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BLDC DC 5-36v Brushless Sensorless Motor Control Board Driver
Product Description
Electrical Performance Specifications of Governor
Voltage Range
DC 5V - 28V
Rated Current
MAX 2A
Note: To control the motor 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
Working Temperature
-10℃ to 70℃
Storage Temperature
-30℃ to 125℃
Driver Board Size
60mm (L) X 40mm (W)
Governor Wiring & 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), 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 default is 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 motors that accept 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, where the speed is proportional to the duty cycle.
10
Motor feedback signal input.
Adjustment Note: The output signal changes of the three interfaces (5 to 9) are adjusted by the potentiometer.
Feedback & Direction Settings: FG/FG*3 should be configured based on the actual motor feedback times to determine whether to add a jumper cap. No jumper cap signifies single-time FG, while an added jumper cap provides 3 times FG*3. The same logic applies to CW/CCW.
Governor Parameter Settings
(1) Frequency Setting
Press and hold touch switch 1 before powering 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.
(2) Number of Poles Setting
Before powering on, hold down touch switch 1 and touch switch 2 simultaneously. Power the governor board and wait until the screen shows "number of poles: 1 polarity" before releasing. Touch switch 1 to decrease and touch switch 2 to increase. The factory default is 1 pole.
(3) Feedback Setting
The FG/FG*3 pin is used to set the feedback multiplier. Set this according to whether the feedback multiplier of the motor is single-time FG or three-time FG. Adding the jumper cap sets it to 3 times FG, while leaving it off sets it to a single-time FG.
(4) Direction Setting
The CW/CCW pin configures the direction setting of the motor in its initial state. This is set according to whether the motor is CW or CCW when the motor direction control line is suspended. CCW is configured with the jumper cap added; CW is set without the jumper cap.
Main Display View
The main screen displays four key metrics: Input Voltage, Speed, Frequency, and Duty Cycle. For the speed parameter to display correctly, you must properly configure the FG/FG*3 feedback multiplier and the number of poles.
Governor Precautions
⚠ Danger:
The positive and negative power supply connections of the governor must follow the instructions strictly. Do not reverse the connections; doing so will prevent operation and burn the governor board.
ℹ Notice:
The governor is specifically designed to match motors equipped with the corresponding control interfaces mentioned above.
⚠ Warning:
The five control ports (from 5 to 9) must not access a voltage exceeding 5V.
Frequently Asked Questions
What are the input voltage and current limits for this governor?
The governor supports an input voltage range of DC 5V-28V with a rated maximum current of 2A. If you need to control a motor requiring higher current, the motor power line must be connected directly to the power supply rather than running through the governor board.
How do I adjust the PWM frequency on the governor?
Hold down touch switch 1 before powering on the board. Once powered, release the button when "FEQ:20K" appears on the display. You can then touch switch 1 to decrease or touch switch 2 to increase the value to your preferred frequency. The factory default setting is 20KHz.
What is the process for setting the number of motor poles?
Simultaneously hold down both touch switch 1 and touch switch 2 before turning on the power. After powering on, release the buttons when the screen reads "number of poles: 1 polarity". Use touch switch 1 to decrease or touch switch 2 to increase the value to match your motor's configuration (factory default is 1 pole).
How do the FG/FG*3 and CW/CCW jumper settings work?
These pins adjust settings using jumper caps. For feedback (FG/FG*3), applying the jumper cap increases the feedback multiplier to 3x, while leaving it off keeps it at 1x. For direction (CW/CCW), adding the jumper cap sets the default state to CCW, whereas leaving it off sets it to CW when the control lines are suspended.
What happens if the positive and negative power supply lines are reversed?
Reversing the positive and negative power connections will cause critical damage. It will prevent the unit from functioning and will immediately burn out the governor board. Always double-check your polarity before applying power.
What is the maximum voltage allowable on the control ports?
The control ports (specifically ports 5 through 9) are rated for low-voltage signals. You must ensure that no voltage exceeding 5V is connected to these ports to prevent damage to the governor.
