1. Counting separated loads crossing a reflector path
A conveyor can carry separated opaque loads through a red-light path between the sensor and a suitable reflector. The sensitivity potentiometer and local PNP/NPN and light/dark selectors establish the signal expected by the external counter. Setup checks load coverage, reflector range, spacing and speed against the 1,000 Hz and resistive-load response specifications. Time delays are disabled for direct passage counting.
Problem Solved
A beam-interruption event gives external counting logic a load-passage reference across the conveyor, with selectable electrical behavior matching the installed control input and counting sequence.
Load counter
Reflector path
Selectable output
2. Qualifying a sustained obstruction before changing a machine sequence
A machine can arrange the sensor and reflector across a material path and select the appropriate light/dark condition for sustained obstruction. The 0.5–10 s on-delay qualifies the selected condition before the switching output changes. External sequencing logic receives that delayed signal, with setup checking actual interruption duration and deliberately including the configured delay in process timing.
Problem Solved
A configurable delay helps external sequencing logic distinguish a sustained selected optical condition from a brief interruption, reducing unwanted process changes caused by shorter events.
On-delay qualification
Sustained condition
Process sequence
3. Holding a transfer signal through short optical gaps
A transfer station can use the selected optical condition as a process signal and apply the 0.5–10 s off-delay to hold that output through shorter gaps. Separate t2 and time-selector controls set the intended retention behavior. Commissioning verifies the chosen light/dark mode, gap duration and full sequence timing so that retained output does not obscure a condition that the machine must detect immediately.
Problem Solved
A configured off-delay helps external transfer logic maintain its selected process signal across brief optical gaps, avoiding repeated sequence changes when the intended condition remains established.
Off-delay hold
Transfer signal
Gap filtering
