BLDC DC 5-36v Brushless Sensorless Motor Control Board Driver

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BLDC DC 5-36v Brushless Sensorless Motor Control Board Driver

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Product Description

1. Electrical Performance Specifications of Governor

⚡ Voltage range: DC5V-28V.
⚡ Rated current: MAX2A (To control the motor with greater current, the motor power line is directly connected to the power supply, not through the governor).
⚡ PWM output frequency: 0~100KHz.
⚡ Analog voltage output: 0-5V.
⚡ Working temperature: -10℃ - 70℃ | Storage temperature: -30℃ - 125℃.
⚡ Driver board size: length 60mm X width 40mm.

2. Governor Wiring and Internal Function Description

① Governor, motor power supply positive input.
② Governor, motor power input negative.
③ The positive output of the power supply of the motor.
④ Negative output of the power supply of the motor.
⑤ High and low level output of positive and negative rotation control, high level 5V, low level 0V, controlled by touch switch 2 (F/R), the default is high level.
⑥ High and low level output of brake control, high level 5V, low level 0V, controlled by touch switch 1 (BRA), power on the default high level.
⑦ Analog voltage output (0~5V), this interface is suitable for accepting analog voltage speed regulation motor.
⑧ PWM1 reverse output, this interface is suitable for the motor that accepts PWM speed regulation, and the speed is inversely proportional to the duty cycle.
⑨ PWM2 forward output, this interface is suitable for motors that accept PWM speed regulation, the speed is proportional to the duty cycle.
➔ ⑤-⑨ Output signal changes: The output signal changes of the three interfaces are adjusted by the potentiometer.
⑩ Motor feedback signal input.

Note on Jumper Caps:

FG/FG*3 should be based on the actual motor feedback times whether to add a jumper cap, no jumper cap is a single times FG, increased jumper cap is 3 times FG*3. The same goes for CW/CCW.

3. Governor Parameter Settings

⚙️ Frequency setting: Press and hold the touch switch 1 before power-on, do not release, and then power the governor board. Wait until the screen displays "FEQ:20K" before releasing the button. Then, touch switch 1 to reduce or touch switch 2 to add. Adjustable frequency to specified frequency, factory default is 20KHz.
⚙️ Number of poles set: Before power-on, simultaneously hold down touch switch 1 and touch switch 2 without releasing, then power the governor board. Wait until the screen shows "number of poles: 1 polarity" to release the buttons. Touch switch 1 to reduce, touch switch 2 to add. The factory default is 1 pole.
⚙️ Feedback setting: The FG/FG*3 pin is set as the feedback multiple. Adding the jumper cap sets it to 3 times FG; not adding the jumper cap sets it to a single FG.
⚙️ Direction setting: The CW/CCW pin is the initial direction setting. CCW has a skip cap added; CW has no skip cap.
⚙️ Main Screen: Displays input voltage, speed, frequency, and duty cycle. The speed must be set to normal display FG/FG*3 and pole number.

4. Governor Precautions

Important Safety Warning

⚠️ The positive and negative power supply of the governor must be connected in accordance with the instructions, and must not be reversed; otherwise, the governor cannot work and will burn out.
⚠️ The governor is used to match the motor with the above-mentioned control interface.
⚠️ Ports ⑤ to ⑨ cannot access more than 5V voltage.

Frequently Asked Questions (FAQ)

What is the working voltage and rated current of the governor?

The input voltage range is DC5V-28V, and the rated current is MAX2A. For motors requiring larger currents, the motor power line should be connected directly to the power supply instead of passing through the governor board.

How do I adjust the output signal changes for ports 5 to 9?

The output signal changes of the three control interfaces are adjusted using the onboard potentiometer.

How do I change the PWM frequency settings?

Press and hold touch switch 1 before powering on, then turn on the power. Release the button when the screen displays "FEQ:20K". Press switch 1 to decrease the value and switch 2 to increase it. The factory default setting is 20KHz.

How do I configure the motor pole number setting?

Hold down both touch switch 1 and touch switch 2 simultaneously before power-on, then power the board. Release the buttons once the screen displays "number of poles: 1 polarity". Use switch 1 to decrease and switch 2 to increase the pole count. The factory default is 1 pole.

What is the purpose of the FG/FG*3 jumper cap?

It sets the feedback multiplier of the motor. Not adding the jumper cap defaults to a single times FG, while adding the jumper cap sets it to 3 times FG*3. Adjust this based on your actual motor's feedback requirements.

What are the critical wiring rules to prevent damage to the governor?

First, the positive and negative power supply inputs must be connected correctly and never reversed to avoid burning the unit. Second, do not apply a voltage exceeding 5V to the control ports ⑤ through ⑨.