus RTU\u003c\/strong\u003e protocols and multi-point RS-485 serial interfaces, making it an excellent fit for demanding automation setups requiring exact velocity tracking and high starting torque.\u003c\/p\u003e\n\n\u003ch3\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\u003eReal Sensorless Vector Control (RSVC):\u003c\/strong\u003e Delivers exceptional torque performance at near-zero speeds without requiring an external encoder.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlexible Output Frequencies:\u003c\/strong\u003e Supports a wide operating range from 0.2 Hz up to 590 Hz to handle diverse high-speed industrial machinery.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFM Control Terminals:\u003c\/strong\u003e Outfitted with dedicated FM pulse-train and analog voltage monitoring channels (0-10Vdc) for precise feedback loop integration.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilt-In RS-485 Interface:\u003c\/strong\u003e Built-in support for RS-422 and RS-485 multi-drop communication running native Modbus RTU protocols.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIP00 Open-Type Chassis:\u003c\/strong\u003e Built for optimal space-saving layouts within localized, climate-controlled industrial control panels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIndustrial Applications\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\u003eHigh-Inertia Centrifuges:\u003c\/strong\u003e Manages regenerative energy and deceleration profiles safely.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Conveyor Systems:\u003c\/strong\u003e Provides high breakaway torque for starting fully loaded belts.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtruders and Mixers:\u003c\/strong\u003e Maintains constant torque control across varying material viscosity ranges.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustrial Fan \u0026amp; Pump Arrays:\u003c\/strong\u003e Reduces energy consumption through precise affinity-law speed regulation.\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;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003eValue \/ Specification\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 Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eFR-A840-37-1\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\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eFR-A800 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;\"\u003eApplicable Motor Capacity\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e37 kW (50 HP)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eSupply Voltage (AC)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e3-Phase 380Vac to 500Vac (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;\"\u003eOutput Phase\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e3-Phase AC\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 Frequency Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e0.2 Hz to 590 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;\"\u003eCommunication Protocols\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eModbus RTU, RS-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: 10px; font-weight: bold;\"\u003eAnalog Output Channels\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e1 x Analog Output (0-10Vdc) via FM Terminal\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eDegree of Protection\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eIP00 (Open Type)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eCountry of Origin\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eJapan\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;\"\u003e43.0 kg (94.8 lbs)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003ePackage Dimensions (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e490 mm x 300 mm x 250 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;\"\u003eTerminal Block Designation\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; text-align: left; font-weight: bold;\"\u003eFunctional Circuit 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;\"\u003eR\/L1, S\/L2, T\/L3\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e3-Phase Main AC Power Supply Input\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;\"\u003e3-Phase Variable Frequency Output to Motor\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eFM\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003ePulse train monitor \/ Analog signal output (0-10Vdc)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eTXD+ \/ TXD- \/ RXD+ \/ RXD-\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eRS-485 \/ Modbus RTU Communication interfaces\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eSD\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eCommon Terminal for External Analog Command Reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eAlternative Models \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe \u003cstrong\u003eFR-A840-37-1\u003c\/strong\u003e serves as a direct functional replacement for the older generation \u003cstrong\u003eFR-A740-37K\u003c\/strong\u003e drive variants. If migrating from the A700 series, verify panel space clearances, as physical depths and wiring terminal profiles differ slightly. Configuration and parameter profiles can be fully imported and converted using Mitsubishi Electric's \u003cstrong\u003eFR Configurator2\u003c\/strong\u003e software platform to minimize deployment downtime.\u003c\/p\u003e\n\n\u003ch3\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWith a high power rating of 37 kW (50 HP), this drive generates significant heat during continuous full-load operations. It requires installation inside a dedicated, well-ventilated enclosure with a minimum of 100mm clearance on both the top and bottom of the unit. When using the drive in high-duty cycle applications, ensure external braking resistors are sized correctly to prevent overvoltage tripping (E.OV3) during regenerative braking events.\u003c\/p\u003e\n\n\u003ch3\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eTo mitigate electromagnetic interference (EMI) issues, run the 3-phase output motor connections (U, V, W) in continuous shielded cable, grounding the shield at both the drive enclosure and the motor terminal box. When implementing serial communications, ensure parameter 117 (Station Number) and parameter 118 (Baud Rate) are mapped correctly prior to initiating cyclic polling over the Modbus network.\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; color: #9b2c2c;\"\u003e\n  \u003cstrong\u003eCRITICAL WARNING:\u003c\/strong\u003e Hazardous voltages remain present inside the drive capacitor bank for up to 10 minutes after main power is disconnected. Always verify that the charge lamp is fully extinguished and use a calibrated digital multimeter to verify zero DC bus voltage before initiating termination work.\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=\"background-color: #2b6cb0; color: #ffffff; width: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eMount the IP00 chassis vertically onto a flat, non-flammable back panel using M6 or M8 mounting screws to allow unobstructed convection currents.\u003c\/p\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: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eConnect the physical system ground to the PE terminals before terminating the main input power lines (R\/L1, S\/L2, T\/L3).\u003c\/p\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: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eRun control signals and analog feedback loops (FM terminal block) through separate metal conduits isolated from heavy AC power wiring.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Mitsubishi Electric","offers":[{"title":"Default Title","offer_id":53102128759147,"sku":"FR-A840-37-1","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/fr-a840-37-1-qe5ggttjg0g.png?v=1776137471","url":"https:\/\/www.plcprotech.com\/fr\/products\/mitsubishi-electric-fr-a840-37-1-fr-a800-series-variable-frequency-drive","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}