Control Circuit Schematic. Two wire control circuits are so named because only two wires are required to control the operation of the circuit. They do not indicate the physical relationships of the various components in the controller.
Figure 2 shows a typical line or schematic diagram. Interpret this ac motor control circuit diagram explaining the meaning of each symbol. You must have access to a double pole relay with either double throw or both normally open contact sets.
Based on your observations of these two diagrams explain how electromechanical relays are represented differently between ladder and schematic diagrams.
A schematic diagram of the circuit in figure 18 2 is shown in figure 18 3. A circuit which enables a user to linearly control the speed of a connected motor by rotating an attached potentiometer is called a motor speed controller circuit. Control circuits schematic diagrams wiring diagrams and reading schematic diagrams 1. Two wire circuits may incorporate several different external sensing devices as shown in figure 18 4.
