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 quantity of attention is given to deciding on the best sensors.
For example, the user determines which measuring principles are used for level measurement, which power supply ought to 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 assure it meets certain 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 just about the most frequent resources of error. This is often where unforeseen prospect of increasing machine availability can be found. During my course of research I learned that in a high 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 precise application. Principally, there is no patent remedy for determining which cable and which plug connector is most beneficial suitable for your application.
For instance, flexibility demands for cables used in level probes for level measurement in deep wells aren?t high, whereas the demands on tensile strength together 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 easiest cable materials with a straightforward M12 connector are used. In cases like this, however, the use of a suitable cable that permanently withstands ambient conditions such as temperature fluctuations and that features resistance against oils and fats can significantly increase the availability 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 amount of wires would work for an application.
In another of my previous articles, I drew up a brief overview of probably the most relevant criteria for choosing cables and connectors. Take your time in specifying the right cable for your application. Think about ชนิดของpressuregauge to sensors and PLC must meet. An individually matched wiring concept offers 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.