1 / 5
Motor Speed Controller, DC 5V-36V 3-Phase Brushless Motor Speed Control CW CCW Reversible Switch
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 is 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: Length 60mm X Width 40mm.
2 Wiring & Internal Functions
- 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 high level.
- 7 Analog voltage output (0~5V), suitable for accepting analog voltage speed regulation motor.
- 8 PWM1 reverse output, suitable for motor accepting PWM speed regulation (speed is inversely proportional to duty cycle).
- 9 PWM2 forward output, suitable for motor accepting PWM speed regulation (speed is proportional to duty cycle).
- 10 Motor feedback signal input.
Note: Output signal changes of interfaces 5 to 9 are adjusted by the potentiometer. FG/FG*3 should be based on actual motor feedback times to determine whether to add a jumper cap. No jumper cap is a single times FG, increased jumper cap is 3 times FG*3. The same applies for CW/CCW.
3 Governor Parameter Settings
- Frequency Setting: Press and hold touch switch 1 before power-on, then power the board. Release when the screen displays "FEQ:20K". Touch switch 1 to reduce, switch 2 to add. Factory default is 20KHz.
- Number of Poles: Press and hold both switch 1 and 2 before power-on, then power the board. Release when the screen shows "number of poles: 1 polarity". Touch switch 1 to reduce, switch 2 to add. Factory default is 1 pole.
- Feedback Setting: The FG/FG*3 pin sets the feedback multiple. Adding the jumper cap sets it to 3 times FG; removing it sets it to single times FG.
- Direction Setting: The CW/CCW pin determines the motor's initial state when the direction line is suspended. CCW requires a jumper cap; CW does not.
- Main Interface: The current screen mainly displays input voltage, speed, frequency, and duty cycle. For correct speed display, the FG/FG*3 feedback and pole number must be configured.
4 Governor Precautions
Warning: 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 fail to work and will burn out.
- The governor must match the motor using the specified control interface.
- Do not apply a voltage exceeding 5V to the control ports (interfaces 5 to 9).
? Frequently Asked Questions (FAQ)
Q1: What is the operating voltage and maximum current limit for this governor?
The voltage range is DC 5V-28V. The rated current is a maximum of 2A. For motors requiring higher current, you must connect the motor power line directly to the power supply instead of through the governor.
Q2: How do I change the PWM frequency on the governor?
Before powering on the board, press and hold touch switch 1. Turn on the power and release the switch when "FEQ:20K" appears on the screen. Use switch 1 to decrease the value and switch 2 to increase it to your desired frequency.
Q3: What happens if the power supply polarity is reversed?
The positive and negative inputs must be connected correctly. Reversing the polarity will cause the governor to fail to operate and will burn the internal components.
Q4: How do I set the correct motor pole number for proper speed display?
Hold down both touch switch 1 and touch switch 2 before powering on. Connect power, release the switches when the pole settings screen appears, and use switch 1 (to reduce) or switch 2 (to increase) to match your motor's pole count.
Q5: What is the purpose of the FG/FG*3 jumper cap?
The jumper cap configures the motor's feedback signal multiplier. Without the jumper cap, it detects a single times FG feedback. With the jumper cap attached, it changes the feedback multiplier to 3 times FG*3.
Q6: Can I connect external signals higher than 5V to the control ports?
No, the five control ports (interfaces 5 to 9) must not access voltages exceeding 5V. Exceeding this limit can damage the governor interface circuitry.
