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BLDC DC 5-36v Brushless Sensorless Motor Control Board Driver
Product Description
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 instead of through the governor)
PWM Output Frequency
0 - 100KHz
Analog Voltage Output
0 - 5V
Temperature Limits
Working Temp: -10°C to 70°C
Storage Temp: -30°C to 125°C
Driver Board Dimensions
Length 60mm x Width 40mm
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
Motor feedback signal input.
Adjustment Note (Interfaces 7 to 9): The output signal changes of these three interfaces are adjusted by the potentiometer.
Jumper Cap Settings: FG/FG*3 configuration should be based on the actual motor feedback times. Without a jumper cap, it defaults to a single times FG. With a jumper cap added, it functions as 3 times FG*3. The same rule applies to the CW/CCW jumper cap.
Jumper Cap Settings: FG/FG*3 configuration should be based on the actual motor feedback times. Without a jumper cap, it defaults to a single times FG. With a jumper cap added, it functions as 3 times FG*3. The same rule applies to the CW/CCW jumper cap.
Governor Parameter Settings Guide
Frequency Setting
Before powering on, press and hold touch switch 1. Turn on power to the governor board. Wait until the screen displays "FEQ:20K", then release the button. Touch switch 1 to decrease, and touch switch 2 to increase the frequency. The factory default is set to 20KHz.
Number of Poles Setting
Before powering on, simultaneously hold down touch switch 1 and touch switch 2. Turn on power to the governor board. Release the buttons once the screen displays "number of poles: 1 polarity". Use touch switch 1 to decrease and touch switch 2 to increase the pole number to match the design of your motor. The factory default is 1 pole.
Feedback Setting
Configure feedback multipliers using the FG/FG*3 pin. Set it according to whether the motor requires a single feedback multiple (no jumper cap) or three times feedback multiple (adding the jumper cap).
Direction Setting
The CW/CCW pin configures the initial startup direction when the motor direction control line is suspended. Add a skip cap to set to CCW, or leave without a skip cap to set to CW.
Main Display Interface
The main screen displays four core values: input voltage, speed, frequency, and duty cycle. For correct speed readings, the FG/FG*3 setting and the pole number must match the motor specifications.
Governor Precautions
The positive and negative terminals of the governor's power supply must be connected in strict accordance with the instructions. Do not reverse the connections, as this will prevent the governor from working and will burn the circuit.
This governor is exclusively meant to match motors configured with the control interfaces described above.
The five control ports (referring to wiring interfaces 5 to 9) must not be subjected to voltage exceeding 5V.
Frequently Asked Questions (FAQ)
Q1: What is the allowable input voltage and maximum current capacity of the governor?
A1: The governor supports an input voltage range of DC 5V to 28V. The maximum rated current is 2A. For motors demanding higher current draw, connect the motor power line directly to the external power source instead of routing it through the governor.
Q2: How do I change the default frequency setting?
A2: Before powering up, press and hold touch switch 1. Turn on the power, release the button when the screen displays "FEQ:20K". You can then use touch switch 1 to decrease the value or touch switch 2 to increase it to your target frequency. The default setting is 20KHz.
Q3: How do I set the number of motor poles on the governor?
A3: Hold down both touch switch 1 and 2 simultaneously before applying power. Power on the board and release the switches when "number of poles: 1 polarity" appears. Use touch switch 1 to decrease and touch switch 2 to increase. The factory default setting is 1 pole.
Q4: What is the function of the FG/FG*3 jumper cap?
A4: The FG/FG*3 pin sets the feedback multiplier of the motor. Operating the governor without a jumper cap sets a single times FG feedback, whereas adding a jumper cap configures the board for 3 times FG feedback.
Q5: What happens if I reverse the positive and negative power supply connections?
A5: Reversing the positive and negative power supply lines will damage and burn out the governor's circuitry, making it inoperable. Always double-check wire orientation before powering on.
Q6: What is the maximum voltage permitted on the control ports?
A6: Control ports 5 through 9 (including direction, braking, analog voltage, and PWM outputs) are designed to handle signals up to 5V. Do not apply any voltage higher than 5V to these ports.
