Key benefits Simple, reliable control with a single button: stepless speed regulation using a potentiometer, no external control signals required. Wide voltage range for versatile applications: 626V input, suitable for compact, power BLDC motors. Sensorless threephase operation: Hallfree control board provides dependable performance without Hall sensors. Flexible control options: singlebutton model with 100level acceleration/deceleration switching and a memory function; potentiometer governor with 04.5V analog input for smooth, continuous speed control. Compact, power design: small form factor delivers strong performance in tight spaces. What this product is A threephase brushless DC motor controller with a wide voltage range (626V) and compact, power capability. Equipped with a singlebutton potentiometer for effortless, stepless speed control; no external trigger signals needed to operate. Sensorless (Hallfree) control board for reliable brushless motor commutation. Two control configurations available: Singlebutton model: 100level acceleration and deceleration switching with a builtin memory function for quick reengagement. Potentiometer governor model: 04.5V analog input providing stepless speed regulation. Designed to drive a threephase brushless motor directly with power on, ensuring straightforward integration. Key specifications and features Voltage range: 626V Type: threephase brushless controller Control method: singlebutton potentiometer for stepless speed control; memory function available Acceleration/deceleration: 100level switching in the singlebutton model Analog control: potentiometer governor with 04.5V input for analog, continuous speed regulation Sensor configuration: Hallfree (sensorless) control board for motor commutation Operation: starts and runs when powered; no external signal required Form factor: compact, power design suitable for small devices and tight spaces Compatibility and integration Works with threephase brushless motors compatible with sensorless operation Suitable for applications requiring simple user control with a single button or external analog speed input Ideal for compact devices where a small, power controller is needed and where external signaling is not available Use scenarios Portable beltdrive systems or small conveyors: use the singlebutton model for quick rampup and rampdown with memory function to repeat preferred speeds, powered directly from a 626V supply. Handheld or compact tools: sensorless control with a singlebutton interface provides straightforward operation without wiring external signals, while the analog option allows external speed tuning from a control device. DIY robotics or small automation modules: the sensorless threephase controller with 04.5V analog input enables precise, continuous speed control for lightweight robotic actuators in constrained spaces. Notes on operation The drive begins operation as soon as power is supplied, with speed controlled via the configured input method (singlebutton potentiometer or 04.5V analog input). No external control signals are required for basic operation, simplifying setup and connectivity. The Hallfree sensorless design reduces the need for motor encoders or Hall sensors, easing integration in compatible motor systems. This product delivers a compact, power BLDC controller with flexible, userfriendly controls, broad compatibility across 626V systems, and reliable sensorless operation suitable for a range of small motor applications.