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DC BLDC Motor LCD Speed Controller PWM Controller 12V 24V Adjustable PWM Motor Speed Regulator 12V 24V
Product Description
1. Electrical Performance Specifications
- Voltage Range: DC 5V - 28V
- Rated Current: MAX 2A. To control the motor with greater current, the motor power line should be directly connected to the power supply, not through the governor.
- PWM Output Frequency: 0 - 100KHz
- Analog Voltage Output: 0 - 5V
- Working Temperature: -10°C to 70°C | Storage Temperature: -30°C to 125°C
- Driver Board Size: Length 60mm X Width 40mm
2. 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 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.
⑩
Motor feedback signal input.
Potentiometer Adjustment: The output signal changes of the three interfaces (⑤ to ⑨) are adjusted by the potentiometer.
Feedback Setting (FG/FG*3): Should be based on the actual motor feedback times whether to add a jumper cap. No jumper cap configures single times FG, whereas an added jumper cap sets it to 3 times FG*3. The same rule applies for CW/CCW direction control settings.
Feedback Setting (FG/FG*3): Should be based on the actual motor feedback times whether to add a jumper cap. No jumper cap configures single times FG, whereas an added jumper cap sets it to 3 times FG*3. The same rule applies for CW/CCW direction control settings.
3. Governor Parameter Settings
(1) Frequency Setting
Before power-on, press and hold the touch switch 1. Turn on the power, and wait until the screen displays "FEQ:20K" before releasing the switch. Touch switch 1 to decrease, and switch 2 to increase. The factory default is 20KHz.
(2) Pole Number Setting
Before power-on, hold down touch switches 1 and 2 simultaneously. Power on the board and wait for "number of poles: 1 polarity" to appear on screen before releasing. Switch 1 decreases, while switch 2 increases. The factory default is 1 pole.
(3) Feedback Setting
Set via the FG/FG*3 pin. Configure based on whether the feedback multiplier of the motor is single times FG (no jumper cap) or three times FG (with jumper cap added).
(4) Direction Setting
Configure the CW/CCW pin for the initial state of the motor. Adjust according to whether the motor defaults to CW or CCW when the control line is suspended. Add a skip cap for CCW; leave it without a skip cap for CW.
Screen Interface: The primary screen displays input voltage, speed, frequency, and duty cycle. To show the correct speed, you must configure the proper FG/FG*3 feedback and pole numbers.
4. Governor Precautions
- No Reversal: The positive and negative power supplies must be connected in accordance with the instructions. Do not reverse them, otherwise the governor cannot function and will burn out.
- Application: The governor is specifically used to match the motor configurations with the control interface specified above.
- Voltage Limit: Do not supply more than 5V of voltage to the five control ports (⑤ through ⑨).
Frequently Asked Questions
Q
What is the compatible voltage and rated current for this governor?
The governor operates within a DC 5V-28V voltage range with a rated current of MAX 2A. For motors requiring larger currents, connect the motor power line directly to the power supply rather than through the governor board.
Q
How can I adjust the default PWM output frequency?
Hold touch switch 1 and power on the governor board. Wait until the screen displays "FEQ:20K", then release the button. Use switch 1 to decrease or switch 2 to increase the frequency. The default setting is 20KHz.
Q
How do I configure the motor's pole settings?
Hold down switches 1 and 2 simultaneously before powering on. Release them once the screen shows "number of poles: 1 polarity". Adjust the pole number with switch 1 (to reduce) or switch 2 (to increase) to match the motor's design. The default is 1 pole.
Q
What is the difference between FG and FG*3 feedback settings?
This is adjusted using the FG/FG*3 jumper cap. A single FG signal requires no jumper cap, while adding the jumper cap multiplies the feedback signal to 3 times (FG*3). The correct setting is necessary for accurate speed display.
Q
Can I input external voltages to the control interfaces?
No, the control ports numbered ⑤ through ⑨ (including direction control, brake control, analog voltage, and PWM outputs) cannot accept any voltage input that exceeds 5V, otherwise it will damage the device.
Q
What happens if the positive and negative power connections are reversed?
The positive and negative terminals must be wired exactly as specified. Reversing the input polarity will prevent the governor from operating and will burn out the unit.
