Sensorless BLDC Motor Driver Control PCBA Universal Retrofit Control Module

HVAC BLDC Driver Boards

FCU BLDC Driver Boards

M1: Sensorless Version

Sensorless BLDC Motor Driver PCBA is engineered specifically for the commercial HVAC aftermarket, this control board is the ultimate solution for PSC-to-ECM energy efficiency retrofits in Fan Coil Units (FCUs), PTACs, and ventilation systems.

By eliminating fragile physical Hall sensors, this board delivers unmatched reliability in harsh HVAC environments (moisture, vibration, and dust) while drastically lowering system failure rates. Its intelligent interface seamlessly bridges legacy building automation outputs with modern 3-phase high-efficiency brushless motors, allowing contractors to complete drop-in upgrades without rewriting building control logic.

>> Key Features

Sensorless FOC / Sinusoidal Drive: Delivers ultra-quiet motor operation and eliminates the need for fragile hall sensors, significantly lowering the failure rate in high-vibration fan environments.
Field Programmable / CFM Calibration: Features onboard DIP switches or a plug-and-play tuning interface, allowing field engineers to adjust maximum/minimum RPM, ramping speeds, or constant torque parameters on-site to match specific fan wheel aerodynamics.
Smart Automation Integration: Equipped with auxiliary 0-10V DC and PWM control inputs, making it fully ready to integrate with modern Building Management Systems (BMS) and smart controllers.
VARIANTS: 1. 0-10V fan speed control; 2. 3 fan speed control; 3. PWM speed control; 4. RS485

>> Technical Specifications

Model	YTCM1	Input	220VAC
Output	UWW three wire	Working Voltage	170-240VAC
Standby Power	x＜0.5W	Max Power	80W
Max & Min Speed	1500RMP & 200RMP	PCB Board Size	L 110 x W 92 x H25 mm