{"product_id":"mitsubishi-electric-fr-a740-22k-cht-a700-series-variable-frequency-drive","title":"Mitsubishi Electric FR-A740-22K-CHT A700 Series Variable Frequency Drive","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\n  Designed for exceptional motor control in high-demand environments, the \u003cstrong\u003eMitsubishi Electric FR-A740-22K-CHT\u003c\/strong\u003e provides precise variable frequency speed and torque management for three-phase induction motors. As a part of the high-performance \u003cstrong\u003eA700 Series\u003c\/strong\u003e, this 22 kW drive features advanced vector control algorithms and robust electrical protections. It is built to ensure seamless operation under continuous heavy-duty loads while maintaining excellent thermal efficiency.\n\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eKey Technical Features\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eAdvanced Vector Control:\u003c\/strong\u003e Supports offline\/online auto-tuning for premium flux vector performance without speed sensors.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eHigh Overload Threshold:\u003c\/strong\u003e Tolerates transient current surges up to 150% for 60 seconds and 200% for 3 seconds to protect against mechanical blockages.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eContinuous Thermal Capacity:\u003c\/strong\u003e Engineered with forced-air fan cooling to support full-load operations up to an ambient temperature of 50 degC.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eIP20 Enclosed Protection:\u003c\/strong\u003e Compact housing designed for integration into standard industrial cabinets and control rooms.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\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 style=\"margin-bottom: 0.5rem;\"\u003eHeavy manufacturing machinery including extruders, mixers, and rotary kilns.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003eHigh-inertia material handling systems, industrial conveyors, and automated cranes.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003eLarge centrifugal fans, exhaust blowers, and municipal booster pumps.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\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: 40%;\"\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-A740-22K-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 Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eA700 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;\"\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;\"\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;\"\u003eRated Capacity\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e32.8 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 Voltage (Output)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eThree-phase 380V to 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;\"\u003eRated Input AC Voltage \/ Frequency\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eThree-phase 380V to 480V, 50Hz\/60Hz\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;\"\u003ePermissible AC Voltage Fluctuation\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e323V to 528V, 50Hz\/60Hz\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;\"\u003ePermissible Frequency Fluctuation\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e+\/- 5%\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;\"\u003ePower Supply Capacity\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e41 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;\"\u003eProtective Rating\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eIP20 Enclosed 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;\"\u003eCooling Method\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eForced Air Cooling\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\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;\"\u003e14.0 kg\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;\"\u003ePackage Dimensions (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e430 x 290 x 260 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003ePower and Control Terminals\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;\"\u003eTerminal Symbol\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; font-weight: bold;\"\u003eTerminal Name\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; font-weight: bold;\"\u003eFunctional 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;\"\u003eAC Power Input\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eConnection to commercial three-phase mains 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;\"\u003eU, V, W\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eInverter Output\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eConnection to the external three-phase induction motor.\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;\"\u003eBraking Resistor\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eConnection point for dynamic braking options.\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 \/ Reverse Start\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eExternal signal command triggers for directional rotation.\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;\"\u003eSignal Common (Sink)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eCommon ground terminal for digital inputs configured to sink logic.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\n  The \"CHT\" suffix designates a localized firmware and default parameter configuration optimized for standard Asian markets, meaning the default base frequency is 50Hz and digital control terminals default to sink (negative) logic. This drive is a direct drop-in replacement for standard FR-A740-22K units, provided parameters like Pr. 3 (Base Frequency) and the internal logic jumper are verified and calibrated to your local wiring standards.\n\u003c\/p\u003e\n\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\n  For dynamic systems with highly cyclical braking or large physical inertia, the drive's built-in 20% torque permissible duty might trigger regenerative overvoltage faults (E.OV3). Integrating a dedicated external dynamic braking unit (such as the FR-BU2 series) alongside dynamic resistors is highly recommended to protect the internal DC bus. When mounting inside completely closed IP54 panels, ensure cabinet dimensions allow the dissipation of approximately 650 Watts of thermal energy produced by the drive at full load.\n\u003c\/p\u003e\n\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\n  Always isolate the control signaling cable from high-voltage motor output lines by keeping a separation distance of at least 10 cm, or utilize dedicated metal conduit separation. For analog control signals (terminals 2, 4, 1), use shielded twisted-pair cabling and tie the shield to control ground (terminal 5) at the drive end only. This mitigates high-frequency noise from corrupting speed references.\n\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; margin-top: 1.5rem; margin-bottom: 0.5rem;\"\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;\"\u003eCRITICAL SAFETY WARNING:\u003c\/strong\u003e\n  \u003cp style=\"color: #9b2c2c; margin: 0.5rem 0 0 0;\"\u003e\n    Ensure all primary AC feed lines are de-energized prior to beginning installation. The internal DC bus capacitors contain dangerous residual charge. Wait a minimum of 10 minutes after disconnecting power, and confirm the physical \"CHARGE\" LED on the control board is fully extinguished before performing any terminal modifications or wire connections.\n  \u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cspan 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: 0.75rem; flex-shrink: 0;\"\u003e1\u003c\/span\u003e\n  \u003cp style=\"margin: 0; color: #2d3748;\"\u003e\u003cstrong\u003eVertical Orientation:\u003c\/strong\u003e Always mount the drive vertically inside the panel to leverage built-in forced-air convection dynamics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cspan 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: 0.75rem; flex-shrink: 0;\"\u003e2\u003c\/span\u003e\n  \u003cp style=\"margin: 0; color: #2d3748;\"\u003e\u003cstrong\u003eClearance Tolerances:\u003c\/strong\u003e Maintain at least 100 mm of open vertical space above and below the device, and a minimum of 50 mm horizontal distance from side components.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cspan 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: 0.75rem; flex-shrink: 0;\"\u003e3\u003c\/span\u003e\n  \u003cp style=\"margin: 0; color: #2d3748;\"\u003e\u003cstrong\u003eProtective Earthing:\u003c\/strong\u003e Connect the dedicated ground terminal (PE) to an active system ground. Keep grounding resistance below 10 ohms to prevent electrostatic interference.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Mitsubishi Electric","offers":[{"title":"Default Title","offer_id":53102127448427,"sku":"FR-A740-22K-CHT","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/FR-A740-22K-CHT-4syjp03nh22.png?v=1776137431","url":"https:\/\/www.plcprotech.com\/id\/products\/mitsubishi-electric-fr-a740-22k-cht-a700-series-variable-frequency-drive","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}