Description
RioRand PWM DC Brushless Electric Motor Speed Controller
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- 1.Three-Phase DC Brushless Sensorless Motor Controller: Works normally even without Hall sensors on the motor. It’s a high-power (300W) three-phase high-speed DC brushless sensorless controller with wide DC voltage range (5-50V). Speed control supports three signal inputs: PWM signal, PLC 0-5V analog signal, and 1-4.2V Hall throttle input.
- 2.The brushless sensorless motor controller has fast acceleration response. When powering on and starting at full throttle, the instantaneous starting current is very high—leave a safety margin, and do not perform direction reversal startup at full throttle under high voltage and high power. Additionally, braking causes significant impact: do not brake when the motor runs at full speed under high voltage; forced operation may damage power transistors and chips. It is recommended to reduce the speed throttle to 50% or below before performing these operations.
- 3.Reversing the positive and negative terminals of the power supply on the main board will cause permanent damage to some on-board chips (even for a few seconds under high current). Do not connect motors with significantly mismatched voltage, current, or power relative to the driver module.
- 4.During normal operation, the motor output has sampled overcurrent protection. Due to the module’s high power and current, do not manually short-circuit the module when it is not working properly—short-circuiting may burn wires or blow transistors. For the first wiring test, use low current and low voltage; only after confirming it works properly, switch to high current and high voltage. Never let high voltage come into contact with components on the board.
- 5.The brushless sensorless controller delivers more stable performance. All interfaces use terminal blocks, it comes with a standard heat sink, and has a built-in speed potentiometer—it’s ready to use right after powering on (once wired correctly).
