{"product_id":"mitsubishi-electric-fr-a840-22k-1-fr-a800-series-variable-frequency-drive","title":"Mitsubishi Electric FR-A840-22K-1 FR-A800 Series Variable Frequency Drive","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nDelivering precise speed and torque regulation for heavy-duty industrial machinery, the \u003cstrong\u003eMitsubishi Electric FR-A840-22K-1\u003c\/strong\u003e is a high-performance three-phase 400V class variable frequency drive designed for motors up to \u003cstrong\u003e22 kW\u003c\/strong\u003e. As part of the flagship FR-A800 series, this inverter features an integrated \u003cstrong\u003eFM pulse train output terminal\u003c\/strong\u003e (Terminal FM) for exact system monitoring and coordination. Equipped with advanced Real Sensorless Vector Control and built-in PLC capabilities, this drive optimizes motor performance in demanding dynamics across complex automation networks.\n\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\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 Control Algorithms:\u003c\/strong\u003e Supports Real Sensorless Vector Control, Vector Control, V\/F Control, and Advanced Magnetic Flux Vector Control.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlexible Overload Ratings:\u003c\/strong\u003e Dual-specification ratings optimize the inverter for both light-duty (LD) and normal\/heavy-duty (ND\/HD) operating environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEmbedded PLC Functionality:\u003c\/strong\u003e Allows custom logic control, input\/output configuration, and localized sequencing directly on the drive without external controller hardware.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntegrated Safety Function:\u003c\/strong\u003e Features Safe Torque Off (STO) emergency stop capabilities complying with EN ISO 13849-1 Category 3 \/ PLd and IEC 61508 SIL2.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComprehensive Connectivity:\u003c\/strong\u003e Standard RS-485 interface supporting Modbus-RTU protocol alongside multiple optional network expansion card slots.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\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\u003eHoisting and Cranes:\u003c\/strong\u003e High-starting torque execution and mechanical brake sequencing for safe, vertical lift controls.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExtruders and Mixers:\u003c\/strong\u003e High torque stability at ultra-low speeds to prevent material clotting and mechanical stalls.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Inertia Fans and Blowers:\u003c\/strong\u003e Smart deceleration control and catch-on-the-fly functionality for spinning loads.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWinding and Tension Systems:\u003c\/strong\u003e Real-time torque limiters and precise speed regulation for continuous web handling.\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;\"\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold; width: 35%;\"\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 Reference\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eFR-A840-22K-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;\"\u003eApplicable Motor Capacity\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e22 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;\"\u003eOutput Capacity\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e34 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;\"\u003eRated Output Current\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e44 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 Rated Voltage\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eThree-phase 380 to 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;\"\u003eInput Voltage Class\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eThree-phase 400 V class (380 to 500 V, 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;\"\u003eMonitoring Terminals\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eTerminal FM (Pulse train output)\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;\"\u003eSerial Communications\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eRS-422, RS-485, RS-232 (RJ45 connection)\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;\"\u003eSafety Certification\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;\"\u003eProduct Dimensions\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e400 mm (H) x 250 mm (W) x 190 mm (D)\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\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e16.0 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;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0;\"\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; font-weight: bold; width: 30%;\"\u003eTerminal Group\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; font-weight: bold;\"\u003eFunction \u0026amp; Terminal 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;\"\u003ePower Input\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eR\/L1, S\/L2, T\/L3: Connects to three-phase commercial AC 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;\"\u003eInverter Output\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eU, V, W: Direct connection to three-phase induction or PM motors.\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;\"\u003eAnalog Control\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eTerminal 10 (DC 10V supply), Terminal 2 (0-5V \/ 0-10V input), Terminal 4 (4-20mA input), Terminal 5 (Analog common).\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;\"\u003ePulse Output\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eTerminal FM: High-speed transistor pulse train output mapped to operational variables.\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;\"\u003eDigital Inputs\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eSTF (Forward rotation start), STR (Reverse rotation start), SD (Contact input common).\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\u003ch4 style=\"color: #1a365d; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nThe FR-A840-22K-1 directly succeeds the older FR-A740-22K series. It shares similar mounting footprint spacing; however, check clearance depth due to the cooling fan assembly design. If migrating parameters using FR Configurator2 software, note that Parameter 54 (FM terminal function selection) must be carefully calibrated as the pulse train output characteristic curve may require scaling adjustments to match legacy analog panel meters.\n\u003c\/p\u003e\n\n\u003ch4 style=\"color: #1a365d; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nWhen running this drive in low-speed, high-torque configurations (such as continuous extrusion or winding), motor overheating is possible due to reduced native fan cooling. Under these conditions, specify an inverter-duty motor with independent force-cooling and configure Parameter 9 (Electronic thermal O\/L) to match the external cooling profile. Additionally, if the system triggers E.OV3 (Overvoltage during deceleration) faults during cycling, ensure a dynamic braking resistor is installed and Parameter 30 (Regenerative function selection) is enabled.\n\u003c\/p\u003e\n\n\u003ch4 style=\"color: #1a365d; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nTo avoid electromagnetic interference with low-voltage sensor cables, ensure the motor cables are shielded and correctly grounded via a 360-degree high-frequency ground clamp at the cabinet entry plate. If establishing multi-drop RS-485 control via the integrated RJ45 ports, toggle the termination resistor slide switch (located behind the main control panel) to the \"100 ohm\" position only on the final physical node of the network bus.\n\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  \u003cstrong style=\"color: #9b2c2c; display: block; margin-bottom: 0.5rem;\"\u003eCRITICAL WARNING: ELECTRICAL DISCHARGE RISK\u003c\/strong\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0;\"\u003e\n    Isolate all primary three-phase electrical input feeds before attempting installation or terminal wiring. Internal DC bus capacitors contain lethal residual charge. Wait at least 10 minutes after disconnecting incoming mains power and verify the voltage across terminals P\/+ and N\/- is under 45 VDC using a calibrated multimeter before initiating maintenance operations.\n  \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; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem;\"\u003e1\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 2px;\"\u003e\n      \u003cstrong\u003eMechanical Mounting:\u003c\/strong\u003e Mount the drive vertically in a clean, dust-controlled electrical cabinet. Ensure a minimum clearance of 50 mm on both sides and 100 mm above and below the chassis for adequate airflow and thermal convection.\n    \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; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem;\"\u003e2\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 2px;\"\u003e\n      \u003cstrong\u003ePower \u0026amp; Motor Wiring:\u003c\/strong\u003e Connect the three-phase utility supply to inputs R\/L1, S\/L2, and T\/L3. Route shielded motor cables to terminals U, V, and W, grounding the shield on both the drive ground plate and the motor housing.\n    \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; min-width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem;\"\u003e3\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; padding-top: 2px;\"\u003e\n      \u003cstrong\u003eI\/O Configuration:\u003c\/strong\u003e Wire the start commands (STF\/STR) and emergency stop (STO) safety circuit. Configure terminal FM to the desired monitoring target via parameter mappings using the built-in operating panel or PC commissioning tool.\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Mitsubishi Electric","offers":[{"title":"Default Title","offer_id":53102127612267,"sku":"FR-A840-22K-1","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/fr-a840-22k-1-hwg3f2qdoic.png?v=1776137467","url":"https:\/\/www.plcprotech.com\/de\/products\/mitsubishi-electric-fr-a840-22k-1-fr-a800-series-variable-frequency-drive","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}