The SICK WS/WE140-2D430 is a Type 4 safety light curtain designed for personnel and machinery protection in industrial automation. It provides reliable access monitoring and perimeter guarding for hazardous areas, ensuring compliance with international safety standards (e.g., IEC 61496-1/2).
Technical Specifications:
Category Details
Type Type 4 Safety Light Curtain (IEC 61496-1/2)
Protective Height 430 mm
Resolution 14 mm (finger/hand detection)
Number of Beams 31
Scanning Range 0.5 m to 7 m (max. 14 m with reflector)
Response Time ≤ 20 ms (dependent on scanning range)
Light Source Infrared LEDs (950 nm)
Electrical Characteristics:
Operating Voltage: 24 V DC ±20%
Current Consumption: ≤ 1.2 A (including OSSD outputs)
Outputs: 2 OSSD (Output Signal Switching Devices), PNP, 100 mA each
Auxiliary Outputs: 2 PNP, 100 mA (e.g., for muting or override)
Control Inputs: 2 (e.g., for muting, reset, or external device monitoring)
Communication: RS-232/422 (configurable via software)
Mechanical & Environmental Properties:
Housing Material: Aluminum profile with polycarbonate windows
Protection Rating: IP65 (dust-tight and protected against water jets)
Dimensions: 540 mm × 50 mm × 45 mm (H×W×D)
Weight: ≈ 1.2 kg (transmitter/receiver each)
Operating Temperature: -10 °C to +50 °C
Storage Temperature: -25 °C to +70 °C
Safety Ratings:
Safety Integrity Level (SIL): SIL 3 (IEC 61508)
Performance Level (PL): PL e (ISO 13849-1)
MTTFd: > 100 years
Diagnostic Coverage (DC): > 99%
Key Features:
High Resolution: 14 mm beam spacing for finger/hand protection.
Extended Range: Up to 14 m range with reflector mode.
Flexible Configuration: Programmable via SICK’s SOPAS software.
Muting Function: Supports automated muting for material flow.
Visual Indicators: LEDs for status (power, alignment, blockage, errors).
Robust Design: Resists vibration, shock, and environmental contaminants.