RioRand 300W 5-50V 3-Phase PWM DC Brushless Motor Speed Controller (Sensorless) for Hall-Free Brushless DC Motors, DIY Robotics, Electric Tools & PLC Systems

Sensorless 3-Phase BLDC Core SpecsThis V3 version high-speed driver works seamlessly with 3-phase DC brushless motors without Hall sensors (no Hall required for normal operation). It delivers 300W peak power (200W-250W rated), 5-50V wide operating voltage (60V max for emergency use), and 16A rated current (25A with forced cooling). Ideal for brushless motor setups in DIY projects, small tools, and industrial automation. | 3-Signal Speed Control & Versatile OperationSupports 3 adjustable speed modes: PWM signal (3-5V, 1kHz-10kHz), PLC 0-5V analog input, and 1-4.2V Hall throttle inputswitch modes via the on-board button with LED indicator. The driver defaults to 0-5V mode (potentiometer set to minimum for all external modes), enabling precise speed regulation for different motor applications. | Fast Acceleration & Safe Operation GuidelinesFeatures quick acceleration response but note: full-throttle startup at high voltage/power may cause high inrush currentleave operating margin and avoid hard direction reversal at full speed. Braking also creates strong impact; reduce speed throttle to 50% or below before braking/ reversing to prevent damage to power transistors and chips. | Dual Protection & Low-Voltage TestingEquipped with overcurrent, locked-rotor (current drops automatically after stall), and over-temperature protection (power halved in overheat). For initial wiring, always test with low voltage (5-50V) and low current first; avoid high-current/high-voltage testing during troubleshooting to protect the driver module. | User-Friendly Design & Hassle-Free SetupAll ports use durable terminal blocks for easy wiring; comes with a standard heat sink and built-in speed potentiometer. The compact size (634531mm) and lightweight (75g) make it easy to install in tight spacessimply wire correctly, power on, and the controller is ready to use for your motor projects.