GL-R143F Keyence GL-R Type 4 Safety Light Curtain 143 Beam

GL-R143F Keyence GL-R Series Type 4 Safety Light Curtain

GL-R143F is a robust Type 4 safety light curtain from the Keyence GL-R series. It ships as a transmitter and receiver set. Moreover, this is a finger protection type with 143 beam axes. Total length is 1440 mm. Meanwhile, detection height is 1420 mm. Beam axis spacing is 10 mm. Therefore, detection capability reaches ø14 mm. The light source is an infrared LED at 870 nm. Additionally, detecting distance runs from 0.2 to 10 m. Response time on OSSD channel 0, ON to OFF, is max. 19.9 ms. Synchronization works by optical or wire method, set by wiring. Furthermore, Oiltech Controls supplies tested surplus and refurbished options for automation spare parts.

Technical Data

• Brand: Keyence
• Model: GL-R143F
• Series: GL-R series
• Type: Type 4 ESPE / AOPD safety light curtain
• Set contents: Transmitter plus receiver
• Synchronization: Optical or wire, set by wiring
• Light source: Infrared LED, 870 nm
• Effective aperture angle: Max. ±2.5° at 3 m or more
• Detection mode: ON when no interruption in detection zone
• Interference prevention: Up to 2 GL-R systems, Channel A/B for optical, automatic for wire
• Protection type: Finger protection
• Detection capability: ø14 mm
• Beam axes: 143
• Beam axis spacing: 10 mm
• Detection height: 1420 mm
• Total length: 1440 mm
• Detecting distance: 0.2 to 10 m
• Response time: Max. 19.9 ms, OSSD channel 0, ON to OFF
• Built-in ports: None
• Protocols: None
• Communication expansion: None
• Supply voltage: 24 VDC ±20%, ripple P-P 10% or less, Class 2
• Control output (OSSD): 2 transistor outputs, PNP or NPN by cable type, max. 500 mA load
• 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, PNP or NPN by cable, max. 50 mA
• 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
• Protection circuit: Reverse-current, per-output short-circuit, surge protection
• Current consumption: Transmitter max. 81 mA, receiver max. 98 mA, OSSD current excluded
• 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 per IEC60529
• Overvoltage category: II
• Material: Aluminum main unit, nylon GF 30% cases, polycarbonate and SUS304 front cover
• Dimensions (H×W×D): Not available
• Weight: Transmitter 2100 g, receiver 2100 g
• Lifecycle: Active, official Keyence production status confirmed, last verified 2026-09

Oiltech Controls Review

• The GL-R143F covers 1420 mm of finger protection in one set.
• Moreover, 143 beams at 10 mm spacing catch small finger intrusions.
• Type 4, SIL3, and PLe ratings suit high risk machine guarding.
• Therefore, IP65 and IP67 ratings handle washdown and dusty cells.
• Optical or wire sync gives layout freedom.
• Meanwhile, 19.9 ms response supports short safety distances.
• Oiltech Controls verifies each set before shipment.
• Additionally, tested surplus and refurbished sets cut replacement cost.

Oiltech Controls’s Insight

• Match detection height to the actual opening size.
• Moreover, confirm PNP or NPN cable type before ordering.
• Check the 0.2 to 10 m range for your machine layout.
• Therefore, plan for the 19.9 ms response in the safety distance math.
• Use Channel A/B when two GL-R sets sit close.
• Meanwhile, keep OSSD load under 500 mA per output.
• Stay within -10 to +55 °C at the mounting point.

Suitable Equipment

• Presses, punches, and stamping machines.
• Robot cells and pick-and-place units.
• Packaging and palletizing lines.
• Assembly stations with operator access.
• Cutting, bending, and forming equipment.
• Automated warehouse entry points.
• Retrofit guarding for older production lines.

Installation Guide

• Mount transmitter and receiver facing each other.
• Moreover, keep the 1420 mm detection height over the opening.
• Set distance within 0.2 to 10 m.
• Therefore, choose optical or wire sync at wiring time.
• Wire 24 VDC ±20% Class 2 power.
• Match PNP or NPN cable type to the controller.
• Keep OSSD load at 500 mA or less.
• Finally, verify IP65 / IP67 seals after mounting.

Debug and Maintenance Convenience

• Optical sync removes one cable run between units.
• Moreover, wire sync helps when units sit in tight spaces.
• Channel A/B switch avoids cross talk in dense cells.
• Therefore, AUX and error outputs speed up fault checks.
• Aluminum body and SUS304 cover resist shop wear.
• Meanwhile, clean the front cover on a regular schedule.

Compatibility Notes

• Works as a transmitter and receiver pair only.
• Moreover, OSSD type is set by cable, PNP or NPN.
• No built-in ports, protocols, or communication expansion.
• Therefore, up to 2 GL-R systems can share one area.
• Muting lamp output available on the supplemental channel.
• Meanwhile, check safety relay or controller input ratings.

Certifications and Compliance

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

Packing List

• 1 × Keyence GL-R143F transmitter.
• 1 × Keyence GL-R143F receiver.
• 1 × quick reference or installation guide when supplied.
• Accessories depend on stock condition and order scope.

Warranty and Shipping

• 12-month warranty covers eligible units.
• Moreover, dispatch in 24 to 28 hours after order confirmation.
• Shipping by FedEx, UPS, or DHL.
• Therefore, tracking is provided after dispatch.
• Global shipment support from Oiltech Controls.

Why Buy From Oiltech Controls?

• Over 15 years in industrial automation spare parts.
• Worldwide shipping support.
• Tested industrial surplus and refurbished options.
• 12-month warranty.
• Technical verification before shipment.
• Support for obsolete control systems.

FAQ

Q: How do I choose between optical and wire synchronization?

A: Optical sync saves one cable run. However, choose wire sync when the units sit close together or when optical paths may be blocked.

Q: What safety distance does the 19.9 ms response require?

A: Add the 19.9 ms to machine stop time. Then multiply by the approach speed. Also add the ø14 mm detection factor for finger protection.

Q: Can two GL-R143F sets work side by side?

A: Yes. Up to 2 GL-R systems can share one area. Therefore, set Channel A and B for optical sync, or let wire sync handle it automatically.

Q: How do I pick the right cable type?

A: Match the cable to your controller input. PNP and NPN versions are set by cable type. Therefore, order the correct one.

Q: What should I check before buying a surplus GL-R143F set?

A: Confirm both transmitter and receiver are included. Moreover, check lens clarity, cable type, OSSD function, and sync mode. Also ask for test records and warranty terms. Write to info@oiltechcontrols.com for checks.

Contact Information

Inquiries: info@oiltechcontrols.com
Phone / WhatsApp: +86 158 8020 0923

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