Wiring of FX-101 Digital Fiber Optic Sensor

The FX101 Digital Fiber Optic Sensor is wired by connecting the fiber optic cable to the amplifier input, supplying 10–30V DC, and wiring the NPN output to the PLC input with a common ground.

Fiber Optic Cable Connection

1. Insert the fiber cables into the amplifier: the beam-emitting fiber goes into the "P" inlet and the beam-receiving fiber into the "D" inlet. Ensure the fibers are fully seated until they stop, then lock the lever to secure them. Incorrect insertion can reduce sensing performance .
2. Avoid bending the fiber excessively, as this can degrade signal quality .
3. Check fiber compatibility: standard reflective or diffuse sensors are generally supported, but verify wavelength specifications for optimal performance .

Electrical Wiring

1. Power Supply: Connect a DC voltage of 10–30V to the amplifier's power terminals. Ensure polarity is correct to avoid damage .
2. NPN Output Wiring: Connect the NPN output terminal of the FX101 to the input channel of your PLC or controller. The current flows from the load to ground when active .
3. Common Ground: Connect the amplifier's 0V terminal to the controller's 0V to complete the circuit and ensure proper signal reference .
4. Optional External Input: Some models allow teaching or threshold adjustment via external input; refer to the amplifier manual for configuration .

Mounting and Safety

• Mount the amplifier on a DIN rail or with M3 screws, keeping torque below 0.5 N·m .
• Do not use the sensor for personnel protection; it is intended for object detection and industrial automation .
• Ensure the environment is free from excessive EMI; fiber optic isolation helps prevent signal interference .

Calibration and Operation

1. Power up the amplifier and switch to RUN mode.
2. Adjust threshold values using the UP/DOWN keys on the digital display. The display shows both threshold and incident light intensity for easy monitoring .
3. Test the sensor by placing objects in the sensing area and verifying the output signal on the PLC. By following these steps, the FX101 can be reliably integrated into industrial control systems, providing stable, noise-immune digital signals over long distances without complex wiring .