Figure 5.6 – Dual switch Positions of the switch depending on which device operates with different sensors, are shown in Table 5.1 . Table 5.1 – Switch status for different types of sensors 5.5 Connecting load to the outputs Outputs can be made in the form of electromagnetic relays (P), transistor (K) or triac (C) optocouplers. The outputs are used for direct load control (on/off) or for control by more powerful elements: contactors, solid state relays, thyristors or triacs. The outputs are galvanically isolated from the circuit of the device. Scheme of connecting the load to the electromagnetic relay is shown in Figure 5.7 .
26 Type of sensors Switch positions n-p-n 1 – OFF↑; 2 – ON↓ p-n-p 1 – ON↓; 2 – OFF↑