Grove optical fork sensor Panasonic PM-T65-P T-type, 5–24 V DC, light-/dark-switching

The Panasonic PM-T65-P T-type grove optical fork sensor is a compact fork-style photoelectric sensor designed for object detection and position sensing in automation environments. It operates from 5–24 V DC and offers selectable light-switching (bright ON) and dark-switching output modes, enabling integration into a range of detection tasks where a slim, fork-shaped sensor is required. The fork design provides consistent alignment and repeatable detection of edges, labels, small parts or media passing through the gap.

Advantages

This fork optical sensor combines a narrow profile with adjustable switching behaviour, allowing the same device to be used for either light-on or dark-on logic depending on control requirements. Its wide supply voltage range simplifies installation in systems using 5 V to 24 V DC. The T-type fork shape ensures stable object guidance through the sensing aperture and reduces the need for external alignment fixtures.

Suitable for

• Edge detection on paper, cardboard or film in packaging lines
• Presence sensing of small components on conveyors or feeders
• Position detection in assembly machines where parts pass through a narrow gap
• Label or mark detection on web-fed materials

When it may not be suitable

The PM-T65-P is optimized for small to medium-sized objects passing through its fork aperture. It may not be suitable for long-range detection tasks or for sensing very large objects that cannot fit within the fork. Applications requiring high immunity to ambient sunlight or heavy dust accumulation may need alternative sensor types with additional protection or higher power optics.

Key specifications

• Operating voltage: 5–24 V DC
• Fork-style optical sensor (T-type)
• Selectable switching mode: light-switching (bright ON) and dark-switching
• Designed for through-beam/fork detection of small parts and media

How to use

Install the sensor so the target reliably passes through the fork opening perpendicular to the emitter and receiver. Select the desired switching mode (light or dark switching) according to the logic required by the control system and wire the supply and output following the machine’s wiring scheme. Adjust mounting depth and lateral position to ensure repeatable detection; test with actual production parts to verify switching thresholds and timing. Observe the specified supply voltage range to avoid damage.

What to consider before purchase

• Ensure the object size and path fit the fork aperture
• Confirm the required switching logic (light-on or dark-on) is selectable
• Verify system supply voltage falls within 5–24 V DC
• Assess environmental factors such as ambient light, dust, and vibration

Recommendations

For reliable performance, mount the sensor on a stable bracket with minimal vibration, keep the sensing aperture clean from dust and residue, and validate switching behavior under actual operating conditions. When integrating into control systems, use proper wiring, filtering, and mechanical guides to ensure consistent object passage through the fork.