GL-R159F Keyence Safety Light Curtain | GL-R Type 4 159 Beam

GL-R159F Keyence Type 4 Safety Light Curtain

The GL-R159F is a robust Type 4 safety light curtain from the Keyence GL-R series. It ships as a transmitter and receiver set. 159 beam axes cover a 1580 mm detection height. Finger protection detection capability is ø14 mm. Total length is 1600 mm. Optical or wire synchronization depends on wiring. This curtain fits press brakes, robots, and assembly cells that need certified finger-level protection.

Optical and Detection Data

• Model: GL-R159F
• Brand: Keyence
• Series: GL-R series
• Safety type: Type 4 ESPE / AOPD
• Protection type: Finger protection
• Detection capability: ø14 mm
• Beam axes: 159
• Beam axis spacing: 10 mm
• Detection height: 1580 mm
• Total length: 1600 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: Max. 21.6 ms, OSSD channel 0, ON to OFF
• Detection mode: ON when no interruption is present
• Synchronization: Optical or wire, set by wiring
• Interference prevention: Up to 2 GL-R systems

Electrical and Safety Ratings

• Supply voltage: 24 VDC ±20%, ripple 10% or less, Class 2
• OSSD: 2 transistor outputs, PNP or NPN by cable type
• OSSD max load: 500 mA
• Residual voltage ON: Max. 2.5 V at 5 m cable
• OFF-state voltage: Max. 2.0 V at 5 m cable
• Leakage current: Max. 200 µA
• Max capacitive load: 2.2 µF
• Load wiring resistance: Max. 2.5 Ω
• Supplemental output: AUX, error, muting-lamp transistor output
• Supplemental load: Max. 50 mA
• Current consumption: Transmitter max. 85 mA, receiver max. 102 mA
• Protection circuit: Reverse-current, short-circuit, surge protection

Certified Safety Standards

• IEC61496-1/-2, Type 4 ESPE / AOPD
• IEC61508, SIL3
• IEC62061, SIL CL3
• EN ISO13849-1, Category 4, PLe
• UL508 and UL1998
• EMC: IEC/EN61496-1, EN55011 Class A, FCC Part15B Class A, ICES-003 Class A

Environment and Physical Data

• Operating temperature: -10 to +55 °C, no freezing
• Storage temperature: -25 to +60 °C, no freezing
• Operating humidity: 15 to 85 % RH, no condensation
• Storage humidity: 15 to 95 % RH
• Ambient light: Incandescent 3,000 lux or less, sunlight 20,000 lux or less
• Protection rating: IP65 / IP67, IEC60529
• Overvoltage category: II
• Material: Aluminum body, nylon case, polycarbonate and SUS304 front cover
• Weight: Transmitter 2300 g, receiver 2300 g

Installation Guidance

• Set detecting distance between 0.2 and 10 m.
• Keep effective aperture angle within ±2.5°.
• Choose optical or wire synchronization before wiring.
• Use Channel A/B switch for two optical systems.
• Mount the 1600 mm bar with firm brackets.
• Keep ambient light below rated limits.

Setup and Maintenance Tips

• Check OSSD response time against machine stop time.
• Keep front cover clean for stable beams.
• Verify IP65/IP67 seals after washdown.
• Test muting lamp and AUX output regularly.
• Confirm alignment after any mechanical shock.

Compatibility Notes

• Works as a matched transmitter and receiver set.
• PNP or NPN output depends on cable type.
• No built-in ports or protocols.
• No communication expansion.
• Fits safety relays and controllers with OSSD inputs.

Packing List and Warranty

• 1 x Keyence GL-R159F transmitter
• 1 x Keyence GL-R159F receiver
• 1 x Quick guide
• 1 x Test report
• 12-month warranty
• 24 to 28 hour dispatch

Shipping Methods

• Ships by FedEx, UPS, and DHL.
• Tracking provided after dispatch.
• Industrial packing for safe transit.
• Contact us for freight and customs support.

Oiltech Controls Review

• Oiltech Controls supplies tested industrial automation spares.
• Each GL-R159F set is checked before shipment.
• We support obsolete and hard-to-find safety lines.
• Global buyers use us for fast replacement sourcing.
• Our team verifies beam alignment and OSSD output.

Oiltech Controls’s Insight

• Use the GL-R159F where fingers need ø14 mm protection.
• It fits press brakes and robotic cells.
• It suits packaging and assembly lines.
• It works in washdown zones with IP65/IP67.
• It replaces damaged Type 4 curtains without redesign.

Best Fit Equipment

• Press brakes and hydraulic presses
• Robot work cells
• Assembly and fastening stations
• Packaging and palletizing lines
• Automated storage and retrieval systems

FAQ

Q: What is the difference between optical and wire synchronization on the GL-R159F?

A: Optical sync uses light between transmitter and receiver. Wire sync uses a cable link. Choose based on wiring layout and interference. Wire sync avoids optical crosstalk in tight cells.

Q: Can two GL-R159F sets run side by side?

A: Yes, with limits. Optical mode supports up to 2 GL-R systems using Channel A/B. For more units, use wire synchronization. Check crosstalk before final mounting.

Q: How do I match OSSD response time to my machine?

A: The GL-R159F response time is max. 21.6 ms. Add this to machine stop time. Total must meet your safety distance calculation. Recheck after any wiring change.

Q: What cable type should I order for PNP or NPN output?

A: The cable type sets PNP or NPN. Confirm your safety relay input type first. Order the matching cable to avoid rewiring. Both types share the same OSSD rating.

Q: How do I verify a used GL-R159F set before buying?

A: Ask for beam alignment tests and OSSD switching checks. Confirm both transmitter and receiver are matched. Also check lens condition and IP seals. Oiltech Controls runs these checks before shipment.

Why Buy From Oiltech Controls?

• 15+ years in industrial automation spare parts
• Worldwide shipment support
• Tested surplus and refurbished options
• 12-month warranty
• Technical checks before every shipment
• Help for obsolete control systems

Email info@oiltechcontrols.com or message WhatsApp +86 158 8020 0923 for stock, lead time, and price.

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