· DC motor governor input is DC, not directly connected to AC (for example: household 220V AC), otherwise it will burn out! Do not reverse the positive and negative terminals of the DC power supply, otherwise the governor may be damaged.
· The motor can be positive or negative. When the running direction is inconsistent with the expectation, the direction can be changed by adjusting the line sequence.
· Adjusting the potentiometer knob can change the governor output duty cycle and the motor speed changes.