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Industrial Control Basics Electric Motor Control
Industrial motor control wiring diagram. Refer to the motor manufacturers data on the motor for wiring diagrams on standard frame ex e ex d etc. Wiring diagrams show the connections to the controller. Wiring diagrams sometimes called main or construction diagrams show the actual connection points for the wires to the components and terminals of the controller. The manufacturers of motor control equipment for edu cational material and standard motor control circuits. Three phase motor power control wiring diagrams 3 phase motor power control wiring diagrams three phase motor connection schematic power and control. It is a 480 volt delta three phase system.
Figure 7 shows the system used for large industrial plants where most of the load consists of motors. Inst maint wiringqxd 5032008 1002 am page 6. Transformers are used to get 120 volt single phase circuits. Motor control wiring diagram pdf wiring diagram is a simplified usual pictorial representation of an electrical circuitit shows the components of the circuit as simplified shapes and the facility and signal associates with the devices. Unit 1conclusion this unit explained the basic concepts of motor con trols concentrating on how specialized electrical sym bols words and line diagrams are used to convey information about motor control circuits. Industrial timing relays95 96 class 905095 96 timers97 class 905097 transformer disconnects98.
Wiring diagram book a1 15 b1 b2 16 18 b3 a2 b1 b3 15 supply voltage 16 18 l m h 2 levels b2 l1 f u 1 460 v f u 2. Figure 1 a motor controller schematic. Industrial motor control 7e is an integral part of any electrician training. The contacts m will be controlled by the coil mthe output of the motor starter goes to a three phase ac motor. These diagrams show the actual location of parts color of wires and how they are connected. This type of diagram is like taking a photograph of the parts and wires all connected up.
Figure 1 is a typical example of one of these diagrams taken from a condensing unit of a well known manufacturer of residential air conditioners. Motor 3ct to 120 v separate control ot is a switch that opens when an overtemperature condition exists type mfo. Figure 6 is a diagram for a 480276 volt three phase four wire system. Basic wiring for motor control technical data. The lower voltage is then used to supply power to the left and right rails of the ladder below. This system serves hotels shopping centers etc.
These diagrams are current at the time of publication check the wiring diagram supplied with the motor. Power is supplied by connecting a step down transformer to the control electronics by connecting to phases l2 and l3. Comprehensive and up to date this book provides crucial information on basic relay control systems programmable logic controllers and solid state devices commonly found in an industrial setting.
Gallery of Industrial Motor Control Wiring Diagram
