KEYENCE LR-W500C

Core Technical Performance Parameters

1. Detection Mode: Diffuse reflective full-spectrum RGB sensing
2. Sensing Distance: Adjustable 30 mm – 500 mm
3. Light Source: High-brightness integrated RGB tri-color LED
4. Response Time: 250 μs standard mode; 300 μs anti-flicker mode
5. Power Input: DC 10 V – 30 V, ripple voltage ≤ 10%
6. Current Consumption: Max 120 mA
7. Output Circuit: NPN / PNP switchable, NO/NC configurable
8. Communication Standard: IO-Link V1.1 / COM2 (38.4 kbps)
9. Spot Size: Continuously adjustable via front dial, minimum 1.5 mm focal spot
10. Environmental Resistance:
    • Operating Temp: -20 °C ~ +50 °C (non-freezing)
    • Storage Temp: -40 °C ~ +70 °C
    • Humidity: 35% – 85% RH, no condensation
    • Vibration: 10–55 Hz, 1.5 mm double amplitude, 2 hours X/Y/Z axis
    • Shock: 1000 m/s² impact, 6 times per axis
    • Ambient Light Tolerance: Incandescent ≤10,000 lux, Sunlight ≤20,000 lux

Material Composition

• Main Housing: Nickel-chrome plated zinc die casting (anti-corrosion, anti-scratch)
• Indicator Window Cover: PPSU high-temperature resistant polymer
• Operation Buttons: PES chemical-resistant plastic
• Lens & Display Panel: PMMA with scratch-proof hard coating
• Cable Gland Sleeve: PBT engineering plastic
• Spot Adjustment Dial: Iron base with triiron tetraoxide anti-rust coating
• M12 Connector Ring: PMP high-strength plastic; Connector Socket: PEI
• Total Weight: 110 g

Structural Characteristics

1. Compact rectangular integrated monolithic housing, all circuits fully enclosed
2. Front panel layout: SET teaching button, MODE function switch, NO/NC selector, focus spot dial, multi-color status LED indicators
3. Side-mounted M12 4-pin straight connector for plug-and-play wiring
4. Built-in reverse polarity, short-circuit, surge overvoltage protection circuit
5. Internal conformal coated PCB to resist dust, moisture and oil mist

Working Principle

1. RGB tri-color LED emits full-spectrum light onto target surface; light reflects back into internal high-precision color receiver.
2. Internal DSP chip separates red, green, blue light intensity signals, calculates chromatic aberration and contrast value of the target.
3. Compares real-time chromatic data with pre-taught reference color threshold to output switch signal or transmit digital data via IO-Link.
4. Adaptive frequency modulation automatically suppresses interference from factory fluorescent / LED flickering light sources.

Installation Requirements

1. Mount via standard M3 screw holes on housing flanges, tightening torque limited to 0.5 Nm to avoid housing deformation
2. Maintain 5 mm minimum clearance between sensor lens and target to prevent signal saturation
3. Avoid direct strong reflective metal surfaces parallel to lens within detection range
4. M12 cable wiring sequence strictly follows factory pin definition; shielded IO-Link cable recommended for distances over 10 meters
5. Vertical/horizontal mounting allowed; do not install upside-down with lens facing upwards in heavy dust environments

Function & Feature Highlights

1. 3-color full-spectrum identification, stable detection for low-contrast, metallic, matte, translucent workpieces
2. One-click auto-teaching function, supports storing up to 8 independent color threshold groups
3. IO-Link digital communication enables remote parameter modification, real-time chromatic data upload, service life monitoring
4. Built-in LED lifespan self-diagnosis: slow blink indicates residual emitter life <10%; fast blink requires immediate replacement
5. Dual output logic (NO/NC switchable), dual transistor output for cascading multiple sensors
6. Anti-vibration industrial-grade structure for 24/7 continuous assembly line operation

Typical Application Scenarios

• Packaging line color mark positioning, label missing inspection
• Automotive component plastic housing color sorting
• Food & pharmaceutical blister pack color seal detection
• Logistics parcel barcode / colored label sorting recognition
• Electronics PCB solder mask color verification
• Textile fabric color deviation detection

Operation & Maintenance Precautions

1. Cut off DC power before lens cleaning or parameter adjustment
2. Clean lens only with lint-free cloth soaked in isopropyl alcohol; abrasive cloth, acetone, strong solvents forbidden
3. Quarterly compressed air dust blow for lens surface in dusty workshop environments
4. Annual inspection of mounting screw tightness to eliminate vibration loosening
5. Prohibit long-term direct UV radiation exposure (over 8 hours daily), will accelerate lens yellowing
6. Do not use in environments containing corrosive acid/alkaline gas or flammable explosive vapor
7. Storage environment must avoid condensation and mechanical heavy impact