Hanyoung Nux UP30RLD-15NA Non-Shielded 15mm Inductive Proximity Sensor

A non-shielded sensor, like the UP30RLD-15NA, has an exposed magnetic field that extends laterally around the sensing face. This allows it to detect metal objects approaching from the side, but it cannot be flush-mounted in metal. Shielded sensors have a contained field for flush mounting but a narrower lateral detection zone.

The maximum cable length depends on the wire gauge and electrical noise in the environment. For reliable operation with standard 18-22 AWG cable, distances up to 100 meters are typically feasible. Always refer to the manufacturer's datasheet for specific guidelines regarding voltage drop and interference.

Yes, inductive sensors detect all conductive metals, but the effective sensing distance varies. For non-ferrous metals like aluminum or copper, the sensing distance is reduced compared to steel. The 15mm rating is typically for mild steel (Fe360); a reduction factor (e.g., 0.4 for aluminum) must be applied for accurate positioning.

Identify if your sensor is NPN (sinking) or PNP (sourcing) output from its markings or datasheet. For an NPN sensor, connect the brown wire (+V), blue wire (0V/GND), and the black wire (signal output) to the PLC's digital input. The PLC input type (sinking or sourcing) must match the sensor's output logic. Always ensure power polarity is correct.