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DC Motor Speed Controller DC 12V 24V DC Brushless Motor Speed Controller With Forward-Brake-Reverse Switch Ajustable Display
Product Description
1
Electrical Performance Specifications of Governor
Voltage Range
DC 5V - 28V
Rated Current
MAX 2A (To control motors with higher current, connect the motor power line directly to the power supply, bypassing 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
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 is high level.
7
Analog voltage output (0~5V): Suitable for motors accepting analog voltage speed regulation.
8
PWM1 reverse output: Suitable for motors accepting PWM speed regulation where speed is inversely proportional to the duty cycle.
9
PWM2 forward output: Suitable for motors accepting PWM speed regulation where speed is proportional to the duty cycle.
10
Motor feedback signal input (Note: FG/FG*3 jumper cap addition depends on actual motor feedback times. Without jumper cap is single times FG; with jumper cap is 3 times FG*3. The same applies for CW/CCW).
Adjustment Note: The output signal changes of interfaces 5 through 9 are adjusted via the potentiometer.
3
Governor Parameter Settings
(1) Frequency setting: Press and hold touch switch 1 before powering on. Power on 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 adjustable frequency goes to the specified frequency (factory default is 20KHz).
(2) Number of poles setting: Before powering on, hold down touch switch 1 and touch switch 2 simultaneously. Power the board and wait until the screen shows "number of poles: 1 polarity" to release the buttons. 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 acts as the feedback multiple. Set according to whether the motor feedback multiplier is single FG (no jumper cap) or 3 times FG (with jumper cap).
(4) Direction setting: The CW/CCW pin configures the initial state of the motor. CCW is set with the skip cap added; CW is set without the skip cap when the motor direction control line is suspended.
Main Interface Display: The screen displays the current input voltage, speed, frequency, and duty cycle. The speed must be configured properly to display FG/FG*3 and the pole number.
4
Governor Precautions
⚠️ Critical Safety Instructions
• The positive and negative power supply must be connected correctly as instructed. Reversing connections will damage and burn the governor.
• Ensure the governor matches a motor containing the compatible control interfaces specified above.
• Ports 5 through 9 must never access a voltage exceeding 5V.
Frequently Asked Questions (FAQ)
What is the input voltage and maximum current capacity of the governor?
The input voltage range is DC 5V-28V, and the rated current is MAX 2A. For motors requiring more current, the motor power line must be connected directly to the power supply rather than through the governor.
How can I adjust the frequency settings?
Before powering on, press and hold touch switch 1. Power up the board, and when "FEQ:20K" displays on screen, release the button. You can then use touch switch 1 to decrease and touch switch 2 to increase the frequency.
How do I change the initial direction setting of the motor?
Direction settings are controlled by the CW/CCW pin. Add a skip cap for CCW settings, and leave it off (without a skip cap) for CW configurations.
What is the difference between FG and FG*3 feedback settings?
Feedback settings depend on your motor's configuration. Without a jumper cap, the feedback is single times FG. Adding the jumper cap enables a 3-times multiplier (FG*3).
Are there voltage limitations on the control ports?
Yes. Ports 5 through 9 (including F/R control, brake control, analog voltage speed regulation, and PWM outputs) cannot access any voltage greater than 5V.
What happens if I reverse the positive and negative power connections?
Reversing the positive and negative power supply connections will cause the governor to fail immediately and will burn the board. Always double-check polarity before powering.
