DC Motor Speed Controller DC 12V 24V DC Brushless Motor Speed Controller With Forward-Brake-Reverse Switch Ajustable Display

Product Description

Governor Specifications and Wiring Diagram
1. Electrical Performance Specifications of Governor
  • Voltage range: DC5V-28V.
  • Rated current: MAX 2A. To control a 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.
  • Temperature limits: Working temperature: -10℃ to 70℃ | Storage temperature: -30℃ to 125℃.
  • Driver board size: Length 60mm X Width 40mm.
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, the speed is proportional to the duty cycle.
10 The output signal changes of the three interfaces (6 to 9) are adjusted by the potentiometer.
11 Motor feedback signal input.
Note:
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: Press and hold touch switch 1 before power-on and do not release. Power the governor board. Wait until the screen displays "FEQ:20K" before releasing the button. Touch switch 1 to decrease and touch switch 2 to add. The frequency is adjustable to your specified frequency (factory default is 20KHz).
  • (2) Number of poles setting: Before power-on, hold down both light touch switch 1 and light touch switch 2 and do not release. Power the governor board. Wait until the screen shows "number of poles: 1 polarity" before releasing the buttons. Light touch switch 1 decreases the count, and light touch switch 2 increases it. Adjustable pole number depends on the motor design (factory default is 1 pole).
  • (3) Feedback setting: The FG/FG*3 pin is set as the feedback multiple. This is adjusted according to whether the feedback multiplier of the motor is single times FG or three times FG. Adding the jumper cap sets it to 3 times FG, and omitting the jumper cap sets it to single times FG.
  • (4) Direction setting: The CW/CCW pin is 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 requires the skip cap added; CW requires no skip cap.
Main Display:
The current screen mainly displays four metrics: input voltage, speed, frequency, and duty cycle. The speed display requires the normal setup of FG/FG*3 and the pole number.
4. Governor Precautions
  • (1) Correct Power Connection: 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 may burn.
  • (2) Motor Compatibility: The governor is designed to match motors configured with the control interfaces described above.
  • (3) Port Voltage Limits: Ports 5 through 9 must not be accessed with a voltage higher than 5V.
Frequently Asked Questions (FAQ)
Q1 What is the input voltage range of this motor speed governor?
The governor operates within a voltage range of DC 5V to 28V.
Q2 Can I use this governor to control a motor that requires more than 2A of current?
The governor's rated current limit is MAX 2A. To control a motor with a greater current demand, the motor's power line must be connected directly to the power supply instead of routed through the governor.
Q3 How do I set and adjust the frequency of the governor?
Before powering on, press and hold touch switch 1. Turn on the power and wait until the screen displays "FEQ:20K" before releasing the button. You can then use touch switch 1 to decrease the frequency and touch switch 2 to increase it.
Q4 What is the process for configuring the motor pole settings?
Hold down both light touch switch 1 and 2 before powering on. Connect the power to the board and release the switches when "number of poles: 1 polarity" is displayed. Use switch 1 to decrease or switch 2 to increase to match your motor's design.
Q5 What happens if the positive and negative power inputs are reversed?
The positive and negative terminals must be connected exactly as instructed. Reversing the connections will prevent the unit from working and will permanently burn out the governor.
Q6 What is the voltage limit for the control ports?
Ports 5 through 9 (including direction control, brake control, analog voltage, and PWM outputs) are designed for low-voltage signals and must not be connected to any voltage source exceeding 5V.

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