The selection of the proper cable or line for transmitting signals on your 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, the user determines which measuring principles are employed for level measurement, which power supply should be provided to the machine 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 an interesting 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 merely seen as a component which supposedly guarantees a trusted connection under all circumstances.
However, Helplessness and connectors pose one of the frequent sources of error. This is exactly where unforeseen potential for 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 due to faulty installation, handling and especially due to the choice of an unsuited cable for the precise application. Principally, there is absolutely no patent fix for determining which cable and which plug connector is most beneficial suitable for your 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 and high longitudinal and transverse water tightness are. In Impenetrable , plug connectors are barely ever applied as a result of insufficient permanent leak tightness. For machine tools which are create in factory buildings, the easiest cable materials with a simple M12 connector are used. In cases like this, however, the use of a suitable cable that permanently withstands ambient conditions such as for example temperature fluctuations and that features 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. Therefore it is a fallacy that cables will be the same and that any given cable with the sufficient amount of wires is suitable for an application.
In one of my previous articles, I drew up a short overview of probably the most relevant criteria for choosing cables and connectors. Invest some time in specifying a suitable cable for the 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.