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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 of Governor
- Voltage range: DC 5V - 28V
- Rated current: MAX 2A. To control the motor with greater current, the motor power line must 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: 60mm (Length) x 40mm (Width)
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), 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.
10
Motor feedback signal input.
Adjustment Note (Interfaces 5 - 9): The output signal changes of these interfaces are adjusted by the potentiometer.
Feedback Configuration (FG/FG*3): This should be based on the actual motor feedback times to determine whether to add a jumper cap. No jumper cap signifies single times FG; an added jumper cap represents 3 times FG (FG*3). The same principle applies to CW/CCW configuration.
Feedback Configuration (FG/FG*3): This should be based on the actual motor feedback times to determine whether to add a jumper cap. No jumper cap signifies single times FG; an added jumper cap represents 3 times FG (FG*3). The same principle applies to CW/CCW configuration.
3. Governor Parameter Settings
(1) Frequency Setting
Press and hold touch switch 1 before powering on, then power the governor board. Wait until the screen displays "FEQ:20K", then release the button. Touch switch 1 to decrease the frequency, and touch switch 2 to increase it. The factory default is 20KHz.
(2) Pole Number Setting
Before powering on, press and hold both touch switch 1 and touch switch 2. Power the governor board and release the buttons when the screen shows "number of poles: 1 polarity". Press touch switch 1 to decrease or touch switch 2 to increase. The adjustable pole number is configured based on the designed motor poles. The factory default is 1 pole.
(3) Feedback Setting
The FG/FG*3 pin is used to set the feedback multiplier. Adjust this according to whether the feedback multiplier of the motor is single times FG or three times FG. Adding a jumper cap configures the setting to 3 times FG, while removing the jumper cap configures it to single times FG.
(4) Direction Setting
The CW/CCW pin configures the direction setting of the motor in its initial state. This setting depends on whether the motor runs in CW or CCW direction when the motor direction control line is suspended. Add a skip cap for CCW, and leave it without a skip cap for CW.
Main Screen Display: The current screen primarily displays four metrics: input voltage, speed, frequency, and duty cycle. The speed must be configured properly in accordance with the FG/FG*3 feedback and pole settings to display correctly.
4. Governor Precautions
- The positive and negative power supply of the governor must be connected accurately in accordance with the instructions. Do not reverse connections; doing so will prevent operation and damage the governor.
- The governor must be used only to match motors that feature the compatible control interfaces specified above.
- Ports 5 to 9 (five ports total) cannot receive a voltage input exceeding 5V.
Frequently Asked Questions (FAQ)
What is the voltage range and maximum current for this governor?
The governor supports an input voltage range of DC 5V to 28V. The maximum rated current is 2A. If you need to control a motor requiring a higher current, the motor power line must be connected directly to the power supply, bypassing the governor.
How can I adjust the PWM frequency on the governor?
Press and hold touch switch 1 before powering on, then turn on the board. Release the button when the screen displays "FEQ:20K". You can then use touch switch 1 to decrease the frequency or touch switch 2 to increase it. The factory default setting is 20KHz.
How do I configure the motor pole number setting?
Before powering on the governor, hold down both touch switch 1 and touch switch 2 simultaneously. Power on the board and release the buttons when the screen shows "number of poles: 1 polarity". Adjust using touch switch 1 (to decrease) and touch switch 2 (to increase). The default setting is 1 pole.
What is the purpose of the FG/FG*3 jumper cap setting?
The FG/FG*3 setting is used to configure the motor's feedback signal multiplier. Keep the jumper cap off for a single FG feedback, or add the jumper cap to configure it for 3 times feedback (FG*3), depending on the motor’s requirements.
What happens if the positive and negative power inputs are reversed?
Reversing the positive and negative power supply connections will prevent the governor from working and will permanently burn out the board. Ensure proper polarity alignment during wiring.
