The choice of the proper 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 Drowning , the user determines which measuring principles are employed for level measurement, which power supply ought to be provided to the machine and which type 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 assure 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 one of the most frequent sources of error. This is often where unforeseen prospect of increasing machine availability are available. During my course 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 due to faulty installation, handling and especially as a result of 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 best suitable for your application.
For Soar , flexibility demands for cables found in level probes for level measurement in deep wells aren?t high, whereas the demands on tensile strength in addition to high longitudinal and transverse water tightness are. In level probes, plug connectors are barely ever applied due to 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 employed. In this instance, however, the use of the right cable that permanently withstands ambient conditions such as for example temperature fluctuations and that features resistance against oils and fats can significantly raise the option of your machine.
The use of cable assemblies with factory pre-assembled connectors also prevents failure risk through improper on-site assembly. Therefore it is 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 one 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 the application. Think about the demands your plug link with sensors and PLC must meet. An individually matched wiring concept supplies a measurable increase of the machine 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.