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

Voltage Range: DC 5V - 28V
Rated Current: MAX 2A (To control motors with greater current, connect the motor power line directly to the power supply instead of through the governor)
PWM Output Frequency: 0 ~ 100KHz
Analog Voltage Output: 0 - 5V
Working Temperature: -10℃ to 70℃
Storage Temperature: -30℃ to 125℃
Driver Board Size: 60mm (Length) x 40mm (Width)

2. Parameter Settings

Frequency Setting: Hold touch switch 1 before powering on, then power the board. Release when "FEQ:20K" displays. Press switch 1 to decrease or switch 2 to increase. (Factory default: 20KHz)
Poles Setting: Hold both switch 1 and 2 before powering on. Power the board, release when "poles: 1 polarity" displays. Press switch 1 to decrease or switch 2 to increase. (Factory default: 1 pole)
Feedback Setting: Use the FG/FG*3 pin. Set based on the motor feedback multiplier. Adding a jumper cap sets it to 3x FG; leaving it without a cap sets it to single FG.
Direction Setting: Use the CW/CCW pin to set the initial motor state. Add a jumper cap for CCW, or leave it off for CW.
Main Screen Display: Displays input voltage, speed, frequency, and duty cycle. Speed requires correct FG/FG*3 and pole number configuration.

3. Governor Wiring & Internal Functions

1Power Input (+): Governor and motor power supply positive input.
2Power Input (-): Governor and motor power input negative.
3Motor Output (+): Positive output connection to the motor.
4Motor Output (-): Negative output connection to the motor.
5Rotation Control (F/R): High and low level output for positive/negative rotation. High level is 5V, low level is 0V. Controlled by touch switch 2 (Default: High level).
6Brake Control (BRA): High and low level output for braking control. High level is 5V, low level is 0V. Controlled by touch switch 1 (Default: High level on power-on).
7Analog Voltage Output: 0~5V output interface, suitable for motors that accept analog voltage speed regulation.
8PWM1 Reverse Output: Suitable for motors accepting PWM speed regulation where speed is inversely proportional to the duty cycle.
9PWM2 Forward Output: Suitable for motors accepting PWM speed regulation where speed is proportional to the duty cycle.
10Feedback Input: Motor feedback signal input.

Note on Outputs (5 to 9): The output signal changes of these interfaces are adjusted via the potentiometer.
Note on FG & CW/CCW Jumpers: FG/FG*3 jumper cap addition depends on actual motor feedback times (no cap = single FG, with cap = 3x FG). The same logic applies to CW/CCW configuration.

Important Safety Precautions

The positive and negative power supplies of the governor must be connected strictly according to the instructions. Do not reverse the polarity, otherwise the governor will fail to work and will burn out.
This speed governor is specifically designed to match motors equipped with the control interfaces described above.
Do not apply voltage exceeding 5V to any of the five control ports (numbered 5 through 9).

Frequently Asked Questions (FAQ)

Q What is the input voltage range of this speed governor?

The working voltage range for this governor is DC 5V to 28V.

Q How can I control a motor that requires more than 2A of current?

The rated current of the board is MAX 2A. To control a motor with a higher current requirement, connect the motor's power line directly to the external power supply instead of routing it through the governor.

Q How do I adjust the PWM frequency settings?

Press and hold touch switch 1 before powering on the board. Turn on the power and release the switch when "FEQ:20K" appears on the screen. You can then press switch 1 to decrease the frequency or switch 2 to increase it.

Q What happens if I reverse the positive and negative power connections?

Reversing the power input polarity will damage the unit. It will prevent the governor from working and will burn out the circuitry.

Q What is the maximum voltage limit for the control ports?

The five control ports (rotation, brake, analog output, PWM1, and PWM2) must never be connected to a voltage source exceeding 5V.

Q How do I set the feedback multiplier and motor direction?

These are set using jumper caps. For feedback (FG/FG*3), adding the jumper cap sets it to 3x FG, while removing it sets it to single FG. For direction (CW/CCW), adding the cap configures it to CCW initial state, and removing it configures it to CW.