Solid state relay controlled forward and reverse starting circuit

The solid state relay (SSR) is used as the electronic switch to control the
forward and reverse starting circuit of the motor , as shown in Figure 3-30. When the switch S is placed
in the "I" position, the motor rotates forward; when S is placed in the "II"
position, the motor rotates reversely. In the actual control circuit,
an inversion delay circuit needs to be set up to ensure the safety of the SSR. The delay is generally about 60~70ms.