Stop Control If you disconnect

Stop Control If you disconnect

Stop Control If you disconnect the switch SA and the STF and SD terminals when the VFD is operating normally, the motor will stop and the VFD will stop producing power. Press the button SB1 to turn off the VFD’s main power supply. The contactor’s KM coil will lose power, the KM main contact will be disconnected, and the VFD’s power supply will be turned off. 2. Forward-Revolution Circuit Constrained by Transfer The diagram that follows depicts the forward-rotation circuit that is controlled by the relay. The circuit’s basic operation is outlined below. 2.1 Beginning Arrangement When you press the button SB2, the contactor km coil will be turned on. The KM main contact and two auxiliary contacts, which are typically open, will be closed, closing the KM main contact as well. The VFD will then be connected to the power supply. The locking KM coil will now be energized as one of the normally open KM auxiliary contacts is closed, and the other normally open KM auxiliary contact will be closed to prepare for the power supply for the median A coil of the relay K. 2.2 Control for Forward Rotation Press the button Sb4, the hand-off KA curl will be turned on, and three contacts of KA that are normally open will be shut, and one typically open contact will be shut, and locking loop KA is power on, one generally open contact will be shut, and button SB1 is shortcircuited, and one more typically open contact is shut, till this second, the STF and SD terminals are associated. The STF terminal receives the forward control signal, and the VFD’s U, V, and W terminals output the forward power supply voltage, causing the motor to move forward. The motor speed will change in accordance with the VFD’s output power when you adjust the potentiometer R connected to the terminal.