SICK WL11-2P2432P07 – Small Photoelectric Sensor | W11 Series Platform
Engineering Background
SICK AG is a global leader in sensor intelligence for factory and logistics automation, headquartered in Waldkirch, Germany. The W11 series represents SICK’s compact photoelectric platform engineered for space-constrained mounting environments where reliable object detection is non-negotiable. The WL11-2P2432P07 is a diffuse-mode (retroreflective-capable) variant optimized for high-cycle industrial duty cycles.
Product Positioning
The WL11-2P2432P07 targets machine builders, panel integrators, and process engineers who require a miniaturized, DIN-rail or bracket-mountable photoelectric sensor with PNP output compatibility and proven EMC robustness. It is a direct-fit replacement and upgrade path for legacy SICK W11 installations across automotive, packaging, and material handling lines.
Complete Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | WL11-2P2432P07 |
| Manufacturer | SICK AG |
| Series | W11 / WL11 |
| Detection Mode | Diffuse reflection (energetic) |
| Output Type | PNP, push-pull |
| Switching Output | Light-ON / Dark-ON (programmable) |
| Supply Voltage | 10 – 30 V DC |
| Current Consumption | ≤ 35 mA (no load) |
| Switching Frequency | ≤ 1,000 Hz |
| Response Time | ≤ 0.5 ms |
| Light Source | Red LED, 660 nm |
| Sensing Range (typical) | 20 – 200 mm (white 90% reflectance) |
| Housing Material | Thermoplastic (PBT) |
| Protection Rating | IP67 |
| Operating Temperature | -40 °C to +60 °C |
| Connection Type | M8 connector, 4-pin |
| Weight | ~15 g (sensor only) |
| Certifications | CE, UL, cULus |
| SICK Order Number | 1017576 (verify with SICK datasheet) |
Proven Application Environments
- Packaging lines – label presence detection, carton flap verification, fill-level sensing
- Automotive assembly – part-in-place confirmation on conveyor and robotic end-of-arm tooling
- Material handling – pallet detection, tote counting, gap sensing on belt conveyors
- Printing & converting – web break detection, register mark sensing
- Food & beverage – IP67 wash-down compatible; bottle/can presence on filling lines
- Electronics manufacturing – PCB detection, tray indexing on SMT lines
Engineering Advantages
- Compact W11 footprint – fits tight machine frames where standard-body sensors cannot be mounted
- Wide supply voltage range (10–30 V DC) – compatible with 12 V and 24 V DC control architectures without additional regulation
- PNP push-pull output – direct interface to Siemens, Mitsubishi, Omron, and Rockwell PLC digital input modules
- IP67 sealing – withstands coolant splash, dust ingress, and high-pressure wash-down cycles
- Red LED 660 nm – visible alignment beam simplifies commissioning without additional tools
- ≤ 0.5 ms response time – supports high-speed counting and positioning applications up to 1,000 Hz
- Extended temperature range (-40 to +60 °C) – suitable for cold-storage and outdoor-adjacent installations
System Architecture & Signal Flow
The WL11-2P2432P07 operates as a 3-wire PNP device within a standard 24 V DC sourcing input circuit:
- Pin 1 (Brown) → +24 V DC supply
- Pin 3 (Blue) → 0 V / GND
- Pin 4 (Black) → Switching output → PLC DI terminal (sourcing)
- Pin 2 (White) → Light/Dark select or second output (model-dependent)
Output signal is HIGH (≈ supply voltage) when object is detected in Light-ON mode. Connect output through a 10 kΩ pull-down resistor when interfacing with NPN-input modules. Maximum load current: 100 mA; short-circuit protected.
Sourcing & Quality Verification
- Units sourced from authorized SICK distribution channels and verified OEM surplus stock
- Each unit inspected for housing integrity, connector condition, and label legibility prior to dispatch
- Batch traceability maintained; SICK date codes and serial numbers preserved
- Functional test available on request for volume orders (≥ 5 pcs)
- Certificate of conformity and SICK original datasheet provided upon request
Procurement Process
- Step 1 – Confirm quantity and delivery timeline via the order form or contact [email protected]
- Step 2 – Receive proforma invoice with HKD pricing and shipping options (DHL Express / sea freight)
- Step 3 – Payment via T/T bank transfer or approved trade terms
- Step 4 – Dispatch within 2–5 business days; tracking number provided
- Step 5 – Post-delivery technical support available via email or WhatsApp (+0086 19859288691)
Technical FAQ
Q: Can this sensor detect transparent objects?
A: Diffuse-mode sensors have limited performance on transparent targets. For glass or clear film detection, consider SICK’s polarized retroreflective variants (e.g., WL11-2P series with polarization filter).
Q: Is the WL11-2P2432P07 compatible with SICK’s MSC800 safety controller?
A: No — this is a standard (non-safety) sensor. For SIL/PLd applications, specify SICK’s WL series with OSSD outputs.
Q: What is the minimum object size detectable?
A: Minimum detectable object diameter is approximately 3 mm at close range (≤ 50 mm). Performance varies with target reflectance and surface finish.
Q: Can I use this sensor outdoors?
A: IP67 rating covers dust and temporary immersion. For permanent outdoor exposure, add a protective housing to shield against direct UV and precipitation.
Q: What cable/connector is required?
A: M8 4-pin straight or right-angle cable, female connector. SICK part DOL-0804-G02M or equivalent third-party M8 cordset.
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