Photoelectric Fork Sensor Panasonic PM-R25, R-type, 5–24 V DC, light-on/dark-on

Panasonic PM-R25 is a compact R-type photoelectric fork sensor engineered for precise object detection in automation lines. Powered by 5–24 V DC, the sensor offers selectable light-on and dark-on switching modes, allowing flexible integration into systems that require either signal when the beam is interrupted or when it is received. The fork-style housing ensures repeatable detection of small parts, labels, edges and thin materials in packaging, assembly and material-handling processes.

Advantages

The fork form factor provides stable, repeatable sensing of small targets with minimal misalignment sensitivity. Wide supply voltage compatibility (5–24 V DC) permits easy integration with common control equipment. Selectable light-on/dark-on operation increases application flexibility, enabling the sensor to be used both for presence detection and for break-beam style edge or label sensing. The compact construction simplifies mounting in tight spaces on conveyors, pick-and-place stations and labeling machines.

Suitable for

• Detecting small components on assembly lines
• Label edge and gap detection on packaging machines
• Position sensing of thin materials and foils
• Part presence verification in pick-and-place systems

Key specifications

• Sensor type: Photoelectric fork sensor (R-type)
• Supply voltage: 5–24 V DC
• Switching modes: Selectable light-on and dark-on
• Output style: Complementary switching suitable for control inputs
• Mounting: Fork-style housing for through-beam detection of narrow targets

How to use

Mount the sensor so the target passes through the fork gap where its presence will interrupt or allow the light beam, depending on the selected mode. Connect the supply within the 5–24 V DC range and wire the output to the control system input following polarity and grounding conventions. Choose light-on mode when an output is required while the beam is received, or dark-on mode when an output is required when the beam is interrupted. Adjust mechanical alignment to center the target within the sensing gap for consistent detection.

Usage recommendations

Install the sensor on a stable bracket to avoid vibration-induced false triggers, keep the beam path free of dust and debris, and verify switching mode and wiring before final commissioning. For thin or translucent targets, test both switching modes and fine-adjust alignment to ensure reliable detection.