Product Description

The Keyence SL-V20H is a high-performance safety light curtain designed to enhance operator protection and streamline machine safeguarding in industrial environments. Featuring 20 optical axes with a detection capability of 25 mm, it offers a maximum working distance of 9 meters, making it suitable for a wide range of applications. The SL-V20H utilizes infrared LED light sources operating at 850 nm, with a response time of 8.7 ms (ON→OFF) and 48.7 ms (OFF→ON), ensuring rapid detection and response. Its robust construction includes an IP65 enclosure rating, providing resistance against dust and water ingress, and it operates reliably in ambient light conditions up to 20,000 lux. The unit is compliant with international safety standards, including IEC 61496-1 (Type 4 ESPE), IEC 61508 (SIL3), and ISO 13849-1 (Category 4, PLe), ensuring high levels of safety integrity.

Technical Specifications

• Model: SL-V20H
• Detection Capability: ø25 mm
• Beam Axis Spacing: 20 mm
• Lens Diameter: ø5 mm
• Effective Aperture Angle: Max. ±2.5° (at ≥3 m operating distance)
• Working Distance: 0.1 to 9 m
• Light Source: Infrared LED (850 nm)
• Response Time (ON→OFF): 8.7 ms
• Response Time (OFF→ON): 48.7 ms
• Operation Mode: Turns ON when no interruptions are present in the detection zone (excluding when the muting function is used)
• OSSD Output:
• Type: 2 outputs each for PNP and NPN (can be changed using connector cable)
• Max. Load Current: 500 mA
• Residual Voltage (during ON): Max. 2.5 V (with a 7 m cable length)
• Leakage Current: Max. 100 µA
• Max. Capacitive Load: 2.2 µF (with a load resistance of 100 Ω)
• Load Wiring Resistance: Max. 2.5 Ω
• Non-Safety-Related Outputs:
• AUX Output: Automatic PNP/NPN switching function, 50 mA max.
• Interlock-Reset-Ready Output
• Alarm Output
• Clear/Blocked Output
• State Information Output 1, 2
• Muting Lamp Output: Incandescent lamp (24 VDC, 1 to 7 W) or LED lamp (load current: 10 to 300 mA)
• Inputs:
• EDM Input: Short-circuit current 10 mA
• Wait Input: Short-circuit current 2.5 mA
• Reset Input
• Muting Input 1, 2
• Override Input
• Protection Circuits: Reverse current protection, short-circuit protection for each output, surge protection for each output
• Approved Standards:
• EMC/EMS: IEC 61496-1, EN 61496-1, UL 61496-1
• EMI: EN 55011 Class A, FCC Part 15B Class A
• Safety: IEC 61496-1 (Type 4 ESPE), IEC 61508 (SIL3), ISO 13849-1 (Category 4, PLe)
• Power Supply:
• Voltage: 24 VDC ±10%
• Ripple (P-P): 10% or less
• Current Consumption:
• Transmitter (Centre Indicator ON): 75 mA
• Receiver (Centre Indicator ON): 77 mA
• Transmitter (Centre Indicator OFF): 70 mA
• Receiver (Centre Indicator OFF): 68 mA
• Environmental Resistance:
• Enclosure Rating: IP65 (IEC 60529)
• Overvoltage Category: II
• Ambient Light:
• Incandescent Lamp: 5,000 lux max.
• Sunlight: 20,000 lux max.
• Operating Ambient Temperature: -10 to +55 °C (No freezing)
• Storage Temperature: -25 to +60 °C (No freezing)
• Operating Relative Humidity: 15 to 85% RH (No condensation)
• Storage Relative Humidity: 15 to 95% RH
• Vibration Resistance: 10 to 55 Hz, Double amplitude 0.7 mm, 20 sweeps in each of the X, Y, and Z directions
• Shock Resistance: 100 m/s² (Approx. 10 G), 16 ms pulse, 1,000 times in each of the X, Y, and Z directions
• Material:
• Main Unit Case: Aluminium
• Upper Case/Lower Case: Zinc die-cast
• Front Cover: Polycarbonate, SUS304
• Weight:
• Transmitter: 300 g
• Receiver: 315 g