GL-R87F Type 4 Safety Light Curtain by Keyence
The GL-R87F is a robust Type 4 safety light curtain from Keyence. It belongs to the GL-R series. This finger protection model has 87 beam axes. Total length is 880 mm. Detection height reaches 860 mm. Beam spacing is 10 mm with ø14 mm detection capability. It ships as a transmitter and receiver set. The infrared LED runs at 870 nm. Response time is max. 13.8 ms. It meets SIL3, PLe Category 4, and UL standards. This makes it a strong choice for machine guarding.
Optical and Detection Performance
- Detection capability ø14 mm for finger protection.
- Beam axes 87 with 10 mm spacing.
- Detection height 860 mm; total length 880 mm.
- Detecting distance 0.2 to 10 m for flexible mounting.
- Effective aperture angle max. ±2.5° at 3 m or more.
- Light source infrared LED at 870 nm.
- Response time max. 13.8 ms for OSSD channel 0, ON to OFF.
Synchronization and Interference Control
- Optical synchronization or wire synchronization, set by wiring.
- Interference prevention up to 2 GL-R systems.
- Channel A/B switch for optical sync.
- Automatic channel for wire sync.
- Detection mode turns ON when no interruption exists.
Electrical and Safety Ratings
- Supply voltage 24 VDC ±20%, ripple 10% or less, Class 2.
- OSSD outputs 2 transistor outputs, PNP or NPN by cable type.
- Max load 500 mA per OSSD.
- Residual voltage ON max. 2.5 V; OFF max. 2.0 V at 5 m cable.
- Leakage current max. 200 µA; capacitive load max. 2.2 µF.
- Supplemental output AUX, error, muting-lamp, max. 50 mA.
- Current draw transmitter max. 69 mA; receiver max. 81 mA.
Standards and Protection
- Safety standards IEC61496-1/-2 Type 4, IEC61508 SIL3, IEC62061 SIL CL3.
- EN ISO13849-1 Category 4, PLe.
- UL508 and UL1998 listed.
- EMC IEC/EN61496-1, EN55011 Class A, FCC Part15B Class A.
- Protection circuit reverse-current, short-circuit, and surge protection.
- Protection rating IP65/IP67 per IEC60529.
Environment and Build
- Operating temperature -10 to +55 °C, no freezing.
- Storage temperature -25 to +60 °C, no freezing.
- Humidity 15 to 85 % RH operating; 15 to 95 % RH storage.
- Ambient light 3,000 lux incandescent; 20,000 lux sunlight.
- Material aluminum body, nylon case, polycarbonate front cover, SUS304.
- Weight 1300 g each for transmitter and receiver.
Oiltech Controls’s Insight
The GL-R87F suits press brakes, packaging machines, and robot cells. It guards finger access points on small openings. The 10 mm beam spacing catches hands and fingers before entry. The 0.2 to 10 m range fits both close and long spans. The Type 4 rating meets high-risk applications. Use it with safety relays or safety PLCs. The IP65/IP67 rating handles washdown and dust. The aluminum body resists vibration on press and stamping lines.
Why Buy From Oiltech Controls?
- Over 15 years in industrial automation spare parts.
- Global shipment support with FedEx, UPS, and DHL.
- Tested industrial surplus and refurbished options.
- 12-month warranty on every unit.
- Technical verification before dispatch.
- Support for obsolete control systems and legacy parts.
Contact us at info@oiltechcontrols.com or WhatsApp +86 158 8020 0923. We ship in 24 to 28 hours.
FAQ
Q: What protection level does the GL-R87F meet?
A: It meets Type 4 ESPE/AOPD, SIL3, SIL CL3, and EN ISO13849-1 Category 4 PLe. This suits high-risk machine guarding.
Q: How does it synchronize between transmitter and receiver?
A: It uses optical or wire synchronization, set by wiring. Optical sync uses a Channel A/B switch. Wire sync runs automatic.
Q: Can I use two GL-R systems side by side?
A: Yes. It prevents interference for up to 2 GL-R systems. Use the Channel A/B switch for optical sync.
Q: What is the response time and why does it matter?
A: It is max. 13.8 ms for OSSD ON to OFF. Faster response cuts the safety distance to the hazard. This saves floor space.
Q: How do I select the right light curtain for my guard opening?
A: Match detection capability to the risk. Use ø14 mm for finger protection. Check detection height against your opening. Confirm the 0.2 to 10 m range fits your layout. For high-risk zones, pick Type 4 like the GL-R87F.
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