Developing a Wiring Digram (Circuit #2)

Objectives

After studying this unit, the student will be able to:

• Develop a wiring diagram using this schematic

• Connect this circuit

The circuit shown in figure 34-1 is the same as the schematic shown in figure 31-1, except the schematic in 34-1 has been labeled with numbers. Figure 34-2 shows the components of the wiring

diagram. The numbers used to label the compo­ nents in the wiring diagram correspond to the numbers in the schematic. For instance, the sche­ matic shows the numbers 1 and 8 beside normally

open contact TRI. The wiring diagram also shows the numbers 1 and 8 beside normally open contact TRI. The numbers used with each component shown on the schematic have been placed beside the proper component shown in the wiring dia­gram.

Figure 34-3 shows the wiring diagram with connected wires. Notice that the wiring diagram shows motor connections while the schematic does not. Although it is a common practice to omit mo­ tor connections in control schematics, wiring dia­ grams do show the motor connections.

FIGURE 34-1 Schematic  with components  numbered

FIGURE 34•2 Components  have been numbered to match the schematicFIGURE 34-3 Wire connections are made by connecting like numbers

Review Question

1. Referring to circuit 34-1, would it be possible to change the components that have been numbered with an 8 to a number 9, and the components that have been numbered with a 9 to a number 8 without affecting the operation of the circuit?

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