Keyence GL-R16H Safety Light Curtain

The GLR16H is a robust Type 4 safety light curtain, engineered for hazard zone protection in automated industrial environments. It offers ø25 mm detection capability across 16 beam axes, with a 300 mm detection height and high-speed response. Featuring infrared LED detection, selectable synchronisation methods, and IP67-rated aluminium housing, it is ideal for machine safeguarding, press protection, and access control in critical safety applications.

Technical Specifications

Model: GL-R16H
Detection Capability: ø25 mm
Total Length: 320 mm
Number of Beams: 16
Detection Height: 300 mm
Protection Height: 345 mm
Beam Axis Spacing / Lens Diameter: 20 mm / ø5 mm

Optical & Detection Specifications

• Detecting Distance: 0.2 to 15 m ¹
• Effective Aperture Angle: Max. ±2.5° (≥ 3 m operating distance)
• Light Source: Infrared LED (870 nm)

Response Time (OSSD)

Wire Synchronisation / One-Line / Optical Sync (Channel 0):

• ON → OFF: 6.6 ms
• OFF → ON: 48.7 ms ²
• All Blocked → ON: 63.1 ms ³

Optical Sync (Channel A or B):

• ON → OFF: 8.1 ms
• OFF → ON: 50.9 ms ²
• All Blocked → ON: 69.1 ms ³
• Detection Mode: Turns ON when no interruptions are present
• Sync Method: Optical or wire (based on wiring)
• Interference Prevention: Supports 2 GL-R systems (via sync settings or auto logic)

Control Output (OSSD Output)

• Output Type: 2 Transistor Outputs (PNP or NPN based on cable type)
• Max. Load Current: 500 mA ⁴
• Residual Voltage (ON): Max. 2.5 V (5 m cable)
• OFF State Voltage: Max. 2.0 V (5 m cable)
• Leakage Current: Max. 200 µA
• Max. Capacitive Load: 2.2 µF
• Wiring Resistance: Max. 2.5 Ω

Supplemental Output (Non-Safety Related)

• AUX Output: Transistor Output (PNP or NPN), 50 mA Max
• Error Output: Included
• Muting Lamp Output:
  • Incandescent Lamp (24 VDC, 1–5.5 W)
  • LED Lamp (10–230 mA load current)

External Input Specifications

PNP Output Cable:

• EDM, Wait, Reset, Muting 1 & 2, Override Inputs
• ON Voltage: 10–30 V
• OFF Voltage: 0–3 V or Open
• Short Circuit Current: 2.5 mA (10 mA for EDM)

NPN Output Cable:

• ON Voltage: 0–3 V
• OFF Voltage: ≥10 V or Open
• Short Circuit Current: 2.5 mA (10 mA for EDM)

GL-R16H Power & Electrical Specifications

• Power Voltage: 24 VDC ±20%, Ripple ≤10% (Class 2)
• Current Consumption:
  • Transmitter: 50 mA
  • Receiver: 69 mA
• Protection Circuit: Reverse polarity, short-circuit, and surge protection on outputs

Approved Standards & Safety Ratings

• EMC Compliance: IEC/EN/UL 61496-1 (EMS), EN 55011, FCC Part 15B, ICES-003 Class A
• Safety Ratings:
  • IEC/EN/UL 61496-1 & -2 (Type 4 ESPE/AOPD)
  • IEC/EN 61508, IEC/EN 62061 (SIL3, SIL CL3)
  • EN ISO 13849-1:2015 (Category 4, PLe)
  • UL508, UL1998

Environmental Resistance

• Enclosure Rating: IP65 / IP67 (IEC 60529)
• Overvoltage Category: II
• Ambient Light Resistance:
  • Incandescent: ≤ 3,000 lux
  • Sunlight: ≤ 20,000 lux
• Operating Temp: -10°C to +55°C (No Freezing)
• Operating Humidity: 15% to 85% RH (No Condensation)
• Storage Temp: -25°C to +60°C (No Freezing)
• Storage Humidity: 15% to 95% RH

Vibration Resistance: 10–55 Hz, 0.7 mm Double Amplitude, 20 Sweeps in X, Y, Z
Shock Resistance: 100 m/s² (≈10 G), 16 ms pulse, 1,000 times per axis

Material & Construction

• Main Unit Case: Aluminium
• Upper/Lower Case: Nylon (GF 30%)
• Front Cover: Polycarbonate, SUS304
• Weight:
  • Transmitter: 430 g
  • Receiver: 440 g

GL-R16H Key Features & Benefits:

✅ Reliable Object Detection: ø25 mm detection capability with 16 beam axes.

✅ Long Detection Range: 0.2 to 15 m range for versatile safety applications.

✅ Fast Response Time: Selectable response times as low as 6.6 ms.

✅ Rugged & Durable: IP67-rated aluminium housing for industrial use.

✅ Advanced Synchronisation Options: Wire & optical synchronisation prevent interference.

✅ Certified for Global Safety Standards: Meets SIL3, PLe, and IEC 61496 compliance.

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