1. Electrical Performance Specifications of Governor
Voltage & Current
Voltage Range: DC5V-28V
Rated Current: MAX 2A
Output Signal
PWM Output Frequency: 0~100KHz
Analog Voltage Output: 0-5V
Physical & Environment
Working Temp: -10°C to 70°C
Storage Temp: -30°C to 125°C
Size: 60mm (L) x 40mm (W)
Note: To control the motor with greater current, the motor power line must be directly connected to the power supply, not through the governor.
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.
Potentiometer Adjustment: The output signal changes of the three interfaces (5 to 9) are adjusted by the potentiometer.
Feedback Jumper Cap Setting: FG/FG*3 should be based on the actual motor feedback times whether to add a jumper cap. No jumper cap indicates single times FG; an added jumper cap indicates 3 times FG*3. The same rules apply for CW/CCW configuration.
3. Governor Parameter Settings
(1) Frequency Setting
Before power-on, press and hold the touch switch 1. Power the governor board and wait until the screen displays "FEQ:20K" to release the button.
Touch Switch 1: Reduce frequency
Touch Switch 2: Increase frequency
Factory Default: 20KHz
(2) Number of Poles Setting
Before power-on, press and hold both 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: Reduce pole number
Touch Switch 2: Increase pole number
Factory Default: 1 pole
(3) Feedback Setting
The FG/FG*3 pin is configured according to the feedback multiplier of the motor. Adding the jumper cap sets it to 3 times FG, while removing the jumper cap configures it to single times FG.
(4) Direction Setting
The CW/CCW pin configures the initial motor direction when the direction control line is suspended. CCW is active with the skip cap added; CW is active without the skip cap.
Display Information: The default main screen displays the input voltage, speed, frequency, and duty cycle. For correct speed display, ensure the FG/FG*3 feedback and pole numbers are configured properly.
4. Governor Precautions
⚠️Correct Power Wiring: 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 function and will burn out.
⚠️Compatibility: The governor is designed to match motors that utilize the control interfaces specified above.
⚠️Voltage Limit: Do not supply more than 5V voltage to the five control ports (from 5 to 9).
Frequently Asked Questions (FAQ)
What is the input voltage range supported by this governor?
The governor supports a DC voltage range between 5V and 28V.
Can I use this governor to control motors that require a current higher than 2A?
Yes, but the motor's power line must bypass the governor and connect directly to the power supply, as the governor's rated board current limit is MAX 2A.
How do I change the default frequency setting?
Hold down switch 1 before powering on the board. Once the screen shows "FEQ:20K", release the button. Use switch 1 to decrease and switch 2 to increase the frequency to your target value.
What happens if I reverse the positive and negative power connections?
Reversing the positive and negative power inputs will cause the governor to malfunction and permanently burn the board circuitry.
What is the maximum voltage permitted for the control signal ports?
The control ports (interfaces 5 through 9) must not exceed a maximum input voltage of 5V.
OmniDrive Motor
