Keyence LR – W70C Optic Sensor (LRW70C)
Product Overview
Main Functions
- Precise Small – Object Detection
With a 30–70 mm detecting distance and a small spot size (1.6 × 2.9 mm at 50 mm), it accurately detects tiny components (e.g., electronic chips, small fasteners) and identifies subtle surface variations, ensuring no missed detections or false triggers in high – precision assembly linesKEYENCE SINGAPORE PTE LTD..
- Dual – Spot and Multi – Mode Detection
It offers 1 – spot, 2 – spot difference monitoring, and 2 – point matching modes, suitable for applications such as checking part alignment, detecting surface defects, and verifying assembly completeness, adapting to various inspection requirements in different industrial processesKEYENCE SINGAPORE PTE LTD..
- Flexible Response and Timer Settings
Response time is selectable (200 µs–999 ms based on mode), and timer functions (OFF/ON delay/OFF delay/one – shot) are available, enabling synchronization with production line speeds and precise control of output signals for process optimizationKEYENCE SINGAPORE PTE LTD..
- Anti – Interference and Stable Operation
The mutual interference reduction function allows up to 2 units to work simultaneously when alternate frequencies are set, avoiding signal crosstalk. The IP65/IP67 – rated housing and wide temperature range (- 20 to + 50 °C) ensure reliable performance in dusty, wet, or temperature – varying industrial settingsKEYENCE SINGAPORE PTE LTD..
- Easy Integration and Configuration
The M12 4 – pin connector enables quick connection to industrial networks, and NPN/PNP, NO/NC output selection supports seamless integration with PLCs and automation systems. It requires minimal setup time, reducing operational complexity and improving work efficiency.
Technical Features
| Feature | Details |
|---|---|
| Sensor Type | Small/dual – spot self – contained full – spectrum photoelectric sensor, M12 4 – pin connector typeKEYENCE SINGAPORE PTE LTD. |
| Light Source | White LEDKEYENCE SINGAPORE PTE LTD. |
| Detecting Distance | 30–70 mmKEYENCE SINGAPORE PTE LTD. |
| Minimum Spot Diameter | Approx. 1.6 × 2.9 mm at 50 mmKEYENCE SINGAPORE PTE LTD. |
| Output Configuration | NPN/PNP open collector selectable; NO/NC switchable; Max 30 VDC, 50 mA, residual voltage ≤ 2 V |
| Response Time | 1 – Spot Mode: 200 µs, 1 ms, 10 ms, 100 ms, 500 ms
2 – Spot Difference Monitoring: 500 µs, 2.5 ms, 20 ms, 200 ms, 999 ms 2 – Spot 2 – Point Matching: 400 µs, 2 ms, 20 ms, 200 ms, 999 msKEYENCE SINGAPORE PTE LTD. |
| Power Supply | 10–30 VDC; Current consumption: ≤ 60 mA (24 VDC), ≤ 110 mA (12 VDC) |
| Environmental Resistance | Operating temp: – 20–+50 °C; Storage temp: – 30–+60 °C
Relative humidity: 35–85 % RH (no condensation) Vibration resistance: 10–55 Hz, 1.5 mm double amplitude, X/Y/Z axes for 2 hours each Shock resistance: 1000 m/s², 6 times in 6 directions Protection rating: IP65/IP67KEYENCE DEUTSCHLAND GmbH |
| Material | Case: Zinc die cast (nickel – chrome plating); Indicator cover: PPSU; Buttons: PES; Lens cover/display: PMMA (scratch – resistant coating); Connector ring: PMP; Connector socket: PEIKEYENCE DEUTSCHLAND GmbH |
Product Dimensions and Weight
| Item | Details |
|---|---|
| Overall Dimensions | 30 mm (W) × 30 mm (H) × 52 mm (D) (typical for LR – W70C) |
| Connector | M12 4 – pin type (cable sold separately)KEYENCE SINGAPORE PTE LTD. |
| Weight | Approximately 75 g (sensor head only)KEYENCE DEUTSCHLAND GmbH |
| Mounting Method | M3 screw mounting; compatible with standard photoelectric sensor mounting brackets |
| Indicator Lights | Red LED (output ON), Green LED (stable operation), Orange LED (setting mode) |
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