Allen Bradley 1771-OJC can be regarded as a DC output module for PLCs. It is specifically designed to receive instructions sent by the PLC and control the field equipment. It has 16 output points, each capable of outputting 24 volts DC, which is used to drive common small devices in the factory, such as relays, solenoid valves, and indicator lights, etc. In short, when the PLC needs to control the equipment, it is achieved through this module. As a supplier, Hanyite Automation Technology currently has in-stock products and guarantees that they are original products. If you need to buy, please contact us at any time.
The Allen Bradley 1771-OJC was specifically designed for the "dirty, messy and chaotic" environment of factories, and it is extremely durable. The workshop is extremely hot in summer and extremely cold in winter, but it can withstand both. The shell is sturdy and is not afraid of ordinary dust and vibrations. If you install it in an electrical cabinet, as long as the cabinet doesn't get wet, it can work steadily and continuously, completely unlike those delicate electronic gadgets at home.
The way to deal with Allen Bradley 1771-OJC is extremely simple and straightforward. It mainly relies on "observation". It doesn't have any buttons of its own. Its "language" is the row of LED lights on the panel. The PLC makes it work, and the corresponding lights will light up; if there is a short circuit in the external lines, it has a special fault light that will light up, which is like shouting: "Hey, there's a problem outside, go check the wires!" Therefore, the maintenance technician can immediately tell whether it is the PLC that failed to issue a command or there is a problem with the on-site equipment by observing the state of the lights.
This product mainly solves three problems. First, Allen Bradley 1771-OJC integrates all 16 control switches into one box, and the wiring is very neat. It's not messy like before. Second, it detects faults quickly. If the equipment stops working, just check if the lights on the module are on or off. You can immediately narrow down the problem range by half, avoiding the need to search frantically everywhere. Third, it's like a "bodyguard". If the on-site equipment short circuits, it's the fuse inside that gets burned, rather than the more expensive and crucial PLC host. This means you save a lot of money while protecting a significant amount.
| Plug | The golden "pins" at the back of the module are what are inserted into the PLC rack to communicate with and receive power from the PLC. |
| Terminal block | The large "socket" on the front that can be unplugged is where the wires are connected. The equipment you control is all plugged into this area. |
| Small light bulb | The row of LED lights on the panel is its "face". If a certain point is working, the corresponding light will be on. If there is a problem, there will be a dedicated fault light that flashes. |
| Small fuse | Inside there are several small fuses. In case of an external circuit short circuit, it will be burned but won't damage the entire module. Just replace it. |
| Label strip | There is a small slot below, where you can insert paper strips. You can write "No. 1 pump" or "No. 2 valve" on the paper, so you won't connect the wires wrongly. |
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