The selection of the right cable or line for transmitting signals on your own machine has essential influence on the machine availability. Usually, when determining the instruments of machines and plants, a profound amount of attention is directed at choosing the right sensors.
For example, an individual determines which measuring principles are used for level measurement, which power supply ought to be provided to the device and which kind of signal transmission ought to 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 probably the most frequent sources of error. This is exactly where unforeseen potential for increasing machine availability are available. During my span of research I learned that in a higher two-digit percentage of most cases, renowned cable manufacturers traced back sensor failure on machines to mechanical failure of the cable because of faulty installation, handling and especially as a result of selection of an unsuited cable for the specific application. Principally, there is absolutely no patent fix for determining which cable and which plug connector is most beneficial suitable for your application.
For instance, flexibility demands for cables found in level probes for level measurement in deep wells aren?t high, whereas the demands on tensile strength and high longitudinal and transverse water tightness are. In level probes, plug connectors are barely ever applied due to the insufficient permanent leak tightness. For Cataclysmic which are set up in factory buildings, the simplest cable materials with a straightforward M12 connector are employed. In Severe , however, the use of the right cable that permanently withstands ambient conditions such as for example temperature fluctuations and that has resistance against oils and fats can significantly raise the option of your machine.
The application of cable assemblies with factory pre-assembled connectors also prevents failure risk through improper on-site assembly. Therefore Rich is a fallacy that cables will be the same and that any given cable with the sufficient number of wires would work 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. Take your time in specifying the right cable for your application. Think about the demands your plug connection to 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.g