Installation steps of PLC installation considerations

To the scene after the system before the installation, need to consider whether meet the requirements of the use of PLC controller environment installation environment, it can refer to the manual of all kinds of products. But no matter what PLC, can be installed in the following places: containing corrosive gas in the place, the place that direct sunlight, temperature fluctuation values change rapidly in a short time, oil, water, chemicals, easily into place, there is a lot of dust, vibration and can cause a shift of installation place. If it must be used in the environment to make suitable for PLC control box, the specification and the necessary protective measures. If you need to use very low temperatures in the wild, you can use the heating function of the control box. How do these protective box or control box, various manufacturers and and qualification system integrators will provide customers with the corresponding supply and design. When using control box, in the position of the control cabinet OpenPLC installation should pay attention to the following items: control the air flow is smooth in the cabinet, Between different devices must maintain proper distance) , transformer, motor controller, inverter, such as whether to keep a proper distance with PLC, power line and signal line of the separation configuration, components of the installed position is conducive to the maintenance of in the future, whether to need to set aside space, for future system expansion. In addition to the above considerations, there are other considerations to pay more attention to. The first of the more important is the separation of electrostatic. Static electricity is invisible killer, but probably because people will not cause danger, so many people are often ignore it. In the north of China, dry place, human body electrostatic are factors of electrostatic damage electronic components. Although you are electrostatic hit, is only a slight limp and numb, but for the PLC and any other electronics is lethal. To avoid the impact of the static electricity in any of the following three ways: in for repair or replacement components, metal touching the ground first, please, to remove the body static electricity; Do not touch, joint on the circuit board or IC pin; Electronic components when not in use, please use a separate electrostatic packaging, place the component in it. Imagine the components in the PLC controller is a tender baby, and the static electricity can cause the baby died, you will more easily in the correct attitude towards the problem. Base installation ( 架) , control box in the decision after all kinds of control components and slot position, should be in accordance with the drawings shown in size, the number of the calibration, will be fixed after drilling screw tightening at the base firmly. Before install the power supply module, must pay attention to the power cord at the same time the presence of and metal casing of the earthing terminal link, without requiring the plug in. Grounding is not good, will lead to a series of problems, electrostatic, surge, outside interference, and so on. Because do not grounding, PLC can often work, therefore, many experienced engineers think grounding is not so important. It's like mountaineering, no wear protection cable, although you normal advance, protect the cable does not have any effect, but once you stumble, without the rope, your life is over. On the PLC of grounding, is equivalent to the PLC system to protect the cable. In the I/O module when installation, must pay attention to the following matters: I/O module is inserted into the slot on the frame before, to make sure the module is designed for their advance module; I/O module in the insert the guide groove on the frame, it is important to insert to the end, to ensure that the contact point is closely; Module fixed screw be sure to lock; After the terminal row inserts, its screws have to tighten up and down. Because of the influence of the scene of the transformer, motor, how many will have vibration, if the screw loose, can lead to a module to loosen from the rack.
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