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DC Motor Speed Controller DC 12V 24V DC Brushless Motor Speed Controller With Forward-Brake-Reverse Switch Ajustable Display
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DC Motor Speed Controller DC 12V 24V DC Brushless Motor Speed Controller With Forward-Brake-Reverse Switch Ajustable Display
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 is directly connected to the power supply, not through the governor.
PWM Output Frequency
0 ~ 100KHz
Analog Voltage Output
0 - 5V
Working & Storage Temp
Working: -10℃ to 70℃ Storage: -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), 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.
Note: The output signal changes of the three interfaces (7 to 9) are adjusted by the potentiometer.
Feedback Configurations: 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 and wait until the screen displays "FEQ:20K" to release the button. Touch switch 1 to decrease, and touch switch 2 to increase. The adjustable frequency goes to the specified value (factory default is 20KHz).
(2) Number of poles setting:
Before power-on, hold down light touch switch 1 and light touch switch 2 simultaneously. Power the governor board and wait until the screen shows "number of poles: 1 polarity" to release the buttons. Light touch switch 1 decreases the value, and light touch switch 2 increases it. The pole number should match the design of the motor (factory default is 1 pole).
(3) Feedback setting:
The FG/FG*3 pin is used as the feedback multiple. Set it 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, while removing it sets it to single times FG.
(4) Direction setting:
The CW/CCW pin configures the direction of the motor in its initial state. Set it based on whether the motor runs CW or CCW when the direction control line is suspended. Add a skip cap for CCW, and remove it for CW.
Main Interface Display: The active screen displays the input voltage, speed, frequency, and duty cycle. For the speed to display normally, the FG/FG*3 feedback and pole number parameters must be properly configured.
4. Governor Precautions & Warnings
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 be burned.
The governor must only be used to match motors that feature the specified control interfaces.
The five control ports (numbered 5 through 9) must not access any voltage exceeding 5V.
Frequently Asked Questions (FAQ)
Q:
What is the compatible input voltage and current limit for this governor?
The governor operates within a voltage range of DC 5V-28V with a rated maximum current of 2A. For motors demanding higher current, connect the motor power line directly to your power supply instead of routing it through the governor.
Q:
How do I adjust the PWM frequency settings on the device?
Before powering on, press and hold switch 1. Turn on the power and release switch 1 once "FEQ:20K" appears. You can then decrease the frequency using switch 1 or increase it using switch 2. The factory default value is set to 20KHz.
Q:
What will happen if the positive and negative power supplies are connected incorrectly?
You must ensure the positive and negative power lines are correctly connected as directed. Reversing the polarity will damage the unit, preventing operation and burning out the governor circuitry.
Q:
How does the FG/FG*3 jumper cap config affect motor feedback?
The jumper cap configures the feedback multiplier. If no jumper cap is installed, the governor registers a single-time FG feedback. When the jumper cap is applied, it increases the feedback multiplier to 3 times FG*3.
Q:
What is the voltage limit for the external control signal ports?
The five control ports (namely the rotation control, brake control, analog voltage output, PWM1 reverse output, and PWM2 forward output) cannot be subjected to a voltage input exceeding 5V.
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