Ladder Diagram Basics #3C 3 Wire Control - YouTube Click to view on Bing15:57This video will walk you through the physical wiring of a 3-Wire Control circuit for a 3 Phase Ladder Diagram Basics #3C 3 Wire Control How To Wire a House Main Electrical PanelAuthor: Pete VreeViews: 33K Ladder Diagram Basics #3 (2 Wire & 3 Wire Motor Control Click to view on Bing14:56This video walks you through the basic 2 wire and 3 wire control for 3 Phase motor Ladder Diagram Basics #3 (2 Wire & 3 Wire Motor Control Circuit) Pete Ladder Diagram BasicsAuthor: Pete VreeViews: 312K Basic control circuits:Three-Wire Control Circuits Control circuits can be divided into two major types: two-wire control circuits and three-wire control circuits. A two-wire control circuit can be a simple switch that makes or breaks connection to a motor (Figure 18 – 1). A good example of this type of control is the single-phase manual starter shown in Figure 3 Control Wiring - 3 Wire Control - Start Stop Circuit The most common use of 3 wire control is a Start/Stop control. Use the top diagram to help you figure out how to wire it. Hint: The start button is normally open and the stop button is normally closed. Next Steps. Go to the Control and Power Wiring Lesson series to select your next lesson. Control Wiring - 2 Wire Control - ON/OFF Circuit In this video we show you how to wire a 2 wire control circuit to a relay and a light. See image below for an example of 2 wire control being used to pull in a contactor to start a 3 phase motor. When the 24VDC relay energizes, it pulls in the R1 contactor that feeds three phase power to the motor. 1 Basic Principles of PDF filethe diagram in Figure 1–7 is in the style of a connection diagram, while the style showing the start-stop station and coil is similar to a ladder diagram. (3) Pictorial Diagrams (Figure 1–8) Pictorial diagrams are often used in educational mate-rial and as exploded views or cut-away views in instal-lation and maintenance literature. Ladder Logic Basics | EC&M Logic relates to ladder diagrams because input functions in series constitute an AND operation, while input functions in parallel constitute an OR operation. You will encounter two types of ladder diagrams: the 2-wire control circuit and the 3-wire control circuit. The 2-wire control circuit is shown in Fig. 2.