{"product_id":"c69-pwm-spindle-speed-control-board-with-0-10v-analog-output","title":"C69 PWM Spindle Speed Control Board with 0–10V Analog Output","description":"\u003cdiv style=\"font-family: Arial, sans-serif; line-height: 1.6; color: #222;\"\u003e\n\n  \u003ch2 style=\"font-size: 24px; margin-bottom: 10px;\"\u003eC69 PWM Spindle Speed Control Board\u003c\/h2\u003e\n\n  \u003cp style=\"font-size: 16px; margin-bottom: 18px;\"\u003e\n    The \u003cstrong\u003eC69 PWM Speed Control Board\u003c\/strong\u003e is designed to let your CNC control system command spindle speed using a \u003cstrong\u003ePWM control signal\u003c\/strong\u003e. The board outputs a \u003cstrong\u003e0–10VDC analog signal\u003c\/strong\u003e, which is commonly used by VFDs and spindle drives for external speed control.\n  \u003c\/p\u003e\n\n  \u003cp style=\"font-size: 16px; margin-bottom: 18px;\"\u003e\n    This board is useful when you want your CNC software to control spindle speed automatically instead of manually adjusting the VFD or motor controller. It also includes two onboard relays that can be used for spindle direction and drive enable\/disable control, depending on your wiring setup.\n  \u003c\/p\u003e\n\n  \u003cdiv style=\"background: #f6f6f6; border-left: 4px solid #333; padding: 15px 18px; margin: 22px 0;\"\u003e\n    \u003cstrong\u003eBest for:\u003c\/strong\u003e CNC routers, CNC mills, VFD spindle control, parallel-port CNC systems, Mach-style spindle setups, and CNC control boxes that need 0–10V analog spindle speed output.\n  \u003c\/div\u003e\n\n  \u003ch3 style=\"font-size: 20px; margin-top: 28px;\"\u003eWhy Choose the C69?\u003c\/h3\u003e\n\n  \u003cul style=\"padding-left: 22px; margin-bottom: 22px;\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e0–10V spindle speed output:\u003c\/strong\u003e Provides the analog speed signal used by many VFDs and spindle drives.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePWM-based speed control:\u003c\/strong\u003e Allows your CNC controller or software to command spindle speed automatically.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBuilt-in relay outputs:\u003c\/strong\u003e Includes two relays that can be used for spindle enable, start\/stop, or direction control depending on your setup.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDB25 parallel-port connections:\u003c\/strong\u003e Includes two DB25 connectors for connecting a parallel port interface to the CNC controller setup.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOptoisolated output signals:\u003c\/strong\u003e Helps protect control electronics from electrical noise and ground issues commonly found around VFDs and motor drives.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTTL 5VDC signal compatibility:\u003c\/strong\u003e Designed to interface with common CNC parallel-port products and other CNC4PC-style control boards.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFlexible installation:\u003c\/strong\u003e Can be used with CNC4PC products, direct parallel-port systems, or compatible parallel-port control hardware.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCan work with some DC motor controllers:\u003c\/strong\u003e In compatible setups, this board can replace the manual speed potentiometer signal used by certain DC motor controllers.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3 style=\"font-size: 20px; margin-top: 28px;\"\u003eMain Features\u003c\/h3\u003e\n\n  \u003cul style=\"padding-left: 22px; margin-bottom: 22px;\"\u003e\n    \u003cli\u003eOutputs analog 0–10VDC speed-control signal\u003c\/li\u003e\n    \u003cli\u003eDesigned for compatible VFD and spindle drive speed control\u003c\/li\u003e\n    \u003cli\u003ePWM spindle speed control support\u003c\/li\u003e\n    \u003cli\u003eTwo DB25 connectors for parallel-port style wiring\u003c\/li\u003e\n    \u003cli\u003eTwo onboard relays for direction and enable\/disable control\u003c\/li\u003e\n    \u003cli\u003eCan be used for clockwise\/counterclockwise direction control where supported\u003c\/li\u003e\n    \u003cli\u003eOptoisolated analog and CW\/CCW output signals\u003c\/li\u003e\n    \u003cli\u003eTTL +5VDC signal compatibility\u003c\/li\u003e\n    \u003cli\u003eWorks with many parallel-port CNC control products\u003c\/li\u003e\n    \u003cli\u003eUseful for CNC spindle speed automation and control box retrofits\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3 style=\"font-size: 20px; margin-top: 28px;\"\u003eHow It Works\u003c\/h3\u003e\n\n  \u003cp style=\"font-size: 16px; margin-bottom: 18px;\"\u003e\n    Many VFDs and spindle drives accept an external \u003cstrong\u003e0–10VDC analog speed signal\u003c\/strong\u003e. A lower voltage commands a lower spindle speed, while a higher voltage commands a higher spindle speed. For example, approximately 5V usually represents about 50% speed and 10V represents full commanded speed, depending on the VFD settings.\n  \u003c\/p\u003e\n\n  \u003cp style=\"font-size: 16px; margin-bottom: 18px;\"\u003e\n    The C69 allows your CNC control system to generate that speed command from a PWM signal. This lets your CNC software control spindle speed directly, instead of requiring the operator to manually adjust speed at the VFD.\n  \u003c\/p\u003e\n\n  \u003ch3 style=\"font-size: 20px; margin-top: 28px;\"\u003eSpindle Control Functions\u003c\/h3\u003e\n\n  \u003cdiv style=\"overflow-x: auto; margin-bottom: 22px;\"\u003e\n    \u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 15px;\"\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align: left; border: 1px solid #ddd; padding: 10px; background: #f2f2f2;\"\u003eFunction\u003c\/th\u003e\n        \u003cth style=\"text-align: left; border: 1px solid #ddd; padding: 10px; background: #f2f2f2;\"\u003ePurpose\u003c\/th\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003e0–10V Analog Output\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eCommands compatible VFD or spindle-drive speed.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eRelay 1\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eCan be used for spindle enable, start\/stop, or direction depending on wiring.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eRelay 2\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eCan be used for direction control or another spindle-control function depending on wiring.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eDB25 Connections\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #ddd; padding: 10px;\"\u003eProvides parallel-port style connection points for compatible CNC controller setups.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch3 style=\"font-size: 20px; margin-top: 28px;\"\u003eCustomer-Friendly Explanation\u003c\/h3\u003e\n\n  \u003cp style=\"font-size: 16px; margin-bottom: 18px;\"\u003e\n    The C69 is the board that helps your CNC controller control spindle speed through a VFD. Your CNC system sends a PWM signal, and the C69 provides the 0–10V analog signal that many VFDs use to set spindle speed.\n  \u003c\/p\u003e\n\n  \u003cp style=\"font-size: 16px; margin-bottom: 18px;\"\u003e\n    Use this board when you want spindle speed to be controlled from your CNC software instead of manually changing speed with the VFD keypad or a physical knob.\n  \u003c\/p\u003e\n\n  \u003ch3 style=\"font-size: 20px; margin-top: 28px;\"\u003eCommon Uses\u003c\/h3\u003e\n\n  \u003cul style=\"padding-left: 22px; margin-bottom: 22px;\"\u003e\n    \u003cli\u003eVFD spindle speed control\u003c\/li\u003e\n    \u003cli\u003eCNC router spindle automation\u003c\/li\u003e\n    \u003cli\u003eCNC mill spindle control\u003c\/li\u003e\n    \u003cli\u003eParallel-port CNC control systems\u003c\/li\u003e\n    \u003cli\u003eMach-style spindle output setups\u003c\/li\u003e\n    \u003cli\u003ePWM-to-analog speed conversion\u003c\/li\u003e\n    \u003cli\u003eSpindle enable and direction wiring\u003c\/li\u003e\n    \u003cli\u003eControl box upgrades and retrofits\u003c\/li\u003e\n    \u003cli\u003eCompatible DC motor speed-control applications\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n\n  \u003ch3 style=\"font-size: 20px; margin-top: 28px;\"\u003eOfficial Documentation, VFD Setup Guides \u0026amp; Wiring Downloads\u003c\/h3\u003e\n\n  \u003cdiv style=\"background: #f6f6f6; border-left: 4px solid #333; padding: 18px 20px; margin: 22px 0;\"\u003e\n    \u003cp style=\"font-size: 16px; margin: 0 0 16px 0;\"\u003e\n      Review the C69 manuals and wiring examples before connecting this PWM spindle speed control board to a VFD, spindle drive, G540, MX3660, XSY-AT1, or other compatible CNC control system. These downloads help with 0–10V analog speed control, Huanyang VFD setup, relay wiring, direction control, and spindle enable wiring.\n    \u003c\/p\u003e\n\n    \u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 10px;\"\u003e\n      \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0664\/7516\/3822\/files\/User_Manual_C69.pdf?v=1779235678\" target=\"_blank\" rel=\"noopener\" style=\"display:block;background:#111;color:#fff;text-decoration:none;font-weight:700;border:0;border-radius:8px;padding:13px 16px;font-size:15px;line-height:20px;\"\u003e\n        User Manual C69\n      \u003c\/a\u003e\n      \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0664\/7516\/3822\/files\/User_s_Manual_C69.pdf?v=1779235734\" target=\"_blank\" rel=\"noopener\" style=\"display:block;background:#fff;color:#111;text-decoration:none;font-weight:700;border:1px solid #111;border-radius:8px;padding:13px 16px;font-size:15px;line-height:20px;\"\u003e\n        User's Manual C69\n      \u003c\/a\u003e\n      \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0664\/7516\/3822\/files\/Setup_Using_a_G540_and_VFD_HUANYANG_instructions.pdf?v=1779235808\" target=\"_blank\" rel=\"noopener\" style=\"display:block;background:#111;color:#fff;text-decoration:none;font-weight:700;border:0;border-radius:8px;padding:13px 16px;font-size:15px;line-height:20px;\"\u003e\n        Setup Using G540 and Huanyang VFD\n      \u003c\/a\u003e\n      \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0664\/7516\/3822\/files\/Setup_Using_MX3660_and_VFD_HUANYANG_Instructions.pdf?v=1779235888\" target=\"_blank\" rel=\"noopener\" style=\"display:block;background:#fff;color:#111;text-decoration:none;font-weight:700;border:1px solid #111;border-radius:8px;padding:13px 16px;font-size:15px;line-height:20px;\"\u003e\n        Setup Using MX3660 and Huanyang VFD\n      \u003c\/a\u003e\n      \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0664\/7516\/3822\/files\/10VDC_Control.pdf?v=1779235942\" target=\"_blank\" rel=\"noopener\" style=\"display:block;background:#111;color:#fff;text-decoration:none;font-weight:700;border:0;border-radius:8px;padding:13px 16px;font-size:15px;line-height:20px;\"\u003e\n        0–10VDC Control Guide\n      \u003c\/a\u003e\n      \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0664\/7516\/3822\/files\/Wiring_sample_C69_and_XSY-AT1.pdf?v=1779236015\" target=\"_blank\" rel=\"noopener\" style=\"display:block;background:#fff;color:#111;text-decoration:none;font-weight:700;border:1px solid #111;border-radius:8px;padding:13px 16px;font-size:15px;line-height:20px;\"\u003e\n        Wiring Sample C69 and XSY-AT1\n      \u003c\/a\u003e\n      \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0664\/7516\/3822\/files\/Connection_C69_and_G540.pdf?v=1779236068\" target=\"_blank\" rel=\"noopener\" style=\"display:block;background:#fff;color:#111;text-decoration:none;font-weight:700;border:1px solid #111;border-radius:8px;padding:13px 16px;font-size:15px;line-height:20px;\"\u003e\n        Connection C69 and G540\n      \u003c\/a\u003e\n    \u003c\/div\u003e\n\n    \u003cp style=\"font-size: 13px; color: #555; margin: 14px 0 0 0;\"\u003e\n      Documentation may include C69 wiring diagrams, 0–10VDC spindle speed control notes, Huanyang VFD parameter examples, G540 and MX3660 connection examples, XSY-AT1 wiring samples, and spindle control setup guidance. Always verify your CNC controller output, PWM settings, VFD parameters, wiring, voltage, current, and safety requirements before powering the system.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch3 style=\"font-size: 20px; margin-top: 28px;\"\u003eImportant Compatibility Notes\u003c\/h3\u003e\n\n  \u003cul style=\"padding-left: 22px; margin-bottom: 22px;\"\u003e\n    \u003cli\u003eThis board is \u003cstrong\u003enot a VFD\u003c\/strong\u003e and is \u003cstrong\u003enot a motor driver\u003c\/strong\u003e.\u003c\/li\u003e\n    \u003cli\u003eIt provides a 0–10VDC analog speed-control signal for compatible drives.\u003c\/li\u003e\n    \u003cli\u003eYour VFD or motor controller must support external 0–10V analog speed control.\u003c\/li\u003e\n    \u003cli\u003eYour CNC controller or breakout board must provide the required PWM\/control signals.\u003c\/li\u003e\n    \u003cli\u003eDirection control only works if your VFD or drive is wired and configured to support CW\/CCW control.\u003c\/li\u003e\n    \u003cli\u003eVFD parameters may need to be changed so the drive accepts external analog speed control instead of keypad control.\u003c\/li\u003e\n    \u003cli\u003eAlways verify wiring and VFD documentation before connecting spindle-control electronics.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n\n  \u003ch3 style=\"font-size: 20px; margin-top: 28px;\"\u003eC69 Spindle Control Board Buying Guidance\u003c\/h3\u003e\n\n  \u003cp style=\"font-size: 16px; margin-bottom: 18px;\"\u003e\n    Choose the C69 if your CNC machine needs PWM-to-0–10V spindle speed control for a compatible VFD or spindle drive. It is especially useful for control box builds and retrofits where the CNC controller can output PWM, but the VFD expects an analog 0–10V speed command.\n  \u003c\/p\u003e\n\n  \u003cp style=\"font-size: 16px; margin-bottom: 18px;\"\u003e\n    Before ordering, confirm that your controller or breakout board can provide the required PWM\/control signal, your VFD accepts external 0–10V analog speed control, and your spindle drive can be configured for external run, direction, and speed commands. The C69 is the interface board; the final result depends on correct wiring and VFD parameter setup.\n  \u003c\/p\u003e\n\n  \u003cdiv style=\"background: #fff8e5; border: 1px solid #e0c878; padding: 15px 18px; margin-top: 24px;\"\u003e\n    \u003cstrong\u003eNeed help with spindle-control compatibility?\u003c\/strong\u003e\n    \u003cp style=\"margin: 8px 0 0 0;\"\u003e\n      If you are not sure whether the C69 will work with your CNC controller, VFD, or spindle setup, contact us before ordering. We can help you check whether your system supports PWM output and 0–10V analog spindle speed control.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"BuildYourCNC","offers":[{"title":"Default Title","offer_id":47832209162414,"sku":null,"price":53.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/7516\/3822\/files\/C69_C69-PWMSPDCONTRLBOARD.jpg?v=1778199260","url":"https:\/\/buildyourcnc.com\/products\/c69-pwm-spindle-speed-control-board-with-0-10v-analog-output","provider":"BuildYourCNC","version":"1.0","type":"link"}