1IDEL is an idle speed adjustment potentiometer, forward rotation is rising, reverse rotation is falling. 2RUN is the running adjustment potentiometer, forward rotation is rising, reverse rotation is falling. 3GAIN is a gain-adjusting potentiometer, which has fast spin response and good reverse spin stability 4DROOP is a speed regulation (speed drop) potentiometer (the speed drop can be controlled within the range of 0 to 5% at full load) 5The product has high quality which can make sure the stable performance Item Type: Governor Speed Control BoardPower Supply Voltage: DC 24VConnect pin 1 to the positive pole of the battery and pin 2 to the negative pole of the battery.Pin 3, 4 is connected to the actuator.Pin 5 is connected to the positive pole of the speed signal, and pin 6 is connected to the negative pole of the speed signal.Pins 7, 8 and 9 are connected to external fine-tuning potentiometers, of which pins 7 and 9 are connected to both ends of the potentiometer and pin 8 is connected to the midpoint of the potentiometer.Pins 10 and 7 are connected to both ends of the idle / run switch. When it is connected, it is idle speed, and when it is disconnected, it is running.IDEL is an idle speed adjustment potentiometer, forward rotation is rising, reverse rotation is falling.RUN is the running adjustment potentiometer, forward rotation is rising, reverse rotation is falling.GAIN is a gain-adjusting potentiometer, which has fast spin response and good reverse spin stability. It is recommended to adjust between 7 grid.DROOP is a speed regulation (speed drop) potentiometer (the speed drop can be controlled within the range of 0 to 5% at full load), it is recommended to adjust between 1 grid. 1 xGovernor Speed Control Board