Photoelectric Sensor Panasonic PM-K45-P-C3 K-type fork light barrier, 5–24 V DC, light-on/dark-on

Panasonic PM-K45-P-C3 is a K-type fork photoelectric sensor designed for precise object detection in automation and machine safety environments. The compact fork housing provides a clear optical path for reliable edge detection and small-part sensing. The sensor supports an input voltage range of 5–24 V DC and offers selectable light-on and dark-on switching modes to match different application logic requirements.

Advantages

The fork-shaped optical design allows accurate detection of thin or irregular objects without contact, reducing wear and mechanical complexity. Broad supply voltage compatibility simplifies integration into existing control systems. The ability to choose between light-on and dark-on switching increases flexibility for different conveyor, pick-and-place, and positioning setups. The compact construction facilitates installation in confined spaces and close to moving parts.

Suitable for

• Edge detection on conveyor belts and web-guiding systems
• Small-part detection in pick-and-place and assembly machines
• Positioning and presence sensing in automated equipment
• Non-contact detection in packaging and labeling lines

Key specifications

• Operating voltage: 5–24 V DC
• Switching modes: selectable light-on (normally open) and dark-on (normally closed)
• Sensing type: K-type fork photoelectric (fork light barrier)
• Mounting: compact fork-style housing suitable for through-beam sensing of small objects
• Output: solid-state switching compatible with common PLC and control inputs

How to use

Install the fork sensor so the object to be detected passes through the fork gap perpendicular to the optical path. Connect the power supply within the 5–24 V DC range and wire the output to the control input according to your system’s logic. Select the required switching mode (light-on or dark-on) to match the intended signal behavior. Adjust mechanical alignment and secure the sensor to prevent vibration or movement that could affect detection repeatability.

Recommendations

For consistent detection, ensure the gap is free of debris and that reflective surfaces are positioned to avoid false triggers. Use appropriate cable shielding and grounding to minimize electrical interference. When detecting very thin or transparent materials, test both switching modes and adjust the sensor alignment to optimize reliability.