Motor Control Wiring Diagram Pdf

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Motor control wiring diagram pdf. Wiring diagrams sometimes called main or construction diagrams show the actual connection points for the wires to the components and terminals of the controller. Already we discussed about the basics of permissive and interlock circuits in previous post also discussed about the basic motor control logic using forward reverse control. This entire assembly consisting of contactor overload block control power transformer power fuses or alternatively a circuit breaker and associated components is informally referred to as a bucket. Inst maint wiring qxd 5 03 2008 10 02 am page 6.

On abb contactor wiring diagram. Wiring diagrams show the connections to the controller. Use transformer if you need to. Unit 1 basic principles of motor controls unit 1 introduction this unit discusses the basic concepts of motor control including motor control language and the types of wiring diagrams used.

Motor control circuits motor control circuits are an effective way to reduce cost by using smaller wire and reduced amperage. The interlock contacts installed in the previous section s motor control circuit work fine as discussed in previous article but the motor will run only as long as each pushbutton switch is held down. Motor control wiring diagram pdf wiring diagram is a simplified usual pictorial representation of an electrical circuit it shows the components of the circuit as simplified shapes and the facility and signal associates with the devices. Three phase wiring diagrams always use wiring diagram supplied on motor nameplate.

Show the control circuits only power circuits are omitted for clarity since they can be traced readily on the wiring diagrams heavy lines. Motor control circuit wiring a simple three phase 480 volt ac motor control circuit is shown here both in pictorial and schematic form. Wiring capacitors resistors semiconductors table 1 standard elementary diagram symbols. Motor 3ct to 120 v separate control ot is a switch that opens when an overtemperature condition exists type mfo.

Always use wiring diagram supplied on motor nameplate. 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. A wiring diagram gives the necessary information for actually wiring up a group of control devices or for physically tracing wires when trouble shooting is necessary. Refer to the motor manufacturer s data on the motor for wiring diagrams on standard frame ex e ex d etc.

These diagrams are current at the time of publication check the wiring diagram supplied with the motor.