{"product_id":"mitsubishi-electric-fr-a840-18-5k-1-fr-a800-series-variable-frequency-drive","title":"FR-A840-18.5K-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 induction and permanent magnet synchronous motors in heavy industrial networks is the primary function of the \u003cstrong\u003eMitsubishi Electric FR-A840-18.5K-1\u003c\/strong\u003e variable frequency drive. This high-performance inverter from the elite FR-A800 series delivers an output capacity of \u003cstrong\u003e18.5 kW\u003c\/strong\u003e under Normal Duty (ND) conditions, offering superior speed and torque vector control. Operating on a 400V input voltage class, it integrates a specialized \u003cstrong\u003eFM terminal\u003c\/strong\u003e configuration for high-speed pulse train monitoring. Embedded with standard RS-485, RS-422, and RS-232 serial interfaces, this unit supports smooth automation network integration while maintaining strict compliance with CE, UL, and cUL regulatory requirements.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 20px; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eAdvanced Real Sensorless Vector Control and Full Vector Control when paired with encoder feedback.\u003c\/li\u003e\n  \u003cli\u003eBuilt-in FM terminal configured for high-precision pulse train monitor output.\u003c\/li\u003e\n  \u003cli\u003eMultiple integrated serial interfaces supporting RS-485, RS-422, and Modbus-RTU protocols as standard.\u003c\/li\u003e\n  \u003cli\u003eDual overload rating capacity: 150% overload for 60 seconds (Normal Duty) and 120% overload for 60 seconds (Light Duty).\u003c\/li\u003e\n  \u003cli\u003eIntegrated EMC filter reduces high-frequency electrical noise to enhance surrounding system reliability.\u003c\/li\u003e\n  \u003cli\u003eBuilt-in safety-stop function compliant with EN ISO 13849-1 Category 3\/PLd and IEC 61508 SIL2 standards.\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: 20px; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eHeavy-duty extrusion and compounding systems.\u003c\/li\u003e\n  \u003cli\u003eIndustrial hoisting, crane long-travel, and overhead gantry systems.\u003c\/li\u003e\n  \u003cli\u003eHigh-capacity positive displacement pumps and centrifugal fans.\u003c\/li\u003e\n  \u003cli\u003eMetal wire drawing machines requiring precise tension control.\u003c\/li\u003e\n  \u003cli\u003eAutomated materials handling conveyors and sorting lines.\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    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"border-bottom: 2px solid #2d3748; padding: 10px; text-align: left; font-weight: bold; color: #1a365d;\"\u003eSpecification Parameter\u003c\/th\u003e\n        \u003cth style=\"border-bottom: 2px solid #2d3748; padding: 10px; text-align: left; font-weight: bold; color: #1a365d;\"\u003eValue \/ Rating\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px; font-weight: bold;\"\u003eMitsubishi Electric\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px; font-weight: bold;\"\u003eFR-A840-18.5K-1\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003eApplicable Motor Capacity\u003c\/td\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003e18.5 kW (Normal Duty) \/ 22 kW (Light Duty)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003eOutput Rated Current\u003c\/td\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003e38 A (Normal Duty)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003eOutput Capacity\u003c\/td\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003e29 kVA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003eInput Rated Voltage \/ Frequency\u003c\/td\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003eThree-phase 380 to 500 V AC, 50\/60 Hz\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003eOutput Rated Voltage\u003c\/td\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003eThree-phase 380 to 500 V AC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003eControl Monitor Terminal Type\u003c\/td\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003eFM terminal (pulse train monitor)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003eCommunication Interface\u003c\/td\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003eRS-232 \/ RS-422 \/ RS-485\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003eEnclosure Protection Rating\u003c\/td\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003eIP20 (Open Type)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003eStandards \/ Conformity\u003c\/td\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003eCE, UL, cUL, KC, RoHS\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003eHeight\u003c\/td\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003e400 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003eWidth\u003c\/td\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003e250 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003eDepth\u003c\/td\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003e190 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"border-bottom: 1px solid #e2e8f0; padding: 8px 10px; font-weight: bold;\"\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\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4 style=\"color: #1a365d; font-size: 1.1rem; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThis unit replaces legacy FR-A740-18.5K models. While physical mounting footprints are highly similar, wiring layouts and the digital keypads differ. Use Mitsubishi's FR Configurator2 software to import existing FR-A700 parameter profiles and convert them directly to FR-A800 compatible formats. Ensure that terminal \"FM\" (pulse output) configuration is matched, as the alternative \"AM\" (analog voltage) variant has distinct hardware wiring requirements.\u003c\/p\u003e\n\n\u003ch4 style=\"color: #1a365d; font-size: 1.1rem; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe FR-A840-18.5K-1 features dual overload ratings: Normal Duty (ND) and Light Duty (LD). For heavy cyclic applications like escalators or reciprocating compressors, keep parameter settings configured to ND (150% overload capacity). Operating in LD mode (22 kW output) on heavy torque loads will trigger premature E.THT (Inverter Overload) or E.OC1 (Overcurrent during acceleration) trip states. Ensure minimum clearance guidelines (100 mm top and bottom) are strictly maintained inside electrical panels to ensure proper heat sink thermal convection.\u003c\/p\u003e\n\n\u003ch4 style=\"color: #1a365d; font-size: 1.1rem; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe FM feedback loop is susceptible to electromagnetic interference (EMI). Run all pulse monitoring cables in dedicated grounded steel conduits or use shielded twisted-pair (STP) lines. Ground the shield exclusively at the drive’s protective earth terminal (PE) and avoid routing control wires parallel to high-power motor cables (U, V, W) to prevent noise induction on the pulse train signals.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 12px; margin-bottom: 1.5rem;\"\u003e\n  \u003cp style=\"color: #9b2c2c; font-weight: bold; margin: 0 0 4px 0;\"\u003eCRITICAL WARNING:\u003c\/p\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0;\"\u003eIsolate and lock out all AC input power before beginning physical mounting or electrical termination. Wait at least 10 minutes post de-energization to allow internal DC bus link capacitors to fully bleed down. Measure DC voltage across terminals P\/+ and N\/- using a calibrated digital multimeter to verify the voltage is below 30V DC before starting work.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 12px;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 12px; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748; line-height: 1.5;\"\u003eMount the VFD vertically on a flat, non-flammable backplate within an IP54 or higher rated control enclosure if ambient dusty or humid conditions exist.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 12px;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 12px; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748; line-height: 1.5;\"\u003eConnect main input lines (R\/L1, S\/L2, T\/L3) to the drive power terminals, observing recommended torque limits. Install an appropriately rated molded case circuit breaker (MCCB) upstream.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 12px;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 12px; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748; line-height: 1.5;\"\u003eTerminate the output terminals (U, V, W) directly to the induction or PM motor. Do not install power factor correction capacitors or surge suppressors on the output lines.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 12px;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 12px; flex-shrink: 0;\"\u003e4\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748; line-height: 1.5;\"\u003eConnect control inputs and the FM monitoring line using shielded cable, then verify parameter Pr. 290 (FM\/AM terminal function selection) matches your system configuration.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Mitsubishi Electric","offers":[{"title":"Default Title","offer_id":53102134165867,"sku":"FR-A840-18.5K-1","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/fr-a840-18.5k-1-n5dca5cywbg.png?v=1776137466","url":"https:\/\/www.plcprotech.com\/fr\/products\/mitsubishi-electric-fr-a840-18-5k-1-fr-a800-series-variable-frequency-drive","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}