GL-VM36LN Keyence Type 4 Safety Light Curtain — 36 Beam, 1400 mm | Oiltech Controls

GL-VM36LN Keyence Body Protection Light Curtain

GL-VM36LN is a Keyence GL-V series Type 4 safety light curtain. It uses 36 infrared beams for body protection. Output type is NPN. The metal housing is small and robust. Detection height is 1400 mm. Total length is 1440 mm. Beam spacing is 40 mm. It detects objects as small as ø45 mm. Response time is max. 5.3 ms. The transmitter and receiver set uses optical synchronization. Therefore, no extra sync wire is needed. It meets IEC61496-1/-2 Type 4, ISO13849-1 PL e, and IEC61508 SIL3.

Technical Specifications

• Brand: Keyence
• Model: GL-VM36LN
• Series: GL-V series
• Type: Type 4 ESPE / AOPD, body protection
• Beam axes: 36
• Beam spacing: 40 mm
• Detection height: 1400 mm
• Total length: 1440 mm
• Min. object size: ø45 mm
• Detecting distance: 0.3 to 15 m
• Light source: Infrared LED 850 nm, Exempt Group (IEC62471)
• Response time: Max. 5.3 ms (OSSD ON to OFF)
• Synchronization: Optical
• Angular aperture: Up to ±2.5° at 3 m or above
• Interference prevention: Up to 2 units by series connection and switch setting
• Supply voltage: 24 VDC -20/+25%, ripple 10% or less, Class 2
• Current consumption: Transmitter max. 145 mA; Receiver max. 158 mA
• Control output: Transistor x2 (NPN)
• Max. load current: 150 mA or less
• Residual voltage: ON up to 2.5 V; OFF up to 2.0 V (5 m cable)
• Leakage current: Up to 0.8 mA; load capacity 0.8 µF; wiring resistance up to 2.5 Ω
• Inputs: Short-circuit current approx. 3 mA
• Safety standards: IEC61496-1/-2 (Type 4), EN ISO13849-1 (Cat. 4, PL e), IEC61508 (SIL3), UL60947-1 / CSA C22.2 No.60947-1, UL1998
• EMC: IEC/EN61496-1, EN55011 Class A, FCC Part15B Class A, ICES-003 Class A
• Protection circuit: Supply reverse-connection, per-output short-circuit and surge protection
• Operating temperature: -30 to +55 °C (No freezing)
• Storage temperature: -30 to +70 °C (No freezing)
• Humidity: Up to 95 % RH (no condensation)
• Ambient light: Incandescent 3,000 lux or less; Sunlight 20,000 lux or less
• Protection rating: IP65/IP67 (IEC60529)
• Overvoltage category: II
• Vibration: 5 to 150 Hz, 1G, 10 cycles each in X/Y/Z
• Shock: 15 G, 6 ms pulses, 100 times each in X/Y/Z
• Material: Main unit Aluminum alloy; upper/lower case PPS (GF40%); front cover Polycarbonate, SUS304
• Weight: Transmitter 940 g; Receiver 950 g
• Built-in ports: None
• Protocols: None

Oiltech Controls Review

• GL-VM36LN sits between the GL-VM26LP and GL-VM104HN in height.
• The 1400 mm detection height fits mid-size access gates.
• Because the spacing is 40 mm, it is body protection, not hand protection.
• Moreover, the NPN output matches many Asian PLC cards.
• As a result, it drops into existing NPN control panels.
• In addition, the 5.3 ms response stops medium-speed motions.

Oiltech Controls’s Insight

• Do not use this model where fingers can reach the hazard.
• The ø45 mm detection size leaves a gap for small parts.
• Therefore, choose a 20 mm spacing model for hand protection.
• Because the housing is metal, it survives weld spatter areas.
• In addition, optical sync removes one cable run.

Suitable Equipment

• Conveyor transfer points with body access
• Mid-size robot cells
• Palletizing gates and wrap stations
• Automated storage entry zones
• Large packaging machines
• Material handling doors and shutters

Installation Notes

• First, mount the transmitter and receiver face to face.
• Then, align them until the indicator turns ON.
• Keep the distance between 0.3 m and 15 m.
• For two-unit setups, use the series connection and switch setting.
• Use a 24 VDC Class 2 supply. Moreover, keep ripple under 10%.
• After shock or vibration, recheck alignment. Then, clear any blocked beams.

Maintenance and Diagnostics

• The indicator ON means all 36 beams are received.
• If any beam is blocked, the OSSD turns OFF.
• Short-circuit and surge protection protect each output.
• Supply reverse-connection protection avoids wiring damage.
• Clean the front cover with a soft cloth. However, avoid harsh chemicals.
• Inspect the cover monthly. Similarly, check cable connections often.

Certifications

• IEC61496-1/-2 (Type 4 ESPE/AOPD)
• EN ISO13849-1 (Category 4, PL e)
• IEC61508 (SIL3)
• UL60947-1 / CSA C22.2 No.60947-1
• UL1998
• IEC/EN61496-1, EN55011 Class A, FCC Part15B Class A, ICES-003 Class A
• IP65/IP67 (IEC60529)

Package Contents

• 1 x GL-VM36LN Transmitter (940 g)
• 1 x GL-VM36LN Receiver (950 g)
• 1 x Instruction manual
• Mounting brackets and hardware
• Therefore, the set is ready for installation.

Warranty and Shipping

• 12-month warranty from the delivery date.
• Ships within 24-28 hours after order confirmation.
• Delivery via FedEx, UPS, or DHL.
• Moreover, a tracking number is provided after dispatch.
• If you need urgent delivery, contact us first. Then, we confirm stock.

Why Buy From Oiltech Controls?

• We offer 15+ years of industrial automation spare parts knowledge.
• We ship worldwide with full tracking support.
• We supply tested surplus and refurbished options.
• Every unit carries a 12-month warranty.
• We verify technical details before shipment.
• We support obsolete control systems when others cannot.
• Therefore, you get a reliable source for hard-to-find parts.
• Contact: info@oiltechcontrols.com or +86 158 8020 0923 (WhatsApp).

FAQ

Q: How do I pick between GL-VM36LN and GL-VM26LP?

A: Compare the opening height first. The GL-VM36LN covers 1400 mm. The GL-VM26LP covers 1000 mm. Also, check the output type. GL-VM36LN uses NPN. GL-VM26LP uses PNP. Match your PLC input card.

Q: Can GL-VM36LN replace a GL-VM104HN on a shorter gate?

A: Yes, if the opening is about 1400 mm. The GL-VM104HN covers 2060 mm, which is longer. Therefore, using it on a short gate wastes money. The GL-VM36LN fits better and costs less.

Q: What safety distance should I use for body protection?

A: Calculate the distance per ISO13855. Use the 5.3 ms response time and your machine stop time. Also, add the approach speed factor. Do not guess this value. A wrong distance leaves a gap.

Q: My PLC uses PNP inputs. Can I still use this NPN model?

A: No, not directly. The NPN output sinks current to 0 V. A PNP input expects a positive signal. Therefore, choose a PNP model instead. For example, pick the GL-VM32HP or GL-VM26LP.

Q: What should I verify before ordering a replacement?

A: First, note the old model number and total length. Then, check the output type and connector. Also, confirm the detection height you need. Finally, check the mounting hole pattern. These steps avoid wrong orders.

Contact Information

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

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