GL-R24H Keyence Type 4 Safety Light Curtain | GL-R Series Hand Protection 24 Beam
The GL-R24H is a robust Type 4 safety light curtain from the Keyence GL-R series. It ships as a transmitter and receiver set with 24 beam axes and a 460 mm detection height. The GL-R24H protects hands at 25 mm resolution and reaches up to 15 m. It meets PLe, Category 4, and SIL3 for machine guarding.
Optical and Detection Data
- Light source: infrared LED at 870 nm.
- Detection capability: ø25 mm for hand protection.
- Beam axes: 24 with 20 mm spacing.
- Detection height: 460 mm. Total length: 480 mm.
- Detecting distance: 0.2 to 15 m.
- Response time: 7.0 ms max from ON to OFF.
- Aperture angle: ±2.5° max at 3 m or more.
Synchronization and Outputs
- Synchronization by optical link or wire, set by wiring.
- OSSD: 2 transistor outputs, PNP or NPN by cable type.
- OSSD load: 500 mA maximum.
- Residual voltage ON: 2.5 V max at 5 m cable.
- OFF-state voltage: 2.0 V max at 5 m cable.
- Supplemental AUX, error, and muting-lamp output at 50 mA.
- Interference prevention for up to 2 GL-R systems.
Safety and Electrical Ratings
- Supply voltage: 24 VDC ±20%, Class 2.
- Ripple: P-P 10% or less.
- Safety standards: IEC61496-1/-2 Type 4, IEC61508 SIL3.
- Machine safety: EN ISO13849-1 Category 4, PLe.
- Other approvals: IEC62061 SIL CL3, UL508, UL1998.
- EMC: EN55011 Class A, FCC Part15B Class A, ICES-003 Class A.
- Protection circuit: Reverse-current, short-circuit, surge protection.
- Current draw: Transmitter 57 mA max, receiver 72 mA max.
Environment and Housing
- 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.
- Protection rating: IP65/IP67 per IEC60529.
- Overvoltage category: II.
- Weight: 660 g transmitter, 660 g receiver.
- Body: aluminum. Case: nylon GF30%. Cover: polycarbonate, SUS304.
Oiltech Controls’s Insight
- Wire synchronization is more stable on long cable runs.
- Use optical sync only when wiring is short and clean.
- Align the transmitter and receiver before fixing brackets.
- Keep OSSD cables away from VFD output leads.
- Set Channel A/B to avoid cross-talk between two curtains.
- Check response time against the machine stop distance.
Best Fit Equipment
- Presses, shears, and bending machines.
- Robotic work cells with open access.
- Palletizers and case packers.
- Assembly lines with hand-load stations.
- Automated storage and retrieval access points.
- Retrofit of older Type 2 or Type 4 guards.
Why Buy From Oiltech Controls?
- 15+ years in industrial automation spare parts.
- Global shipment support with FedEx, UPS, and DHL.
- Tested surplus and refurbished options available.
- 12-month warranty on eligible products.
- Technical verification before shipment.
- Support for obsolete control systems.
Shipping and Warranty
- 12-month warranty from Oiltech Controls Limited.
- Dispatch within 24 to 28 hours after payment.
- Shipping by FedEx, UPS, or DHL.
- Tracking number sent after dispatch.
- Each set is powered up and beam tested before packing.
FAQ
Q: Is the GL-R24H a complete set?
A: Yes. It includes both transmitter and receiver. Cables and mounting brackets are not included unless stated.
Q: Which synchronization should I choose?
A: Wire synchronization for most machines. Optical synchronization only when wiring is short and free of obstructions.
Q: How do I pick the right resolution?
A: 25 mm suits hand protection. For finger protection, choose a model with 14 mm detection capability.
Q: Can two GL-R curtains run side by side?
A: Yes. Up to 2 systems can work together. Use Channel A/B for optical sync, or wire sync for automatic handling.
Q: What should I check on a used GL-R24H?
A: Test all 24 beams, confirm OSSD switching, and check for lens scratches. Ask for a beam alignment report and warranty terms.
Q: Does it need a safety relay?
A: The OSSD outputs can connect to a safety relay or a safety PLC input. Confirm your machine stop circuit meets PLe.
Contact us: info@oiltechcontrols.com or +86 158 8020 0923.
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