{"product_id":"mitsubishi-electric-fr-a740-0-4k-cht-fr-a700-series-variable-frequency-drive","title":"Mitsubishi Electric FR-A740-0.4K-CHT FR-A700 Series Variable Frequency Drive","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\n  Engineered to provide high-performance speed and torque regulation for three-phase induction motors, the \u003cstrong\u003eMitsubishi Electric FR-A740-0.4K-CHT\u003c\/strong\u003e variable frequency drive delivers precise dynamic response in low-power industrial environments. This \u003cstrong\u003e0.4 kW\u003c\/strong\u003e inverter belongs to the robust \u003cstrong\u003eFR-A700 Series\u003c\/strong\u003e, incorporating advanced sensorless vector control technology and localized power optimization. The \"CHT\" suffix indicates optimized firmware calibration and localized system parameters designed for standard regional grids, facilitating trouble-free integration into modern machinery setups.\n\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003eAdvanced Real Sensorless Vector Control (RSV) delivers high starting torque and precise speed control without requiring an encoder.\u003c\/li\u003e\n  \u003cli\u003eBuilt-in miniature PLC functionality allows execution of basic localized control logic, reducing overhead on master controllers.\u003c\/li\u003e\n  \u003cli\u003eDual overload capacity ratings (LD and ND) allow cost-effective matching to specific system torque profiles.\u003c\/li\u003e\n  \u003cli\u003eIntegrated long-life components including cooling fans and capacitors rated for extended deployment lifespans.\u003c\/li\u003e\n  \u003cli\u003eFlexible networking compatibility through dedicated plug-in option cards for CC-Link, Profibus-DP, and DeviceNet.\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: 1rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003ePrecision materials handling systems and localized belt conveyors requiring smooth starting torque.\u003c\/li\u003e\n  \u003cli\u003eIndustrial ventilation systems, blowers, and low-horsepower centrifugal pump setups.\u003c\/li\u003e\n  \u003cli\u003eMachine tool positioning axes, automated packaging equipment, and packaging line indexers.\u003c\/li\u003e\n  \u003cli\u003eZonal chemical dosing pumps and dynamic automated mixing apparatuses.\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: 30%;\"\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-A740-0.4K-CHT\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;\"\u003eSeries\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eFR-A700 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;\"\u003eInput Voltage Class\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eThree-phase 400 V Class (380 to 480 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;\"\u003eApplicable Motor Capacity\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e0.4 kW (approx. 0.5 HP)\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 Frequency Range\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e0.2 to 400 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;\"\u003eControl Algorithms\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eV\/F Control, Real Sensorless Vector Control, Closed-loop Vector Control (with option card)\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 Class\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;\"\u003eOperating Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e-10 to +50 degC (non-freezing)\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;\"\u003e5.5 kg (12.13 lbs)\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;\"\u003eCountry of Origin\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eJapan \/ China (Regional OEM Facility)\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; text-align: left;\"\u003e\n        \u003cth style=\"padding: 0.75rem; font-weight: bold;\"\u003eTerminal Block Label\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem; font-weight: bold;\"\u003eFunction 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;\"\u003eR\/L1, S\/L2, T\/L3\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eThree-phase main AC power input (380-480V)\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;\"\u003eThree-phase variable AC output to the motor terminals\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;\"\u003eP\/+, PR\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eDedicated connections for dynamic external braking resistor\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 and Reverse digital start signal lines\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 ground for external control and sink inputs\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;\"\u003eRJ45 Serial Port\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eRS-485 Modbus RTU interface \/ Parameter unit physical connection\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\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\n  The \"CHT\" variant shares identical dimensions and core power circuitry with standard FR-A740 European or North American models. However, users should note that the default system parameters (such as nominal line frequency defaults and basic digital input logic configuration) are preset to 50Hz and sink logic. If integrating this module as a direct spare part in a system running a non-CHT model, run a full parameter dump comparison via FR Configurator software to ensure matching control configurations.\n\u003c\/p\u003e\n\n\u003ch4\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\n  Because of the low-mass heat sink on 0.4 kW models, thermal management is heavily dependent on ambient cabinet airflows. When mounting multiple drives side-by-side, ensure a horizontal spacing of at least 10mm if operating at continuous nominal load. Do not adjust the PWM carrier frequency (Parameter 72) above 12.5 kHz in confined cabinets exceeding 40 degC without implementing a continuous forced-air cooling strategy, as the unit will preemptively trigger a thermal overload (E.THT) fault.\n\u003c\/p\u003e\n\n\u003ch4\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\n  To minimize electromagnetic interference (EMI) issues characteristic of PWM frequency outputs, run a shielded four-core motor cable from terminals U, V, and W to the motor, terminating the screen on both ends using high-surface-contact EMC clamps. Never route sensitive low-voltage analog command lines (e.g., 4-20mA speed references) in parallel with main AC supply line or motor line conduits; keep a separation of at least 100mm.\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\u003c\/strong\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0;\"\u003e\n    Before performing any physical connection or control wiring, isolate the AC power supply. Internal capacitors retain hazardous high-voltage DC charges for several minutes after incoming power is cut. Confirm that the internal charge indicator lamp is completely unlit, and verify with a reliable multimeter that the voltage across DC terminals P\/+ and N\/- has dropped below 20V DC before starting terminal termination.\n  \u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 2rem; height: 2rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 1rem;\"\u003e1\u003c\/div\u003e\n  \u003cp style=\"color: #2d3748; margin: 0;\"\u003eMount the drive in a vertical orientation onto a flat, vibration-free panel using standard M4 screws, maintaining at least 50mm clear spacing above and below the unit.\u003c\/p\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: 2rem; height: 2rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 1rem;\"\u003e2\u003c\/div\u003e\n  \u003cp style=\"color: #2d3748; margin: 0;\"\u003eConnect the incoming three-phase supply power to mains terminals R\/L1, S\/L2, and T\/L3. Connect the chassis ground to the dedicated Earth connection terminal.\u003c\/p\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: 2rem; height: 2rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 1rem;\"\u003e3\u003c\/div\u003e\n  \u003cp style=\"color: #2d3748; margin: 0;\"\u003eConnect the motor power cable leads to the U, V, and W terminals. Verify that no power factor correction capacitors or phase-advance devices are connected to the output path.\u003c\/p\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: 2rem; height: 2rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 1rem;\"\u003e4\u003c\/div\u003e\n  \u003cp style=\"color: #2d3748; margin: 0;\"\u003eTurn on the incoming AC supply. Configure the primary parameters (Pr. 1 to Pr. 3 for basic speed limits, and Pr. 9 for motor electronic thermal relay protection) relative to your motor nameplate before initiating motor rotation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Mitsubishi Electric","offers":[{"title":"Default Title","offer_id":53102148452715,"sku":"FR-A740-0.4K-CHT","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/fr-a740-0.4k-cht-kt1it1bdr1l.png?v=1776137424","url":"https:\/\/www.plcprotech.com\/tr\/products\/mitsubishi-electric-fr-a740-0-4k-cht-fr-a700-series-variable-frequency-drive","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}