{"product_id":"mitsubishi-electric-fr-a840-1-5k-1-fr-a800-series-variable-frequency-drive","title":"Mitsubishi Electric FR-A840-1.5K-1 FR-A800 Series Variable Frequency Drive","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eDesigned for high-performance industrial motor control, the \u003cstrong\u003eFR-A840-1.5K-1\u003c\/strong\u003e by \u003cstrong\u003eMitsubishi Electric\u003c\/strong\u003e operates as a premium variable frequency drive within the FR-A800 series. This high-capacity inverter delivers exceptional speed and torque control for \u003cstrong\u003e1.5 kW\u003c\/strong\u003e three-phase motors, relying on advanced real-time sensorless vector control algorithms. Built to withstand demanding manufacturing environments, the unit integrates standard serial communication architectures, high-efficiency cooling, and robust overcurrent protection to ensure continuous field operation and minimize plant downtime.\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\u003eReal-time sensorless vector control capabilities for ultra-precise speed and torque response.\u003c\/li\u003e\n  \u003cli\u003eBuilt-in RS-485, RS-422, and RS-232 serial communication interfaces supporting Modbus RTU protocols.\u003c\/li\u003e\n  \u003cli\u003eDual overload rating tolerance designed for versatile normal duty (ND) and light duty (LD) load characteristics.\u003c\/li\u003e\n  \u003cli\u003eEmbedded safety-related stop function conforming to international industrial standards.\u003c\/li\u003e\n  \u003cli\u003eIntegrated EMC filter to minimize electromagnetic noise and safeguard adjacent control instrumentation.\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\u003eMaterial handling conveyor lines requiring precise acceleration and deceleration profiles.\u003c\/li\u003e\n  \u003cli\u003eCentrifugal pump systems and industrial fan setups utilizing variable torque optimization.\u003c\/li\u003e\n  \u003cli\u003eExtrusion lines and continuous mixers within chemical and plastics processing facilities.\u003c\/li\u003e\n  \u003cli\u003eMachine tool spindles requiring stable speed holding under variable mechanical loads.\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; text-align: left;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2d3748;\"\u003e\n        \u003cth style=\"padding: 8px;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 8px;\"\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: 8px; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eMitsubishi Electric\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eModel Reference\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eFR-A840-1.5K-1\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eSeries Name\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eFR-A800\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eInput Voltage Class\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eThree-phase 400 V (380 to 500 VAC, 50\/60 Hz)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eApplicable Motor Capacity\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e1.5 kW\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eOutput Rated Current\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e4.0 A\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eOutput Rated Capacity\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e3.0 kVA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eCommunication Interfaces\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eRS-232, RS-422, RS-485 (Mitsubishi \/ Modbus RTU)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eStandards \u0026amp; Approvals\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eCE, UL, cUL, RoHS\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eEnclosure Rating\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eIP20\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003ePhysical Dimensions (H x W x D)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e260 mm x 150 mm x 140 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003e4.5 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; text-align: left;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2d3748;\"\u003e\n        \u003cth style=\"padding: 8px;\"\u003eTerminal Designation\u003c\/th\u003e\n        \u003cth style=\"padding: 8px;\"\u003eCircuit \/ Function 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: 8px; font-weight: bold;\"\u003eR\/L1, S\/L2, T\/L3\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eMain Three-Phase AC Power Input Connection\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eU, V, W\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eThree-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: 8px; font-weight: bold;\"\u003eP\/+, PR\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eBraking Resistor Connection Terminals\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eSTF \/ STR\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eForward Run Start \/ Reverse Run Start Digital Inputs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003eSD\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eCommon Terminal for Digital Inputs and 24 VDC Power source\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 8px; font-weight: bold;\"\u003e2, 4, 5\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px;\"\u003eAnalog Frequency Setting Inputs (Voltage \/ Current) \u0026amp; Common Ground\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 FR-A840-1.5K-1 serves as the direct technological replacement for legacy FR-A740-1.5K series drive models. While the footprint and control terminals line up similarly, please note that parameter structures have expanded. When utilizing FR Configurator2 software to import existing parameter files from A700 series models, a careful verification of acceleration-deceleration curve parameters and motor tuning maps must be performed to ensure smooth commissioning.\u003c\/p\u003e\n\n\u003ch3\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eDuring integration inside IP54 enclosed control panels, local heat dissipation must be handled correctly. The drive requires a minimum space clear-zone of 50 mm above and below the chassis for unimpeded natural airflow. In applications operating continuously at low speeds under high-torque demand, the integrated motor fan will lose efficiency. Always implement an external forced cooling fan on the motor or utilize inverter-duty rated motors to prevent winding thermal trips (E.THT faults).\u003c\/p\u003e\n\n\u003ch3\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1.5rem;\"\u003eEnsure that Parameter 79 (Operation Mode Selection) is explicitly set to match your system master. For example, setting Pr.79 to \"2\" locks control logic exclusively to the external terminals, bypassing the PU keypad. For RS-485 serial communication daisy chains, apply a terminating resistor on the final physical node and run standard double-shielded twisted pair (STP) control cables. The shield must be terminated strictly at a single point (PE ground at the cabinet entry) to prevent destructive ground loops.\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; font-weight: bold; margin: 0 0 0.5rem 0;\"\u003eCRITICAL WARNING\u003c\/p\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0;\"\u003eIsolate all main power lines prior to physical cabinet mounting or control terminal wiring. Once input power is switched off, wait a minimum of 10 minutes for the internal DC bus capacitors to fully discharge. Always measure the DC bus voltage across terminals P\/+ and N\/- using a calibrated digital multimeter to verify the potential is below 50 VDC before initiating touch-sensitive electrical tasks.\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=\"display: inline-flex; align-items: center; justify-content: center; width: 24px; height: 24px; border-radius: 50%; background-color: #2b6cb0; color: #ffffff; font-weight: bold; margin-right: 12px; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eSecurely mount the variable speed drive on a rigid, vibration-resistant vertical panel backplate using appropriate M5 bolts.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"display: inline-flex; align-items: center; justify-content: center; width: 24px; height: 24px; border-radius: 50%; background-color: #2b6cb0; color: #ffffff; font-weight: bold; margin-right: 12px; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eConnect the physical PE protective ground terminal directly to the central cabinet earth bar before wiring power supply lines.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"display: inline-flex; align-items: center; justify-content: center; width: 24px; height: 24px; border-radius: 50%; background-color: #2b6cb0; color: #ffffff; font-weight: bold; margin-right: 12px; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eTerminate the three-phase power lines at R\/L1, S\/L2, and T\/L3, ensuring correct phase configuration, and route the motor outputs from U, V, and W.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start;\"\u003e\n    \u003cdiv style=\"display: inline-flex; align-items: center; justify-content: center; width: 24px; height: 24px; border-radius: 50%; background-color: #2b6cb0; color: #ffffff; font-weight: bold; margin-right: 12px; flex-shrink: 0;\"\u003e4\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eSecure control signal wiring away from the high-voltage power lines inside separate wire ducting lanes to prevent inductive cross-talk.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Mitsubishi Electric","offers":[{"title":"Default Title","offer_id":53102149108075,"sku":"FR-A840-1.5K-1","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/fr-a840-1.5k-1-nruqrgxicb2.png?v=1776137462","url":"https:\/\/www.plcprotech.com\/ru\/products\/mitsubishi-electric-fr-a840-1-5k-1-fr-a800-series-variable-frequency-drive","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}