{"product_id":"lf77-akz250-usb2b-mach3-cnc-motion-controller-board","title":"LF77-AKZ250-USB2(B) Mach3 USB CNC Controller Board, 3\/4 Axis, 200KHz","description":"\u003csection\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe LF77-AKZ250-USB2(B) is a Mach3 USB CNC motion controller board for 3-axis or 4-axis CNC control setups. It uses USB connection, supports plug-in use without separate USB driver installation and USB hot-swapping, and provides a maximum 200KHz step-pulse frequency for stepper or servo motor control.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eModel: LF77-AKZ250-USB2(B)\u003c\/li\u003e\n\u003cli\u003eInterface: USB\u003c\/li\u003e\n\u003cli\u003eAxis configuration options: 3 Axis and 4 Axis\u003c\/li\u003e\n\u003cli\u003eMaximum step-pulse frequency: 200KHz\u003c\/li\u003e\n\u003cli\u003eMach3 support listed, including Mach3 R3.043.066\u003c\/li\u003e\n\u003cli\u003eUSB connection status and working status can be shown by indicator LED\u003c\/li\u003e\n\u003cli\u003eFeed rate, spindle speed rate, or jog rate can be controlled by the adjustment knob\u003c\/li\u003e\n\u003cli\u003eOn-board isolated power supply is listed; external power can also be applied to reduce USB load\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eAxis output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e3 or 4 axis, high-speed optocouplers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eAxis output frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e200KHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eDigital inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003ePNP-5V x 16, optocoupler isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eAnalog inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e0-3.3V x 2, non-isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eMPG input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003ePNP-5V x 1, optocoupler isolation; MPG listed as not real time\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eSpeed measurement input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e1 optocoupler-isolated input, PNP-5V \/ NPN-5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eDigital outputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003eOpen collector output 500mA x 8, optocoupler isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eAnalog output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003ePWM open collector output 13mA x 1, optocoupler isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eMach3 functions listed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003eSoftware limit and backlash functions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003e\u003cstrong\u003eListed limitations\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #e5e5e5;\"\u003eNo slave axis, no automatic leveling, no axis link\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eBuyer Checks Before Ordering\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSelect the correct 3 Axis or 4 Axis variant for your CNC control layout.\u003c\/li\u003e\n\u003cli\u003eConfirm your Mach3 version, Windows environment, input voltage logic, output load, and spindle control requirements before purchase.\u003c\/li\u003e\n\u003cli\u003eCheck whether your application needs real-time MPG, slave-axis control, automatic leveling, or axis-link functions, because this listing marks those items as unavailable or limited.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eIs this board for 3-axis or 4-axis CNC control?\u003c\/h3\u003e\n\u003cp\u003eBoth 3 Axis and 4 Axis variants are listed. Choose the variant that matches the number of axes in your CNC machine setup.\u003c\/p\u003e\n\u003ch3\u003eWhat is the maximum step-pulse frequency?\u003c\/h3\u003e\n\u003cp\u003eThe listed maximum axis output frequency is 200KHz.\u003c\/p\u003e\n\u003ch3\u003eDoes the LF77-AKZ250-USB2(B) require a USB driver?\u003c\/h3\u003e\n\u003cp\u003eNo separate USB driver installation is required, and the board can be used after plugging into the computer.\u003c\/p\u003e\n\u003ch3\u003eWhich compatibility limits should I check?\u003c\/h3\u003e\n\u003cp\u003eThe listing marks MPG as not real time and lists no slave axis, no automatic leveling, and no axis link. Confirm these limits against your CNC control requirements.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eConnection Diagram\u003c\/h2\u003e\n\u003cp\u003e\u003cimg style=\"max-width: 100%; height: auto;\" decoding=\"async\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0718\/4354\/5177\/files\/Sc2193374a94f4169a9bd753c6bec29b3t.webp?v=1780391286\" alt=\"Mach3 USB motion controller connection diagram for spindle input output and 3 or 4 axis control\"\u003e\u003c\/p\u003e\n\u003c\/section\u003e","brand":"FMF","offers":[{"title":"3 Axis","offer_id":43370974117977,"sku":"FMF-LF77-AKZ250-USB2B-3AXIS","price":120.48,"currency_code":"USD","in_stock":true},{"title":"4 Axis","offer_id":43370974150745,"sku":"FMF-LF77-AKZ250-USB2B-4AXIS","price":181.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4354\/5177\/files\/Se3d7b07bbc374cb8899417c91078f0464.webp?v=1780391286","url":"https:\/\/fmfpack.com\/da\/products\/lf77-akz250-usb2b-mach3-cnc-motion-controller-board","provider":"FMF Supply","version":"1.0","type":"link"}