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Motor Speed Controller, DC 5V-36V 3-Phase Brushless Motor Speed Control CW CCW Reversible Switch
Product Description
Electrical Performance Specifications
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°C ~ 70°C
Storage Temperature
-30°C ~ 125°C
Driver Board Size
60mm x 40mm
Governor Wiring & Internal Functions
1
Governor and motor power supply positive input.
2
Governor and motor power supply negative input.
3
Positive output of the motor power supply.
4
Negative output of the motor power supply.
5
High/low level output of positive/negative rotation control (High: 5V, Low: 0V). Controlled by touch switch 2 (F/R); defaults to high level.
6
High/low level output of brake control (High: 5V, Low: 0V). Controlled by touch switch 1 (BRA); defaults to high level upon power-up.
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; speed is inversely proportional to the duty cycle.
9
PWM2 forward output. Suitable for motors accepting PWM speed regulation; speed is proportional to the duty cycle.
10
Motor feedback signal input.
Wiring & Potentiometer Note
- The output signal changes of the three interfaces (7 to 9) are adjusted by the potentiometer.
- FG/FG*3 Setting: Choose based on actual motor feedback requirements. Without a jumper cap, it operates as a single FG signal; adding the jumper cap changes it to 3 times FG (FG*3). The same setting rule applies to CW/CCW.
Parameter Settings
(1) Frequency Setting
Before powering on, press and hold touch switch 1. Turn on the power and release the switch when "FEQ:20K" appears. Press switch 1 to decrease and switch 2 to increase the frequency. Adjustable to the required frequency; factory default is 20KHz.
(2) Motor Pole Number Setting
Before powering on, hold down touch switch 1 and touch switch 2 simultaneously. Turn on the power and release both buttons when "number of poles: 1 polarity" displays. Press touch switch 1 to decrease and touch switch 2 to increase. Adjust to the motor's designed pole number; factory default is 1 pole.
(3) Feedback Setting
The FG/FG*3 pin (indicated in Figure 1) sets the feedback multiplier. Adjust according to whether the motor requires single FG or 3 times FG feedback: add a jumper cap for 3 times FG, or leave it without a jumper cap for single FG.
(4) Direction Setting
The CW/CCW pin (indicated in Figure 1) configures the initial state of motor direction. Set this based on the motor's default rotation (CW or CCW) when the direction line is suspended. Add a jumper cap for CCW, or leave it off for CW.
Main Display Information: The current screen displays four main parameters: input voltage, speed, frequency, and duty cycle. Note that the motor speed will only display properly if the FG/FG*3 feedback and pole count are set correctly.
! Governor Precautions
(1)
The positive and negative power supply lines must be connected correctly according to the instructions and must not be reversed. Incorrect connection will prevent operation and damage/burn the governor.
(2)
The governor is designed specifically to match motors that utilize the control interfaces described above.
(3)
Do not apply a voltage exceeding 5V to the five control ports (from 5 to 9).
Frequently Asked Questions (FAQ)
Q:
What is the input voltage range and maximum current for this governor?
The governor operates within a DC 5V-28V voltage range with a maximum rated current of 2A. If you need to control a motor requiring more current, the motor's power line must connect directly to the power supply rather than passing through the governor.
Q:
How do I set the PWM frequency?
Hold down touch switch 1 before powering on, then turn on the power. Release the button when the screen displays "FEQ:20K". You can then press switch 1 to decrease or switch 2 to increase the frequency. The factory default setting is 20KHz.
Q:
How is the motor pole count configured?
Press and hold both touch switches 1 and 2 before powering on. Turn on the power and release the switches when the screen shows "number of poles: 1 polarity". Use touch switch 1 to decrease and touch switch 2 to increase the pole count. The factory default is 1 pole.
Q:
What is the difference between having the FG/FG*3 jumper cap on or off?
The jumper cap on the FG/FG*3 pin sets the feedback multiplier. If no jumper cap is added, the feedback operates as a single times FG. If the jumper cap is added, it switches to 3 times FG (FG*3). Adjust this based on your motor's feedback requirements.
Q:
What happens if the power supply terminals are reversed?
The positive and negative inputs must be connected strictly according to the wiring instructions. Reversing the polarity will cause the governor to stop functioning and will burn the internal components of the board.
Q:
What is the maximum voltage allowed on the control ports?
The five control ports (numbered 5 to 9) are designed for low-voltage signals. You must ensure that the voltage accessed on these ports does not exceed 5V to prevent damage.
