Panasonic EX-L261 Photoelectric Sensor, Range: 20 mm to 50 mm, NPN Output, Cable Connection

The EX-L261 provides an NPN open-collector (sinking) output. To interface it, connect the sensor's brown wire (typically +V) to your DC power supply positive (10-30V DC), the blue wire to the negative/common, and the black output wire to your PLC or controller's input terminal. The controller input must be connected to the positive supply through a pull-up resistor or internal circuitry, as the NPN transistor sinks current to ground when active.

Yes, the sensing distance is adjustable within the 20 mm to 50 mm range. The sensor typically includes a potentiometer or a teach-in function (consult the specific datasheet) to set the precise detection threshold. This allows you to fine-tune the sensor for different target colors, reflectivities, and environmental conditions to prevent false triggers.

The sensor operates on a standard 10-30V DC supply. It is designed for industrial environments with an operating temperature range of -10°C to +55°C, ensuring reliable performance in most factory settings. Ensure the power supply is stable and protected from voltage spikes common in industrial electrical systems.