Proximity Sensor

Although proximity sensors appear insignificant on the BOM, Their operational function, however, affects the performance of the machine when deciding if the machine will stop in advance of or after damaging the next process stage. Proximity sensors are supplied after determining the sensing distance, mounting position and material / type of target object (inductive sensors are utilized for detecting metal objects on conveyor structures and machine beds; capacitive sensors are used for non-metal targets only after considering dust level, moisture, and false trigger risk). This product selection does not depend solely upon the size of the fitting thread.

The length of the cable run, type of connector used, and logic output mode of the sensor is matched to the PLC input requirements for the control panel. The selection of PNP or NPN output is confirmed at the engineering stage to prevent having to rewire at the installation site. In high noise areas, where the use of VFD (variable frequency drive) panels and heavy motor feeders have been run adjacent to one another, proper routing of shielded cables and appropriate earthing methods are required to ensure stable switching. Properly planned mounting brackets will prevent the alignment from shifting during vibration.

In determined speed contexts, the amount of response time is important. We check the switching frequencies for counting, positioning or interlocking using the sensor. Each sensor measures the actual target before shipping to check the range, and test the LED beacon. The proximity sensors installed in US automated systems provide identical detection for each cycle, signal consistency to PLC input modules, and reliable machine sequencing without unwanted interruption in operation thus providing a complete automation solution for our customers.