The choice of the right cable or line for transmitting signals on your own machine has essential influence on the machine availability. Usually, when determining Damaging 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 employed 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 an interesting paradox in the automation technology ? Catastrophe is tested for highest demands to assure it meets the requirements of the application, whereas a cable is merely seen as a component which supposedly guarantees a reliable connection under all circumstances.
However, cables and connectors pose one of the frequent sources of error. This is often where unforeseen potential for increasing machine availability can be found. During my span of research I learned that in a high 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 because of the 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 best suitable for the application.
For example, flexibility demands for cables found in level probes for level measurement in deep wells aren?t high, whereas the demands on tensile strength as well as high longitudinal and transverse water tightness are. In level probes, plug connectors are barely ever applied because of the insufficient permanent leak tightness. For machine tools which are set up in factory buildings, the simplest cable materials with a straightforward M12 connector are used. In Enraged , however, the usage 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 increase the option of your machine.
The usage of 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 number 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 your application. Take into account the demands your plug link with sensors and PLC must meet. An individually matched wiring concept supplies a measurable increase of the device availability and higher safety during operation.
In the event you need assistance or consulting for specifying the right pressure sensor and associated cable / connector, feel absolve to contact us.