GL-R71F Keyence GL-R Series Safety Light Curtain

Keyence GL-R71F Type 4 Safety Light Curtain — Finger Protection, 71 Beams

Technical Specifications

• Brand: Keyence
• Model: GL-R71F
• Series: GL-R series
• Category: Type 4 safety light curtain (ESPE / AOPD)
• Protection type: Finger protection
• Detection capability: ø14 mm
• Beam axes: 71
• Beam axis spacing: 10 mm
• Detection height: 700 mm
• Total length: 720 mm
• Detecting distance: 0.2 to 10 m
• Light source: Infrared LED (870 nm)
• Effective aperture angle: Max. ±2.5° at 3 m or more
• Response time (OSSD, ON→OFF): Max. 12.1 ms
• Supply voltage: 24 VDC ±20%, Class 2
• Current consumption: Transmitter max. 66 mA; receiver max. 78 mA
• Control output (OSSD): 2 transistor outputs, max. load 500 mA
• Supplemental output: AUX / error / muting-lamp, max. 50 mA
• Operating temperature: -10 to +55 °C, no freezing
• Storage temperature: -25 to +60 °C, no freezing
• Relative humidity: 15 to 85 % RH operating, no condensation
• Ambient light: Incandescent 3,000 lux or less; sunlight 20,000 lux or less
• Protection rating: IP65 / IP67 (IEC60529)
• Safety standards: IEC61496-1/-2 Type 4, IEC61508 SIL3, IEC62061 SIL CL3, EN ISO13849-1 Category 4 PLe, UL508, UL1998
• EMC: IEC/EN61496-1, EN55011 Class A, FCC Part15B Class A, ICES-003 Class A
• Weight: Transmitter 1000 g; receiver 1010 g

Key Performance and Environmental Resistance

• The GL-R71F delivers a 0.2 to 10 m detecting distance for flexible machine layouts.
• Infrared LED emission at 870 nm keeps the beam stable under typical factory lighting.
• The Type 4 ESPE / AOPD design supports Category 4 and PLe safety architectures.
• Optical synchronization or wire synchronization depends on your wiring choice.
• Interference prevention handles up to 2 GL-R systems using Channel A/B switching.
• The IP65/IP67 housing resists dust and water jets in demanding production areas.
• Reverse-current, short-circuit, and surge protection circuits safeguard each output.
• An effective aperture angle of ±2.5° helps maintain alignment over long distances.

Installation Guide

• Mount the transmitter and receiver so their fronts face each other at the same height.
• Keep the 700 mm detection height aligned with the hazard zone you need to guard.
• Use the 10 mm beam spacing to confirm finger-level coverage across the opening.
• Select optical or wire synchronization before wiring the pair to your safety relay.
• Connect the OSSD outputs to a safety circuit rated for the 500 mA load.
• Check the response time of 12.1 ms against your machine stopping performance.
• Verify the IP65/IP67 seal and cable entries after mechanical installation.
• Test the detection zone with a ø14 mm test rod before starting production.

FAQ

• Q: What is the detection capability of the GL-R71F?
  A: The GL-R71F detects a ø14 mm object, which suits finger protection applications.
• Q: How many beam axes does this model have?
  A: It has 71 beam axes with a 10 mm spacing and a 700 mm detection height.
• Q: What is the maximum detecting distance?
  A: The detecting distance ranges from 0.2 m to 10 m for flexible installation.
• Q: Which safety standards does it meet?
  A: It meets IEC61496-1/-2 Type 4, IEC61508 SIL3, and EN ISO13849-1 Category 4 PLe.
• Q: What is the response time?
  A: The OSSD response time from ON to OFF is max. 12.1 ms.
• Q: Can I use two GL-R systems nearby?
  A: Yes, interference prevention supports up to 2 GL-R systems with Channel A/B switching.
• Q: What is the operating temperature range?
  A: The unit operates from -10 to +55 °C with no freezing.
• Q: Is the GL-R71F in stock?
  A: Yes, we keep new original stock available and ship within 5 days.
• Q: What shipping methods do you use?
  A: We use common carriers such as FedEx, UPS, and DHL.
• Q: Can I return the product?
  A: Yes, we support returns within 30 days under our return policy.

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