LLocal rotary knob circuit for electric actuating mechanism

The utility model provides a local rotary knob circuit for an electric actuating mechanism. The circuit comprises a chassis, a master control module, a power control unit, and a rotary knob module. The external of the chassis is provided with a local control rotary knob and a local operation rotary knob. The local control rotary knob and the local operation rotary knob are provided magnets. The master control module comprises a micro-control unit, a power control unit controlled by the micro-control unit, and a first plugging unit with five ports. The power control unit is provided with a first end, a second end, and a third end. The rotary knob module is installed in the chassis, and is connected with the master control module through an external wire. The rotary knob module comprises a second plugging unit with a first port, a second port, a third port, a fourth port, and a fifth port. The first port, the second port, the third port, and the fourth port are respectively connected with a reed switch. The reed switch is used to induce the positions of the magnets. The circuit improves detection methods and determining functions of the electric actuating mechanism, reduces installation and material costs, reduces probability of fault point occurrence, and improves reliability of the control circuit.