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Motor Speed Controller, DC 5V-36V 3-Phase Brushless Motor Speed Control CW CCW Reversible Switch
Motor Speed Controller, DC 5V-36V 3-Phase Brushless Motor Speed Control CW CCW Reversible Switch
Motor Speed Controller, DC 5V-36V 3-Phase Brushless Motor Speed Control CW CCW Reversible Switch
Motor Speed Controller, DC 5V-36V 3-Phase Brushless Motor Speed Control CW CCW Reversible Switch
Motor Speed Controller, DC 5V-36V 3-Phase Brushless Motor Speed Control CW CCW Reversible Switch
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Motor Speed Controller, DC 5V-36V 3-Phase Brushless Motor Speed Control CW CCW Reversible Switch
Motor Speed Controller, DC 5V-36V 3-Phase Brushless Motor Speed Control CW CCW Reversible Switch
Motor Speed Controller, DC 5V-36V 3-Phase Brushless Motor Speed Control CW CCW Reversible Switch
Motor Speed Controller, DC 5V-36V 3-Phase Brushless Motor Speed Control CW CCW Reversible Switch
Motor Speed Controller, DC 5V-36V 3-Phase Brushless Motor Speed Control CW CCW Reversible Switch

Motor Speed Controller, DC 5V-36V 3-Phase Brushless Motor Speed Control CW CCW Reversible Switch

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Product Description

Governor Panel and Interface Reference
1. Electrical Performance Specifications of Governor
Voltage Range
DC 5V - 28V
Rated Current
MAX 2A (To control the motor with greater current, connect 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°C to 70°C
Storage Temperature
-30°C to 125°C
Driver Board Size
60mm (Length) x 40mm (Width)
2. Governor Wiring and 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 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, and the speed is proportional to the duty cycle.
  • 10
    Motor feedback signal input.
Notes on settings:
• The output signal changes of the three interfaces (6 to 9) are adjusted by the potentiometer.
• FG/FG*3 should be based on the actual motor feedback times whether to add a jumper cap. No jumper cap is a single times FG, increased jumper cap is 3 times FG*3. The same rules apply for CW/CCW.
3. Governor Parameter Settings
(1) Frequency Setting
Before power-on, press and hold touch switch 1. Power the governor board and wait until the screen displays "FEQ:20K" before releasing the button. Touch switch 1 to reduce the frequency and touch switch 2 to increase it. The factory default frequency is 20KHz.
(2) Number of Poles Setting
Before power-on, hold down touch switch 1 and touch switch 2 simultaneously. Power the board and wait until the screen displays "number of poles: 1 polarity" before releasing. Touch switch 1 to reduce and touch switch 2 to increase the number of poles. The factory default is 1 pole.
(3) Feedback Setting
The FG/FG*3 pin (shown in Figure 1) sets the feedback multiplier. Adjust according to whether the motor's feedback is single times FG or three times FG. Adding the jumper cap sets it to 3 times FG; removing the cap sets it to single times FG.
(4) Direction Setting
The CW/CCW pin setting configures the initial state direction of the motor. This is set according to whether the motor is CW or CCW when the motor direction control line is suspended. Add a skip cap for CCW; leave it without a skip cap for CW.
Main Display Parameters
The current screen displays the input voltage, speed, frequency, and duty cycle. For correct speed readings, the feedback (FG/FG*3) and the number of poles must be configured correctly.
4. Governor Precautions
⚠️ (1) The positive and negative power supply of the governor must be connected in accordance with the instructions and must not be reversed. Otherwise, the governor will not work and will burn out.
⚠️ (2) The governor is specifically used to match motors with the specified control interfaces.
⚠️ (3) Do not connect a voltage exceeding 5V to the five control ports (numbered 5 through 9).
Frequently Asked Questions (FAQ)
What is the working voltage range and maximum current for this governor?
The working voltage range is DC 5V-28V, and the maximum rated current is 2A. For motors requiring higher current, the motor power line must be connected directly to the power supply, bypassing the governor.
How do I adjust the PWM frequency on the governor?
Press and hold touch switch 1 before powering on, then turn on the power. Release the button when "FEQ:20K" displays on the screen. Use switch 1 to decrease and switch 2 to increase the frequency. The factory default value is 20KHz.
What happens if the positive and negative power supplies are reversed?
The positive and negative connections must not be reversed. Reversing the input polarity will prevent the governor from operating and will burn out the circuitry.
What is the purpose of the FG/FG*3 jumper cap?
The FG/FG*3 pin sets the motor feedback multiplier. Placing a jumper cap activates 3 times FG feedback (FG*3), while leaving it off configures it for single times FG feedback. This setting is crucial for correct speed calculations on the display screen.
Can I input control signals higher than 5V into the governor's terminal ports?
No, the control ports (specifically terminals 5 to 9, which include rotation direction, brake, analog voltage, and PWM outputs) cannot handle input voltages exceeding 5V. Exceeding this limit may damage the controller.

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