The choice of the right cable or line for transmitting signals on your machine has essential influence on the device availability. Usually, when determining the instruments of machines and plants, a profound level of attention is directed at choosing the right sensors.
For example, the user determines which measuring principles are used for level measurement, which power ought to be provided to the device and which type of signal transmission should be used. Usually, the cables shown in the wiring schemes as simple connection lines between sensor and SPS are problematic. This poses a fascinating paradox in the automation technology ? a sensor is tested for highest demands to make sure it meets the requirements of the application form, whereas a cable is only regarded as a component which supposedly guarantees a reliable connection under all circumstances.
However, cables and connectors pose the most frequent resources of error. This is exactly where unforeseen prospect of increasing machine availability are available. During my course of research I learned that in a higher two-digit percentage of all cases, renowned cable manufacturers traced back sensor failure on machines to mechanical failure of the cable because of faulty installation, handling and especially due to the selection of an unsuited cable for the specific application. Principally, there is absolutely no patent remedy for determining which cable and which plug connector is best suitable for your application.
For Incredible , flexibility demands for cables used in level probes for level measurement in deep wells aren?t high, whereas the demands on tensile strength along with high longitudinal and transverse water tightness are. In level probes, plug connectors are barely ever applied because of the lack of permanent leak tightness. For machine tools which are setup in factory buildings, the simplest cable materials with a straightforward M12 connector are employed. In this case, however, the usage of the right cable that permanently withstands ambient conditions such as for example temperature fluctuations and that features resistance against oils and fats can significantly raise the availability of your machine.
Using cable assemblies with factory pre-assembled connectors also prevents failure risk through improper on-site assembly. It is therefore a fallacy that all cables will be the same and that any given cable with the sufficient amount of wires is suitable for an application.
In another of my previous articles, I drew up a brief overview of the most relevant criteria for choosing cables and connectors. Invest some time in specifying the right cable for the application. Think about the demands your plug link with sensors and PLC must meet. An individually matched wiring concept offers a measurable increase of the device availability and higher safety during operation.
Should you need assistance or consulting for specifying a suitable pressure sensor and associated cable / connector, feel absolve to contact us.