Pro-Range CLJ-A30-15ANA NPN M30 Inductive Proximity Sensor - 15mm Detection

This sensor features an NPN (sinking) Normally Open (NO) output. In its normal state, the output signal wire is floating (high impedance). When a metal target is detected within the 15mm range, the internal transistor switches, connecting the signal output to the negative (0V) line, providing a ground signal to the connected PLC input or controller.

The CLJ-A30-15ANA can detect both ferrous (iron, steel) and non-ferrous (aluminum, copper, brass) metals. The actual sensing distance may vary slightly depending on the target material's conductivity and permeability; ferrous metals typically provide the maximum rated 15mm detection distance, while non-ferrous metals may have a reduced effective range.

Connect the brown wire to the positive DC supply (10-30V), the blue wire to the negative/common (0V), and the black wire to your PLC's digital input. The PLC input must be configured for a sinking (NPN) signal. For a 5V/3.3V microcontroller, you will need an external pull-up resistor (e.g., 10kΩ) between the sensor's black signal wire and the microcontroller's positive logic voltage to read the switching state correctly.

Install the sensor by threading it into a pre-tapped M30 x 1.5mm mounting hole. Use the provided lock nut to secure the sensor at the desired depth, ensuring the sensing face is flush and unobstructed. Maintain the recommended lateral and axial clearance distances from other metal surfaces to prevent false triggering and ensure consistent detection performance.