Product Overview
The Keyence GL-R64H is a robust Type 4 safety light curtain. It belongs to the GL-R series. This model provides hand protection with 64 beam axes. It detects objects as small as ø25 mm. The total length is 1280 mm. It uses infrared LED at 870 nm. Synchronization works by optical or wire method. The detection zone turns ON when no interruption occurs.
This light curtain suits industrial automation. It offers fast response time of max. 11.3 ms. It meets high safety standards. You can use it for machine guarding. It works in temperatures from -10 to +55 °C. The housing is aluminum with polycarbonate front cover. Protection rating is IP65/IP67. It is a reliable choice for factory floors.
Technical Specifications
| Brand | Keyence |
| Model | GL-R64H |
| Series | GL-R series |
| Type | Type 4 ESPE / AOPD |
| Protection type | Hand protection |
| Detection capability | ø25 mm |
| Beam axes | 64 |
| Beam axis spacing | 20 mm |
| Detection height | 1260 mm |
| Total length | 1280 mm |
| Detecting distance | 0.2 to 15 m |
| Response time (OSSD ON→OFF) | max. 11.3 ms |
| Light source | Infrared LED (870 nm) |
| Effective aperture angle | Max. ±2.5° (at 3 m or more) |
| Synchronization | Optical or wire (by wiring) |
| Interference prevention | Up to 2 systems (Channel A/B optical; auto for wire) |
| Supply voltage | 24 VDC ±20%, ripple 10% max, Class 2 |
| Control output (OSSD) | 2 transistor outputs (PNP/NPN by cable), max. 500 mA |
| Residual voltage (ON) | max. 2.5 V (5 m cable) |
| OFF-state voltage | max. 2.0 V (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 (PNP/NPN by cable), max. 50 mA |
| Current consumption (indicator ON) | Transmitter max. 73 mA; Receiver max. 83 mA (OSSD current not included) |
| Safety standards | IEC61496-1/-2 (Type 4), IEC61508 (SIL3), IEC62061 (SIL CL3), EN ISO13849-1 (Cat 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 and surge protection |
| 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); 15 to 95 % RH (Storage) |
| Ambient light | Incandescent lamp 3,000 lux or less; Sunlight 20,000 lux or less |
| Protection rating | IP65/IP67 (IEC60529) |
| Overvoltage category | II |
| Material | Main unit Aluminum; upper/lower case Nylon (GF 30%); front cover Polycarbonate, SUS304 |
| Weight | Transmitter 1780 g; Receiver 1790 g |
| Dimensions (H×W×D) | Not available |
| Lifecycle | Active; official production status confirmed (Last verified: 2026-09) |
Installation Guide
- Mount transmitter and receiver facing each other. Keep alignment within ±2.5° when distance is 3 m or more.
- Use optical synchronization for simple setup. Use wire synchronization for noisy environments or multiple systems.
- Connect OSSD outputs to machine safety circuit. Respect max. load of 500 mA per output.
- Keep wiring resistance below 2.5 Ω. Use Class 2 power supply only.
- For interference prevention, set Channel A/B for optical sync. Wire sync handles interference automatically.
- Verify detection zone is clear before powering. The OSSD turns ON only when no interruption exists.
Debugging and Maintenance
- Check alignment first if OSSD does not turn ON. Use the AUX output for quick diagnostics.
- Clean front cover with soft cloth. Do not use solvents on polycarbonate or SUS304 parts.
- Inspect for mechanical damage after impacts. Replace unit if housing is deformed.
- Confirm supply voltage stays within 24 VDC ±20%. Ripple must be 10% or less.
- Test response time periodically. Maximum 11.3 ms ensures fast stopping.
- Keep ambient light below 3,000 lux (incandescent) or 20,000 lux (sunlight).
Compatibility Notes
This light curtain works with most safety relays and PLCs. It supports PNP or NPN output based on cable type. No built-in communication ports exist. No protocols are available. Expansion is not supported. For obsolete control systems, check OSSD voltage levels. The unit meets Category 4 and PLe. It fits GL-R series accessories. Use Keyence cables for correct PNP/NPN configuration.
Certifications and Standards
- IEC61496-1/-2 Type 4 ESPE / AOPD
- IEC61508 SIL3
- IEC62061 SIL CL3
- EN ISO13849-1 Category 4, PLe
- UL508 and UL1998
- EMC: EN55011 Class A, FCC Part15B Class A, ICES-003 Class A
Package Contents
- Transmitter unit (1 pc)
- Receiver unit (1 pc)
- Quick installation guide
- Not included: cables, mounting brackets, safety relay
Warranty and Shipping
All products include a 12-month warranty. We ship via FedEx, UPS, and DHL. Tracking is provided. Delivery times vary by region. Contact us for expedited options. The warranty covers defects in materials and workmanship. It does not cover misuse or improper installation.
Typical Applications
- Hand protection on press machines
- Robotic cell guarding
- Packaging line safety
- Automated assembly stations
- Material handling equipment
- Obsolete control system retrofits
Diagnostic Capabilities
The AUX output reports errors and muting lamp status. Use it to identify misalignment or interruption. The OSSD turns OFF when beam is blocked. Response time stays under 11.3 ms. No built-in communication port exists. Diagnostics rely on external monitoring. The error output helps reduce downtime. For advanced troubleshooting, check supply voltage and wiring resistance.
Why Buy From Oiltech Controls?
- 15+ years in industrial automation spare parts
- Global shipment support via FedEx, UPS, and DHL
- Tested industrial surplus and refurbished options
- 12-month warranty on every product
- Technical verification before shipment
- Support for obsolete control systems
Contact us for inquiries: info@oiltechcontrols.com or +86 158 8020 0923 (WhatsApp).
FAQ
Q: What is the detection capability of GL-R64H?
A: It detects ø25 mm objects. This is hand protection type.
Q: How many beam axes does it have?
A: 64 beam axes with 20 mm spacing.
Q: What is the response time?
A: Max. 11.3 ms for OSSD ON→OFF.
Q: Can I use it outdoors?
A: Yes, but keep sunlight below 20,000 lux. Protection rating is IP65/IP67.
Q: Does it have communication ports?
A: No built-in ports. No protocols. No expansion.
Q: What is the operating temperature?
A: -10 to +55 °C (no freezing).
Q: What warranty do you offer?
A: 12-month warranty. We ship by FedEx, UPS, or DHL.
Q: How do I synchronize two units?
A: Use optical synchronization with Channel A/B switch. Or use wire synchronization for automatic interference prevention.
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