{"product_id":"dc9-36v-brushless-motor-drive-board-pid-closed-loop-controller","title":"DC 9-36V Brushless Motor Drive Board PID Closed-Loop Controller","description":"\n\u003ch2\u003eDC 9-36V Brushless Motor Drive Board — PID Speed, Position \u0026amp; Torque Closed-Loop Controller\u003c\/h2\u003e\n\u003cp\u003eTake precise control of your brushless DC motor projects with this advanced \u003cstrong\u003eDC 9-36V Brushless Motor Drive Board\u003c\/strong\u003e. Featuring full three-axis closed-loop control (position, speed, and torque), FOC (vector) and square-wave dual drive modes, and broad compatibility with RS-485 Modbus RTU communication, this board is engineered for makers, engineers, and automation enthusiasts who demand accuracy and flexibility.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Voltage:\u003c\/strong\u003e DC 9V – 36V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent:\u003c\/strong\u003e 3A continuous\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSensor Type:\u003c\/strong\u003e Hall sensor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Modes:\u003c\/strong\u003e FOC (vector) \/ Square Wave — freely switchable\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eControl Loops:\u003c\/strong\u003e Position, Speed \u0026amp; Torque (three closed-loop)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eControl Interfaces:\u003c\/strong\u003e RS-485 Modbus RTU, Potentiometer, Analog voltage, PWM, Pulse, RC\/Aircraft signal, Frequency\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eMain Functions\u003c\/h3\u003e\n\n\u003ch4\u003e1. Position Control\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePulse Position Servo:\u003c\/strong\u003e Same principle as stepper\/AC servo — one pulse = one step.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRS-485 Modbus RTU:\u003c\/strong\u003e Send position targets via communication bus; motor automatically navigates to the designated position.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePotentiometer \/ Analog:\u003c\/strong\u003e Rotate a pot or adjust analog voltage to set motor position.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSwitch Position:\u003c\/strong\u003e Each switch input maps to a preset position; trigger = auto-run.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRC\/PWM\/Frequency:\u003c\/strong\u003e Use pulse width, PWM duty cycle, or frequency to command position.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e2. Speed Control\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePotentiometer \/ Analog:\u003c\/strong\u003e Adjust pot or analog voltage to set target RPM.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRS-485 Modbus RTU:\u003c\/strong\u003e Send speed commands; controller holds stable at target speed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSwitch Speed:\u003c\/strong\u003e Map multiple preset speeds to switch inputs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRC Signal:\u003c\/strong\u003e Control speed and direction via RC pulse width.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePWM \/ Frequency \/ Pulse:\u003c\/strong\u003e Fine-tune speed via duty cycle, frequency, or pulse count.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e3. Torque Control\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003ePotentiometer, analog voltage, RS-485, switch inputs, or PWM\/frequency\/pulse — all supported for torque target setting.\u003c\/li\u003e\n  \u003cli\u003eFour-quadrant drive capability: generates braking force opposite to rotation — ideal for downhill conveyors or lift applications without stalling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e4. User Programming (Custom Control Logic)\u003c\/h4\u003e\n\u003cp\u003eUse the included PC programming software to perform secondary development. Freely switch between position\/speed\/torque modes and implement custom control logic. Supports assignment, jump, operation, and interrupt instructions. Includes \u003cstrong\u003e5 programmable input ports\u003c\/strong\u003e and \u003cstrong\u003e1 programmable 3.3V output port\u003c\/strong\u003e. Free engineering case source code provided (C++ Builder, MCU C language Modbus RTU).\u003c\/p\u003e\n\n\u003ch4\u003e5. Additional Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003ePhase sequence learning — connect three-phase and Hall lines in any order\u003c\/li\u003e\n  \u003cli\u003ePositive \/ negative rotation limits\u003c\/li\u003e\n  \u003cli\u003eLong-duration stall torque output; reverse torque supported\u003c\/li\u003e\n  \u003cli\u003eTravel learning; power-on reset to origin; power-on travel learning\u003c\/li\u003e\n  \u003cli\u003ePower-down position memory\u003c\/li\u003e\n  \u003cli\u003eCommutation pulse output, fault alarm, position-complete, torque-up, and stop signal outputs\u003c\/li\u003e\n  \u003cli\u003eShutdown phase-lock function (motor lock); adjustable phase-lock current\u003c\/li\u003e\n  \u003cli\u003eThree analog voltage detection channels (0 mV – 10,000 mV range, freely configurable)\u003c\/li\u003e\n  \u003cli\u003eFree PC debugging \u0026amp; configuration software\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e6. Protection Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eReverse polarity, over-voltage \u0026amp; under-voltage protection\u003c\/li\u003e\n  \u003cli\u003eStall, over-current \u0026amp; overload protection\u003c\/li\u003e\n  \u003cli\u003eAbnormal phase sequence \u0026amp; communication-interruption protection\u003c\/li\u003e\n  \u003cli\u003eESD protection on all ports (input ports withstand up to 25V signals)\u003c\/li\u003e\n  \u003cli\u003eMoisture, dust \u0026amp; vibration resistant PCB coating\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDue to lighting and screen variations, the item's color may differ slightly from product images.\u003c\/li\u003e\n  \u003cli\u003ePlease allow 1 mm – 1 cm differences due to manual measurement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Includes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Brushless Motor Drive Board\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003cp\u003eFor general guidance on electrical safety standards in electronics, visit the U.S. Consumer Product Safety Commission — Electrical Safety.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What drive modes does this brushless motor controller support?\u003c\/h4\u003e\n\u003cp\u003eA: The board supports both FOC (Field-Oriented Control \/ vector) and square-wave drive modes, which can be freely switched at any time. FOC provides smoother, more efficient motor operation, while square-wave mode is simpler and suitable for less demanding applications.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What communication interfaces are available for controlling this drive board?\u003c\/h4\u003e\n\u003cp\u003eA: The controller supports a wide range of interfaces including RS-485 Modbus RTU serial communication, potentiometer, analog voltage (0–10V), PWM, pulse, RC\/aircraft model signal, and frequency input — making it compatible with PLCs, microcontrollers, RC receivers, and PC-based systems.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can this board be used for lifting or downhill conveyor applications?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The four-quadrant drive architecture allows the board to generate braking torque in the direction opposite to rotation, preventing runaway in downhill or load-lowering scenarios without stalling the motor.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is custom programming supported, and is software included?\u003c\/h4\u003e\n\u003cp\u003eA: Yes — the board supports secondary development via the included PC configuration and debugging software. Users can write custom control logic with support for assignment, jump, operation, and interrupt instructions. Free source code examples for C++ and MCU C language Modbus RTU are also provided at no extra cost.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What drive modes does this brushless motor controller support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The board supports both FOC (Field-Oriented Control \/ vector) and square-wave drive modes, which can be freely switched at any time. 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