The right cable increases your machine availability

The selection of the right 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 given to deciding on the best sensors.
For example, an individual determines which measuring principles are used for level measurement, which power ought to be provided to the device and which kind 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 merely regarded as a component which supposedly guarantees a reliable connection under all circumstances.
However, cables and connectors pose just about the most frequent sources of error. This is often where unforeseen prospect of increasing machine availability can be found. During my span 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 as a result of choice 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 instance, flexibility demands for cables used 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 as a result of insufficient permanent leak tightness. For machine tools which are setup in factory buildings, the easiest cable materials with a simple M12 connector are used. In Extremely , however, the usage of a suitable cable that permanently withstands ambient conditions such as for example temperature fluctuations and that has resistance against oils and fats can significantly increase 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 cables will be the same and that any given cable with the sufficient number of wires is suitable for an application.
In one of my previous articles, I drew up a short overview of the most relevant criteria for choosing cables and connectors. Invest some time in specifying a suitable cable for your 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 the right pressure sensor and associated cable / connector, feel free to contact us.

Leave a Comment