SICK WLA16P-24162100A00 Retro-Reflective Sensor

Part number 1218660 identifies the WLA16P-24162100A00, a W16 photoelectric sensor that works with a reflector. It needs wiring on one side only and detects anything that breaks the light path between sensor and reflector. The sensing range maximum is 10 m. Output: Push-pull: PNP/NPN, light/dark switching; connection: Male connector M12, 4-pin.

Retro-reflective sensing with the WLA16P-24162100A00

The data sheet describes the optics as autocollimation (coaxial), without a reflector minimum distance. In practice that means the sensor can work close to the reflector, which helps in tight machine envelopes, and the receiver looks along the same axis as the sender. A polarisation filter is fitted: it passes only light that the reflector has rotated, so shiny objects are less likely to be mistaken for the reflector. Only the sensor needs a cable; the reflector is passive, which cuts installation effort on long conveyors and wide openings. A light-switching output turns on while the beam reaches the receiver, a dark-switching output turns on when the beam is blocked. Choose according to how the controller treats a broken wire.

Light source: PinPoint LED, visible red light, light spot Ø 80 mm (5 m). Adjustment: for configuring the sensor parameters and Smart Task functions. The data sheet lists this special application: detecting objects wrapped in film. Response time SIO Logic: 600 µs ; IOL: 750 µs, switching frequency SIO Logic: 800 Hz ; IOL: 650 Hz. IO-Link (✔ , IO-Link V1.1) is available for parameter setting and diagnostics.

Technical specifications

Type code WLA16P-24162100A00 and part number 1218660

Retro-reflective types of one family often differ only in connector, output or range, so SICK numbers each separately. Quote 1218660 together with WLA16P-24162100A00; if the old label is unreadable, send us the application and we will compare the neighbouring variants.

Other active types in the same SICK family, each with its own part number:

• WLA16P-24162130A00 (part no. 1223080)
• WLA16P-24161100A00 (part no. 1220993)
• WLA16P-24161100A00 (part no. 1221053)
• WLA16P-24165100A00 (part no. 1222703)
• WLA16P-34162100A00 (part no. 1218815) – Connection type: Cable with male connector, Connection type Detail: Cable with plug, M12, 4-pin

Mounting, wiring and alignment notes

Plan for 10 V DC … 30 V DC at the terminals, IP66 (EN 60529); IP67 (EN 60529); IP69 (EN 60529) enclosure protection and an operating ambient of –40 °C … +60 °C. The body measures 20 mm x 55.7 mm x 42 mm and weighs Approx. 50 g. No reflector is listed as supplied, so add a suitable reflector to the order and check the operating reserve against the distance you need. Choose a reflector that suits the distance and the dirt level; a larger reflector gives more operating reserve in dusty areas.

Documents and quotation

For WLA16P-24162100A00 the manufacturer’s data sheet (part no. 1218660) is attached as a PDF copy; read it together with your control drawing before you commit to the order. A quotation needs only the part number, the quantity and the delivery destination; the RFQ form takes all three. Related items are listed under Sensors & Transmitters. We suggest a last check of the output type, plug and ratings against your site documents before the order is placed; the data sheet governs.