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BLDC DC 5-36v Brushless Sensorless Motor Control Board Driver
Product Description
1. Electrical Performance Specifications of Governor
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, not through the governor.
PWM Output Frequency
0 ~ 100KHz
Analog Voltage Output
0 - 5V
Temperature Range
Working: -10℃ to 70℃ | Storage: -30℃ to 125℃
Driver Board Size
Length 60mm X Width 40mm
2. Governor Wiring & Internal Function Description
1Governor, motor power supply positive input.
2Governor, motor power input negative.
3The positive output of the power supply of the motor.
4Negative output of the power supply of the motor.
5High 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.
6High and low level output of brake control. High level 5V, low level 0V. Controlled by touch switch 1 (BRA), power on defaults to high level.
7Analog voltage output (0~5V). This interface is suitable for accepting analog voltage speed regulation motor.
8PWM1 reverse output. This interface is suitable for the motor that accepts PWM speed regulation, and the speed is inversely proportional to the duty cycle.
9PWM2 forward output. This interface is suitable for motors that accept PWM speed regulation, the speed is proportional to the duty cycle.
Note on Adjustments & Feedback:
- The output signal changes of the three interfaces (7, 8, 9) are adjusted by the potentiometer.
- Motor feedback signal input (10): FG/FG*3 should be based on the actual motor feedback times to determine whether to add a jumper cap. No jumper cap indicates a single time FG, and an added jumper cap indicates 3 times FG*3. The same applies to CW/CCW.
3. Governor Parameter Settings
- Frequency setting: Press and hold touch switch 1 before power-on. Power the governor board and wait until the screen displays "FEQ:20K" before releasing the button. Touch switch 1 to decrease and touch switch 2 to increase. The factory default is 20KHz.
- Number of poles set: Before power-on, hold down light touch switch 1 and 2 simultaneously. Power the board and wait until the screen shows "number of poles: 1 polarity" before releasing the buttons. Use switch 1 to decrease and switch 2 to increase. The factory default is 1 pole.
- Feedback setting: Set the FG/FG*3 pin according to the motor multiplier. Adding the jumper cap sets it to 3 times FG, while removing it sets it to a single time FG.
- Direction setting: The CW/CCW pin configures the initial direction state of the motor. CCW is configured by adding a skip cap, and CW by removing it.
- Main Screen Details: The screen displays the input voltage, speed, frequency, and duty cycle. The speed display relies on correct FG/FG*3 and pole number configurations.
4. Governor Precautions
Important Safety Instructions
- The positive and negative power supply of the governor must be connected in accordance with the instructions. Do not reverse them, otherwise the governor will not work and will burn out.
- The governor must be used to match motors that correspond with the specified control interface.
- The five ports (5, 6, 7, 8, 9) must not access a voltage exceeding 5V.
Frequently Asked Questions (FAQ)
What is the input voltage range and maximum current for this governor?
The governor operates within a voltage range of DC 5V-28V, and supports a maximum rated current of 2A. For motors requiring larger currents, the motor power line must be connected directly to the power supply rather than through the governor.
What happens if the positive and negative power inputs are reversed?
Reversing the positive and negative power connections will damage and burn out the governor. Always double-check your connections according to the wiring instructions before powering on the device.
How do I adjust the PWM output frequency settings?
To adjust the frequency, press and hold touch switch 1 before powering on the board. Power the governor on and release the switch when the screen displays "FEQ:20K". Then use touch switch 1 to decrease and touch switch 2 to increase the frequency. The factory default value is 20KHz.
How do I set the number of poles for my motor?
Before powering on the governor, hold down touch switches 1 and 2 simultaneously. Power the board and release the switches when the screen shows "number of poles: 1 polarity". You can then use touch switch 1 to decrease or touch switch 2 to increase the pole count. The factory default setting is 1 pole.
What is the purpose of the FG/FG*3 and CW/CCW jumper caps?
The FG/FG*3 jumper cap configures the feedback multiplier (no cap for single FG, cap added for 3x FG). The CW/CCW jumper cap sets the initial direction of the motor (no cap for Clockwise (CW), cap added for Counter-Clockwise (CCW)) when the motor direction control line is suspended.
What voltage limits apply to the control signal ports?
The five control signal ports (including the positive/negative rotation control, brake control, analog voltage output, and PWM outputs) cannot access any voltage higher than 5V. Exceeding this limit may damage the board interfaces.
