Understanding the Allen Bradley 700 Relay Wiring Diagram is crucial for anyone working with industrial control systems. These diagrams act as the blueprint for correctly connecting these essential components, ensuring safety and functionality. This article will demystify the Allen Bradley 700 Relay Wiring Diagram, making it accessible to a broader audience.
Decoding the Allen Bradley 700 Relay Wiring Diagram
The Allen Bradley 700 Relay Wiring Diagram is a visual representation that shows how to connect an Allen Bradley 700 series control relay into an electrical circuit. Control relays are electromechanical switches used to control higher-power circuits using a lower-power signal. They are fundamental building blocks in automation, allowing a small control signal to switch on or off larger loads like motors, lights, or heaters. The wiring diagram details the terminals on the relay and how to connect them to power sources, control inputs, and the loads they are intended to operate. The correct interpretation and application of the Allen Bradley 700 Relay Wiring Diagram are paramount for safe and efficient operation.
There are various types of 700 series relays, each with its own specific wiring requirements. Common types include general-purpose relays, latching relays, and time-delay relays. Each type will have a unique diagram that outlines its contact configurations and coil connections. For instance, a basic general-purpose relay might have a coil to energize it and several contacts that open or close when the coil is energized. The diagram will specify which terminals are for the coil and which are for the normally open (NO) and normally closed (NC) contacts. Users will often encounter these symbols within the diagram:
- Coil terminals
- Common (C) terminals
- Normally Open (NO) terminals
- Normally Closed (NC) terminals
Learning to read an Allen Bradley 700 Relay Wiring Diagram involves understanding these symbols and their relationship to the physical terminals on the relay. For example, a simple circuit might involve using a push button to energize the relay coil. When the coil is energized, its NO contacts close, allowing power to flow to a motor. The diagram will clearly show how the push button, power source, relay coil, and motor are connected to achieve this. Here is a simplified example of contact types and their behavior:
| Contact Type | State when Coil is De-energized | State when Coil is Energized |
|---|---|---|
| Normally Open (NO) | Open | Closed |
| Normally Closed (NC) | Closed | Open |
Beyond basic functions, more complex applications might involve multiple relays and interlocks, where the diagram becomes essential for sequencing operations. Understanding the Allen Bradley 700 Relay Wiring Diagram also ensures that you are adhering to electrical safety standards and preventing damage to equipment or injury to personnel.
To gain a thorough understanding of how to implement these connections, it is best to consult the official documentation provided by the manufacturer. The comprehensive details within these documents are specifically tailored to each relay model.